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4080
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1 ;;; ccl.el --- CCL (Code Conversion Language) compiler -*- coding: iso-2022-7bit; -*-
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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) 2002, 2007 Free Software Foundation, Inc.
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6
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7 ;; Keywords: CCL, mule, multilingual, character set, coding-system
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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
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12 ;; it 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,
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17 ;; but WITHOUT ANY WARRANTY; without even the implied warranty of
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18 ;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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19 ;; GNU 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
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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 ;; Synched up with: FSF 21.0.90
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27
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28 ;;; Commentary:
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29
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30 ;; CCL (Code Conversion Language) is a simple programming language to
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31 ;; be used for various kind of code conversion. CCL program is
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32 ;; compiled to CCL code (vector of integers) and executed by CCL
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33 ;; interpreter of Emacs.
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34 ;;
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35 ;; CCL is used for code conversion at process I/O and file I/O for
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36 ;; non-standard coding-system. In addition, it is used for
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37 ;; calculating a code point of X's font from a character code.
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38 ;; However, since CCL is designed as a powerful programming language,
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39 ;; it can be used for more generic calculation. For instance,
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40 ;; combination of three or more arithmetic operations can be
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41 ;; calculated faster than Emacs Lisp.
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42 ;;
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43 ;; Syntax and semantics of CCL program is described in the
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44 ;; documentation of `define-ccl-program'.
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45
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46 ;;; Code:
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47
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48 (defconst ccl-command-table
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49 [if branch loop break repeat write-repeat write-read-repeat
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50 read read-if read-branch write call end
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51 read-multibyte-character write-multibyte-character
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52 translate-character mule-to-unicode unicode-to-mule
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53 iterate-multiple-map map-multiple map-single lookup-integer
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54 lookup-character]
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55 "Vector of CCL commands (symbols).")
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56
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57 ;; Put a property to each symbol of CCL commands for the compiler.
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58 (let (op (i 0) (len (length ccl-command-table)))
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59 (while (< i len)
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60 (setq op (aref ccl-command-table i))
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61 (put op 'ccl-compile-function (intern (format "ccl-compile-%s" op)))
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62 (setq i (1+ i))))
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63
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64 (defconst ccl-code-table
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65 [set-register
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66 set-short-const
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67 set-const
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68 set-array
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69 jump
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70 jump-cond
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71 write-register-jump
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72 write-register-read-jump
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73 write-const-jump
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74 write-const-read-jump
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75 write-string-jump
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76 write-array-read-jump
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77 read-jump
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78 branch
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79 read-register
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80 write-expr-const
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81 read-branch
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82 write-register
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83 write-expr-register
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84 call
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85 write-const-string
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86 write-array
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87 end
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88 set-assign-expr-const
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89 set-assign-expr-register
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90 set-expr-const
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91 set-expr-register
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92 jump-cond-expr-const
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93 jump-cond-expr-register
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94 read-jump-cond-expr-const
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95 read-jump-cond-expr-register
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96 ex-cmd
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97 ]
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98 "Vector of CCL compiled codes (symbols).")
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99
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100 (defconst ccl-extended-code-table
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101 [read-multibyte-character
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102 write-multibyte-character
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103 translate-character
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104 translate-character-const-tbl
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105 mule-to-unicode
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106 unicode-to-mule
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107 nil nil nil nil nil nil nil nil nil nil ; 0x06-0x0f
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108 iterate-multiple-map
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109 map-multiple
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110 map-single
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111 lookup-int-const-tbl
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112 lookup-char-const-tbl
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113 ]
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114 "Vector of CCL extended compiled codes (symbols).")
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115
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116 ;; Put a property to each symbol of CCL codes for the disassembler.
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117 (let (code (i 0) (len (length ccl-code-table)))
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118 (while (< i len)
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119 (setq code (aref ccl-code-table i))
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120 (put code 'ccl-code i)
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121 (put code 'ccl-dump-function (intern (format "ccl-dump-%s" code)))
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122 (setq i (1+ i))))
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123
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124 (let (code (i 0) (len (length ccl-extended-code-table)))
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125 (while (< i len)
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126 (setq code (aref ccl-extended-code-table i))
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127 (if code
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128 (progn
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129 (put code 'ccl-ex-code i)
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130 (put code 'ccl-dump-function (intern (format "ccl-dump-%s" code)))))
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131 (setq i (1+ i))))
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132
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133 (defconst ccl-jump-code-list
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134 '(jump jump-cond write-register-jump write-register-read-jump
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135 write-const-jump write-const-read-jump write-string-jump
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136 write-array-read-jump read-jump))
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137
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138 ;; Put a property `jump-flag' to each CCL code which execute jump in
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139 ;; some way.
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140 (let ((l ccl-jump-code-list))
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141 (while l
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142 (put (car l) 'jump-flag t)
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143 (setq l (cdr l))))
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144
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145 (defconst ccl-register-table
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146 [r0 r1 r2 r3 r4 r5 r6 r7]
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147 "Vector of CCL registers (symbols).")
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148
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149 ;; Put a property to indicate register number to each symbol of CCL.
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150 ;; registers.
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151 (let (reg (i 0) (len (length ccl-register-table)))
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152 (while (< i len)
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153 (setq reg (aref ccl-register-table i))
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154 (put reg 'ccl-register-number i)
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155 (setq i (1+ i))))
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156
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157 (defconst ccl-arith-table
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158 [+ - * / % & | ^ << >> <8 >8 // nil nil nil
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159 < > == <= >= != de-sjis en-sjis]
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160 "Vector of CCL arithmetic/logical operators (symbols).")
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161
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162 ;; Put a property to each symbol of CCL operators for the compiler.
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163 (let (arith (i 0) (len (length ccl-arith-table)))
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164 (while (< i len)
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165 (setq arith (aref ccl-arith-table i))
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166 (if arith (put arith 'ccl-arith-code i))
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167 (setq i (1+ i))))
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168
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169 (defconst ccl-assign-arith-table
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170 [+= -= *= /= %= &= |= ^= <<= >>= <8= >8= //=]
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171 "Vector of CCL assignment operators (symbols).")
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172
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173 ;; Put a property to each symbol of CCL assignment operators for the compiler.
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174 (let (arith (i 0) (len (length ccl-assign-arith-table)))
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175 (while (< i len)
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176 (setq arith (aref ccl-assign-arith-table i))
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177 (put arith 'ccl-self-arith-code i)
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178 (setq i (1+ i))))
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179
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180 (defvar ccl-program-vector nil
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181 "Working vector of CCL codes produced by CCL compiler.")
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182 (defvar ccl-current-ic 0
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183 "The current index for `ccl-program-vector'.")
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184
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185 ;; Embed integer DATA in `ccl-program-vector' at `ccl-current-ic' and
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186 ;; increment it. If IC is specified, embed DATA at IC.
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187 (defun ccl-embed-data (data &optional ic)
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188 ;; XEmacs: Embed characters as characters, since their integer values vary at
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189 ;; runtime.
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190 ; (if (characterp data)
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191 ; (setq data (char-int data)))
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192 (if ic
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193 (aset ccl-program-vector ic data)
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194 (let ((len (length ccl-program-vector)))
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195 (if (>= ccl-current-ic len)
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196 (let ((new (make-vector (* len 2) nil)))
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197 (while (> len 0)
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198 (setq len (1- len))
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199 (aset new len (aref ccl-program-vector len)))
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200 (setq ccl-program-vector new))))
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201 (aset ccl-program-vector ccl-current-ic data)
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202 (setq ccl-current-ic (1+ ccl-current-ic))))
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203
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204 ;; Embed pair of SYMBOL and PROP where (get SYMBOL PROP) should give
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205 ;; proper index number for SYMBOL. PROP should be
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206 ;; `translation-table-id', `translation-hash-table-id'
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207 ;; `code-conversion-map-id', or `ccl-program-idx'.
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208 (defun ccl-embed-symbol (symbol prop)
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209 (ccl-embed-data (cons symbol prop)))
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210
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211 ;; Embed string STR of length LEN in `ccl-program-vector' at
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212 ;; `ccl-current-ic'.
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213 (defun ccl-embed-string (len str)
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214 (let ((i 0))
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215 (while (< i len)
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216 (ccl-embed-data (logior (ash (aref str i) 16)
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217 (if (< (1+ i) len)
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218 (ash (aref str (1+ i)) 8)
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219 0)
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220 (if (< (+ i 2) len)
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221 (aref str (+ i 2))
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222 0)))
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223 (setq i (+ i 3)))))
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224
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225 ;; Embed a relative jump address to `ccl-current-ic' in
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226 ;; `ccl-program-vector' at IC without altering the other bit field.
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227 (defun ccl-embed-current-address (ic)
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228 (let ((relative (- ccl-current-ic (1+ ic))))
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229 (aset ccl-program-vector ic
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230 (logior (aref ccl-program-vector ic) (ash relative 8)))))
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231
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232 ;; Embed CCL code for the operation OP and arguments REG and DATA in
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233 ;; `ccl-program-vector' at `ccl-current-ic' in the following format.
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234 ;; |----------------- integer (28-bit) ------------------|
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235 ;; |------------ 20-bit ------------|- 3-bit --|- 5-bit -|
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236 ;; |------------- DATA -------------|-- REG ---|-- OP ---|
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237 ;; If REG2 is specified, embed a code in the following format.
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238 ;; |------- 17-bit ------|- 3-bit --|- 3-bit --|- 5-bit -|
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239 ;; |-------- DATA -------|-- REG2 --|-- REG ---|-- OP ---|
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240
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241 ;; If REG is a CCL register symbol (e.g. r0, r1...), the register
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242 ;; number is embedded. If OP is one of unconditional jumps, DATA is
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243 ;; changed to an relative jump address.
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244
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245 (defun ccl-embed-code (op reg data &optional reg2)
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246 (if (and (> data 0) (get op 'jump-flag))
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247 ;; DATA is an absolute jump address. Make it relative to the
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248 ;; next of jump code.
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249 (setq data (- data (1+ ccl-current-ic))))
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250 (let ((code (logior (get op 'ccl-code)
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251 (ash
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252 (if (symbolp reg) (get reg 'ccl-register-number) reg) 5)
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253 (if reg2
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254 (logior (ash (get reg2 'ccl-register-number) 8)
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255 (ash data 11))
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256 (ash data 8)))))
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257 (ccl-embed-data code)))
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258
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259 ;; extended ccl command format
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260 ;; |- 14-bit -|- 3-bit --|- 3-bit --|- 3-bit --|- 5-bit -|
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261 ;; |- EX-OP --|-- REG3 --|-- REG2 --|-- REG ---|-- OP ---|
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262 (defun ccl-embed-extended-command (ex-op reg reg2 reg3)
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263 (let ((data (logior (ash (get ex-op 'ccl-ex-code) 3)
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264 (if (symbolp reg3)
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265 (get reg3 'ccl-register-number)
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266 0))))
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267 (ccl-embed-code 'ex-cmd reg data reg2)))
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268
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269 ;; Just advance `ccl-current-ic' by INC.
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270 (defun ccl-increment-ic (inc)
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271 (setq ccl-current-ic (+ ccl-current-ic inc)))
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272
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273 ;; If non-nil, index of the start of the current loop.
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274 (defvar ccl-loop-head nil)
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275 ;; If non-nil, list of absolute addresses of the breaking points of
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276 ;; the current loop.
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277 (defvar ccl-breaks nil)
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278
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279 ;;;###autoload
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280 (defun ccl-compile (ccl-program)
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281 "Return a compiled code of CCL-PROGRAM as a vector of integer."
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282 (if (or (null (consp ccl-program))
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283 (null (integerp (car ccl-program)))
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284 (null (listp (car (cdr ccl-program)))))
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285 (error "CCL: Invalid CCL program: %s" ccl-program))
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286 (if (null (vectorp ccl-program-vector))
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287 (setq ccl-program-vector (make-vector 8192 0)))
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288 (setq ccl-loop-head nil ccl-breaks nil)
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289 (setq ccl-current-ic 0)
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290
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291 ;; The first element is the buffer magnification.
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292 (ccl-embed-data (car ccl-program))
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293
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294 ;; The second element is the address of the start CCL code for
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295 ;; processing end of input buffer (we call it eof-processor). We
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296 ;; set it later.
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297 (ccl-increment-ic 1)
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298
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299 ;; Compile the main body of the CCL program.
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300 (ccl-compile-1 (car (cdr ccl-program)))
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301
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302 ;; Embed the address of eof-processor.
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303 (ccl-embed-data ccl-current-ic 1)
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304
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305 ;; Then compile eof-processor.
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306 (if (nth 2 ccl-program)
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307 (ccl-compile-1 (nth 2 ccl-program)))
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308
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309 ;; At last, embed termination code.
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310 (ccl-embed-code 'end 0 0)
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311
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312 (let ((vec (make-vector ccl-current-ic 0))
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313 (i 0))
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314 (while (< i ccl-current-ic)
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315 (aset vec i (aref ccl-program-vector i))
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316 (setq i (1+ i)))
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317 vec))
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318
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319 ;; Signal syntax error.
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320 (defun ccl-syntax-error (cmd)
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321 (error "CCL: Syntax error: %s" cmd))
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322
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323 ;; Check if ARG is a valid CCL register.
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324 (defun ccl-check-register (arg cmd)
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325 (if (get arg 'ccl-register-number)
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326 arg
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327 (error "CCL: Invalid register %s in %s." arg cmd)))
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328
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329 ;; Check if ARG is a valid CCL command.
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330 (defun ccl-check-compile-function (arg cmd)
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331 (or (get arg 'ccl-compile-function)
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332 (error "CCL: Invalid command: %s" cmd)))
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333
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334 ;; In the following code, most ccl-compile-XXXX functions return t if
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335 ;; they end with unconditional jump, else return nil.
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336
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337 ;; Compile CCL-BLOCK (see the syntax above).
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338 (defun ccl-compile-1 (ccl-block)
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339 (let (unconditional-jump
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340 cmd)
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341 (if (or (integer-or-char-p ccl-block)
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342 (stringp ccl-block)
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343 (and ccl-block (symbolp (car ccl-block))))
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344 ;; This block consists of single statement.
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345 (setq ccl-block (list ccl-block)))
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346
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347 ;; Now CCL-BLOCK is a list of statements. Compile them one by
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348 ;; one.
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349 (while ccl-block
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350 (setq cmd (car ccl-block))
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351 (setq unconditional-jump
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352 (cond ((integer-or-char-p cmd)
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353 ;; SET statement for the register 0.
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354 (ccl-compile-set (list 'r0 '= cmd)))
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355
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356 ((stringp cmd)
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357 ;; WRITE statement of string argument.
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358 (ccl-compile-write-string cmd))
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359
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360 ((listp cmd)
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361 ;; The other statements.
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362 (cond ((eq (nth 1 cmd) '=)
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363 ;; SET statement of the form `(REG = EXPRESSION)'.
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364 (ccl-compile-set cmd))
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365
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366 ((and (symbolp (nth 1 cmd))
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367 (get (nth 1 cmd) 'ccl-self-arith-code))
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368 ;; SET statement with an assignment operation.
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369 (ccl-compile-self-set cmd))
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370
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371 (t
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372 (funcall (ccl-check-compile-function (car cmd) cmd)
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373 cmd))))
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374
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375 (t
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376 (ccl-syntax-error cmd))))
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377 (setq ccl-block (cdr ccl-block)))
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378 unconditional-jump))
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379
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380 (defconst ccl-max-short-const (ash 1 19))
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381 (defconst ccl-min-short-const (ash -1 19))
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382
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383 ;; Compile SET statement.
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384 (defun ccl-compile-set (cmd)
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385 (let ((rrr (ccl-check-register (car cmd) cmd))
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386 (right (nth 2 cmd)))
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387 (cond ((listp right)
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388 ;; CMD has the form `(RRR = (XXX OP YYY))'.
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389 (ccl-compile-expression rrr right))
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390
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391 ((integer-or-char-p right)
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392 ;; CMD has the form `(RRR = integer)'.
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393 (if (and (<= right ccl-max-short-const)
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394 (>= right ccl-min-short-const))
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395 (ccl-embed-code 'set-short-const rrr right)
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396 (ccl-embed-code 'set-const rrr 0)
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397 (ccl-embed-data right)))
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398
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399 (t
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400 ;; CMD has the form `(RRR = rrr [ array ])'.
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401 (ccl-check-register right cmd)
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402 (let ((ary (nth 3 cmd)))
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403 (if (vectorp ary)
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404 (let ((i 0) (len (length ary)))
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405 (ccl-embed-code 'set-array rrr len right)
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406 (while (< i len)
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407 (ccl-embed-data (aref ary i))
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408 (setq i (1+ i))))
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409 (ccl-embed-code 'set-register rrr 0 right))))))
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410 nil)
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411
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412 ;; Compile SET statement with ASSIGNMENT_OPERATOR.
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413 (defun ccl-compile-self-set (cmd)
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414 (let ((rrr (ccl-check-register (car cmd) cmd))
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415 (right (nth 2 cmd)))
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416 (if (listp right)
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417 ;; CMD has the form `(RRR ASSIGN_OP (XXX OP YYY))', compile
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418 ;; the right hand part as `(r7 = (XXX OP YYY))' (note: the
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419 ;; register 7 can be used for storing temporary value).
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420 (progn
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421 (ccl-compile-expression 'r7 right)
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422 (setq right 'r7)))
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423 ;; Now CMD has the form `(RRR ASSIGN_OP ARG)'. Compile it as
|
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424 ;; `(RRR = (RRR OP ARG))'.
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425 (ccl-compile-expression
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426 rrr
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427 (list rrr (intern (substring (symbol-name (nth 1 cmd)) 0 -1)) right)))
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428 nil)
|
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|
429
|
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430 ;; Compile SET statement of the form `(RRR = EXPR)'.
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431 (defun ccl-compile-expression (rrr expr)
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432 (let ((left (car expr))
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433 (op (get (nth 1 expr) 'ccl-arith-code))
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434 (right (nth 2 expr)))
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435 (if (listp left)
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436 (progn
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|
437 ;; EXPR has the form `((EXPR2 OP2 ARG) OP RIGHT)'. Compile
|
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|
438 ;; the first term as `(r7 = (EXPR2 OP2 ARG)).'
|
|
|
439 (ccl-compile-expression 'r7 left)
|
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440 (setq left 'r7)))
|
|
|
441
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|
|
442 ;; Now EXPR has the form (LEFT OP RIGHT).
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443 (if (and (eq rrr left)
|
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444 (< op (length ccl-assign-arith-table)))
|
|
|
445 ;; Compile this SET statement as `(RRR OP= RIGHT)'.
|
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|
446 (if (integer-or-char-p right)
|
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|
447 (progn
|
|
|
448 (ccl-embed-code 'set-assign-expr-const rrr (ash op 3) 'r0)
|
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449 (ccl-embed-data right))
|
|
|
450 (ccl-check-register right expr)
|
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451 (ccl-embed-code 'set-assign-expr-register rrr (ash op 3) right))
|
|
|
452
|
|
|
453 ;; Compile this SET statement as `(RRR = (LEFT OP RIGHT))'.
|
|
|
454 (if (integer-or-char-p right)
|
|
|
455 (progn
|
|
|
456 (ccl-embed-code 'set-expr-const rrr (ash op 3) left)
|
|
|
457 (ccl-embed-data right))
|
|
|
458 (ccl-check-register right expr)
|
|
|
459 (ccl-embed-code 'set-expr-register
|
|
|
460 rrr
|
|
|
461 (logior (ash op 3) (get right 'ccl-register-number))
|
|
|
462 left)))))
|
|
|
463
|
|
|
464 ;; Compile WRITE statement with string argument.
|
|
|
465 (defun ccl-compile-write-string (str)
|
|
|
466 (setq str (encode-coding-string str 'binary))
|
|
|
467 (let ((len (length str)))
|
|
|
468 (ccl-embed-code 'write-const-string 1 len)
|
|
|
469 (ccl-embed-string len str))
|
|
|
470 nil)
|
|
|
471
|
|
|
472 ;; Compile IF statement of the form `(if CONDITION TRUE-PART FALSE-PART)'.
|
|
|
473 ;; If READ-FLAG is non-nil, this statement has the form
|
|
|
474 ;; `(read-if (REG OPERATOR ARG) TRUE-PART FALSE-PART)'.
|
|
|
475 (defun ccl-compile-if (cmd &optional read-flag)
|
|
|
476 (if (and (/= (length cmd) 3) (/= (length cmd) 4))
|
|
|
477 (error "CCL: Invalid number of arguments: %s" cmd))
|
|
|
478 (let ((condition (nth 1 cmd))
|
|
|
479 (true-cmds (nth 2 cmd))
|
|
|
480 (false-cmds (nth 3 cmd))
|
|
|
481 jump-cond-address)
|
|
|
482 (if (and (listp condition)
|
|
|
483 (listp (car condition)))
|
|
|
484 ;; If CONDITION is a nested expression, the inner expression
|
|
|
485 ;; should be compiled at first as SET statement, i.e.:
|
|
|
486 ;; `(if ((X OP2 Y) OP Z) ...)' is compiled into two statements:
|
|
|
487 ;; `(r7 = (X OP2 Y)) (if (r7 OP Z) ...)'.
|
|
|
488 (progn
|
|
|
489 (ccl-compile-expression 'r7 (car condition))
|
|
|
490 (setq condition (cons 'r7 (cdr condition)))
|
|
|
491 (setq cmd (cons (car cmd)
|
|
|
492 (cons condition (cdr (cdr cmd)))))))
|
|
|
493
|
|
|
494 (setq jump-cond-address ccl-current-ic)
|
|
|
495 ;; Compile CONDITION.
|
|
|
496 (if (symbolp condition)
|
|
|
497 ;; CONDITION is a register.
|
|
|
498 (progn
|
|
|
499 (ccl-check-register condition cmd)
|
|
|
500 (ccl-embed-code 'jump-cond condition 0))
|
|
|
501 ;; CONDITION is a simple expression of the form (RRR OP ARG).
|
|
|
502 (let ((rrr (car condition))
|
|
|
503 (op (get (nth 1 condition) 'ccl-arith-code))
|
|
|
504 (arg (nth 2 condition)))
|
|
|
505 (ccl-check-register rrr cmd)
|
|
|
506 (if (integer-or-char-p arg)
|
|
|
507 (progn
|
|
|
508 (ccl-embed-code (if read-flag 'read-jump-cond-expr-const
|
|
|
509 'jump-cond-expr-const)
|
|
|
510 rrr 0)
|
|
|
511 (ccl-embed-data op)
|
|
|
512 (ccl-embed-data arg))
|
|
|
513 (ccl-check-register arg cmd)
|
|
|
514 (ccl-embed-code (if read-flag 'read-jump-cond-expr-register
|
|
|
515 'jump-cond-expr-register)
|
|
|
516 rrr 0)
|
|
|
517 (ccl-embed-data op)
|
|
|
518 (ccl-embed-data (get arg 'ccl-register-number)))))
|
|
|
519
|
|
|
520 ;; Compile TRUE-PART.
|
|
|
521 (let ((unconditional-jump (ccl-compile-1 true-cmds)))
|
|
|
522 (if (null false-cmds)
|
|
|
523 ;; This is the place to jump to if condition is false.
|
|
|
524 (progn
|
|
|
525 (ccl-embed-current-address jump-cond-address)
|
|
|
526 (setq unconditional-jump nil))
|
|
|
527 (let (end-true-part-address)
|
|
|
528 (if (not unconditional-jump)
|
|
|
529 (progn
|
|
|
530 ;; If TRUE-PART does not end with unconditional jump, we
|
|
|
531 ;; have to jump to the end of FALSE-PART from here.
|
|
|
532 (setq end-true-part-address ccl-current-ic)
|
|
|
533 (ccl-embed-code 'jump 0 0)))
|
|
|
534 ;; This is the place to jump to if CONDITION is false.
|
|
|
535 (ccl-embed-current-address jump-cond-address)
|
|
|
536 ;; Compile FALSE-PART.
|
|
|
537 (setq unconditional-jump
|
|
|
538 (and (ccl-compile-1 false-cmds) unconditional-jump))
|
|
|
539 (if end-true-part-address
|
|
|
540 ;; This is the place to jump to after the end of TRUE-PART.
|
|
|
541 (ccl-embed-current-address end-true-part-address))))
|
|
|
542 unconditional-jump)))
|
|
|
543
|
|
|
544 ;; Compile BRANCH statement.
|
|
|
545 (defun ccl-compile-branch (cmd)
|
|
|
546 (if (< (length cmd) 3)
|
|
|
547 (error "CCL: Invalid number of arguments: %s" cmd))
|
|
|
548 (ccl-compile-branch-blocks 'branch
|
|
|
549 (ccl-compile-branch-expression (nth 1 cmd) cmd)
|
|
|
550 (cdr (cdr cmd))))
|
|
|
551
|
|
|
552 ;; Compile READ statement of the form `(read-branch EXPR BLOCK0 BLOCK1 ...)'.
|
|
|
553 (defun ccl-compile-read-branch (cmd)
|
|
|
554 (if (< (length cmd) 3)
|
|
|
555 (error "CCL: Invalid number of arguments: %s" cmd))
|
|
|
556 (ccl-compile-branch-blocks 'read-branch
|
|
|
557 (ccl-compile-branch-expression (nth 1 cmd) cmd)
|
|
|
558 (cdr (cdr cmd))))
|
|
|
559
|
|
|
560 ;; Compile EXPRESSION part of BRANCH statement and return register
|
|
|
561 ;; which holds a value of the expression.
|
|
|
562 (defun ccl-compile-branch-expression (expr cmd)
|
|
|
563 (if (listp expr)
|
|
|
564 ;; EXPR has the form `(EXPR2 OP ARG)'. Compile it as SET
|
|
|
565 ;; statement of the form `(r7 = (EXPR2 OP ARG))'.
|
|
|
566 (progn
|
|
|
567 (ccl-compile-expression 'r7 expr)
|
|
|
568 'r7)
|
|
|
569 (ccl-check-register expr cmd)))
|
|
|
570
|
|
|
571 ;; Compile BLOCKs of BRANCH statement. CODE is 'branch or 'read-branch.
|
|
|
572 ;; REG is a register which holds a value of EXPRESSION part. BLOCKs
|
|
|
573 ;; is a list of CCL-BLOCKs.
|
|
|
574 (defun ccl-compile-branch-blocks (code rrr blocks)
|
|
|
575 (let ((branches (length blocks))
|
|
|
576 branch-idx
|
|
|
577 jump-table-head-address
|
|
|
578 empty-block-indexes
|
|
|
579 block-tail-addresses
|
|
|
580 block-unconditional-jump)
|
|
|
581 (ccl-embed-code code rrr branches)
|
|
|
582 (setq jump-table-head-address ccl-current-ic)
|
|
|
583 ;; The size of jump table is the number of blocks plus 1 (for the
|
|
|
584 ;; case RRR is out of range).
|
|
|
585 (ccl-increment-ic (1+ branches))
|
|
|
586 (setq empty-block-indexes (list branches))
|
|
|
587 ;; Compile each block.
|
|
|
588 (setq branch-idx 0)
|
|
|
589 (while blocks
|
|
|
590 (if (null (car blocks))
|
|
|
591 ;; This block is empty.
|
|
|
592 (setq empty-block-indexes (cons branch-idx empty-block-indexes)
|
|
|
593 block-unconditional-jump t)
|
|
|
594 ;; This block is not empty.
|
|
|
595 (ccl-embed-data (- ccl-current-ic jump-table-head-address)
|
|
|
596 (+ jump-table-head-address branch-idx))
|
|
|
597 (setq block-unconditional-jump (ccl-compile-1 (car blocks)))
|
|
|
598 (if (not block-unconditional-jump)
|
|
|
599 (progn
|
|
|
600 ;; Jump address of the end of branches are embedded later.
|
|
|
601 ;; For the moment, just remember where to embed them.
|
|
|
602 (setq block-tail-addresses
|
|
|
603 (cons ccl-current-ic block-tail-addresses))
|
|
|
604 (ccl-embed-code 'jump 0 0))))
|
|
|
605 (setq branch-idx (1+ branch-idx))
|
|
|
606 (setq blocks (cdr blocks)))
|
|
|
607 (if (not block-unconditional-jump)
|
|
|
608 ;; We don't need jump code at the end of the last block.
|
|
|
609 (setq block-tail-addresses (cdr block-tail-addresses)
|
|
|
610 ccl-current-ic (1- ccl-current-ic)))
|
|
|
611 ;; Embed jump address at the tailing jump commands of blocks.
|
|
|
612 (while block-tail-addresses
|
|
|
613 (ccl-embed-current-address (car block-tail-addresses))
|
|
|
614 (setq block-tail-addresses (cdr block-tail-addresses)))
|
|
|
615 ;; For empty blocks, make entries in the jump table point directly here.
|
|
|
616 (while empty-block-indexes
|
|
|
617 (ccl-embed-data (- ccl-current-ic jump-table-head-address)
|
|
|
618 (+ jump-table-head-address (car empty-block-indexes)))
|
|
|
619 (setq empty-block-indexes (cdr empty-block-indexes))))
|
|
|
620 ;; Branch command ends by unconditional jump if RRR is out of range.
|
|
|
621 nil)
|
|
|
622
|
|
|
623 ;; Compile LOOP statement.
|
|
|
624 (defun ccl-compile-loop (cmd)
|
|
|
625 (if (< (length cmd) 2)
|
|
|
626 (error "CCL: Invalid number of arguments: %s" cmd))
|
|
|
627 (let* ((ccl-loop-head ccl-current-ic)
|
|
|
628 (ccl-breaks nil)
|
|
|
629 unconditional-jump)
|
|
|
630 (setq cmd (cdr cmd))
|
|
|
631 (if cmd
|
|
|
632 (progn
|
|
|
633 (setq unconditional-jump t)
|
|
|
634 (while cmd
|
|
|
635 (setq unconditional-jump
|
|
|
636 (and (ccl-compile-1 (car cmd)) unconditional-jump))
|
|
|
637 (setq cmd (cdr cmd)))
|
|
|
638 (if (not ccl-breaks)
|
|
|
639 unconditional-jump
|
|
|
640 ;; Embed jump address for break statements encountered in
|
|
|
641 ;; this loop.
|
|
|
642 (while ccl-breaks
|
|
|
643 (ccl-embed-current-address (car ccl-breaks))
|
|
|
644 (setq ccl-breaks (cdr ccl-breaks))))
|
|
|
645 nil))))
|
|
|
646
|
|
|
647 ;; Compile BREAK statement.
|
|
|
648 (defun ccl-compile-break (cmd)
|
|
|
649 (if (/= (length cmd) 1)
|
|
|
650 (error "CCL: Invalid number of arguments: %s" cmd))
|
|
|
651 (if (null ccl-loop-head)
|
|
|
652 (error "CCL: No outer loop: %s" cmd))
|
|
|
653 (setq ccl-breaks (cons ccl-current-ic ccl-breaks))
|
|
|
654 (ccl-embed-code 'jump 0 0)
|
|
|
655 t)
|
|
|
656
|
|
|
657 ;; Compile REPEAT statement.
|
|
|
658 (defun ccl-compile-repeat (cmd)
|
|
|
659 (if (/= (length cmd) 1)
|
|
|
660 (error "CCL: Invalid number of arguments: %s" cmd))
|
|
|
661 (if (null ccl-loop-head)
|
|
|
662 (error "CCL: No outer loop: %s" cmd))
|
|
|
663 (ccl-embed-code 'jump 0 ccl-loop-head)
|
|
|
664 t)
|
|
|
665
|
|
|
666 ;; Compile WRITE-REPEAT statement.
|
|
|
667 (defun ccl-compile-write-repeat (cmd)
|
|
|
668 (if (/= (length cmd) 2)
|
|
|
669 (error "CCL: Invalid number of arguments: %s" cmd))
|
|
|
670 (if (null ccl-loop-head)
|
|
|
671 (error "CCL: No outer loop: %s" cmd))
|
|
|
672 (let ((arg (nth 1 cmd)))
|
|
|
673 (cond ((integer-or-char-p arg)
|
|
|
674 (ccl-embed-code 'write-const-jump 0 ccl-loop-head)
|
|
|
675 (ccl-embed-data arg))
|
|
|
676 ((stringp arg)
|
|
|
677 (setq arg (encode-coding-string arg 'binary))
|
|
|
678 (let ((len (length arg)))
|
|
|
679 (ccl-embed-code 'write-string-jump 0 ccl-loop-head)
|
|
|
680 (ccl-embed-data len)
|
|
|
681 (ccl-embed-string len arg)))
|
|
|
682 (t
|
|
|
683 (ccl-check-register arg cmd)
|
|
|
684 (ccl-embed-code 'write-register-jump arg ccl-loop-head))))
|
|
|
685 t)
|
|
|
686
|
|
|
687 ;; Compile WRITE-READ-REPEAT statement.
|
|
|
688 (defun ccl-compile-write-read-repeat (cmd)
|
|
|
689 (if (or (< (length cmd) 2) (> (length cmd) 3))
|
|
|
690 (error "CCL: Invalid number of arguments: %s" cmd))
|
|
|
691 (if (null ccl-loop-head)
|
|
|
692 (error "CCL: No outer loop: %s" cmd))
|
|
|
693 (let ((rrr (ccl-check-register (nth 1 cmd) cmd))
|
|
|
694 (arg (nth 2 cmd)))
|
|
|
695 (cond ((null arg)
|
|
|
696 (ccl-embed-code 'write-register-read-jump rrr ccl-loop-head))
|
|
|
697 ((integer-or-char-p arg)
|
|
|
698 (ccl-embed-code 'write-const-read-jump rrr arg ccl-loop-head))
|
|
|
699 ((vectorp arg)
|
|
|
700 (let ((len (length arg))
|
|
|
701 (i 0))
|
|
|
702 (ccl-embed-code 'write-array-read-jump rrr ccl-loop-head)
|
|
|
703 (ccl-embed-data len)
|
|
|
704 (while (< i len)
|
|
|
705 (ccl-embed-data (aref arg i))
|
|
|
706 (setq i (1+ i)))))
|
|
|
707 (t
|
|
|
708 (error "CCL: Invalid argument %s: %s" arg cmd)))
|
|
|
709 (ccl-embed-code 'read-jump rrr ccl-loop-head))
|
|
|
710 t)
|
|
|
711
|
|
|
712 ;; Compile READ statement.
|
|
|
713 (defun ccl-compile-read (cmd)
|
|
|
714 (if (< (length cmd) 2)
|
|
|
715 (error "CCL: Invalid number of arguments: %s" cmd))
|
|
|
716 (let* ((args (cdr cmd))
|
|
|
717 (i (1- (length args))))
|
|
|
718 (while args
|
|
|
719 (let ((rrr (ccl-check-register (car args) cmd)))
|
|
|
720 (ccl-embed-code 'read-register rrr i)
|
|
|
721 (setq args (cdr args) i (1- i)))))
|
|
|
722 nil)
|
|
|
723
|
|
|
724 ;; Compile READ-IF statement.
|
|
|
725 (defun ccl-compile-read-if (cmd)
|
|
|
726 (ccl-compile-if cmd 'read))
|
|
|
727
|
|
|
728 ;; Compile WRITE statement.
|
|
|
729 (defun ccl-compile-write (cmd)
|
|
|
730 (if (< (length cmd) 2)
|
|
|
731 (error "CCL: Invalid number of arguments: %s" cmd))
|
|
|
732 (let ((rrr (nth 1 cmd)))
|
|
|
733 (cond ((integer-or-char-p rrr)
|
|
|
734 (ccl-embed-code 'write-const-string 0 rrr))
|
|
|
735 ((stringp rrr)
|
|
|
736 (ccl-compile-write-string rrr))
|
|
|
737 ((and (symbolp rrr) (vectorp (nth 2 cmd)))
|
|
|
738 (ccl-check-register rrr cmd)
|
|
|
739 ;; CMD has the form `(write REG ARRAY)'.
|
|
|
740 (let* ((arg (nth 2 cmd))
|
|
|
741 (len (length arg))
|
|
|
742 (i 0))
|
|
|
743 (ccl-embed-code 'write-array rrr len)
|
|
|
744 (while (< i len)
|
|
|
745 (if (not (integer-or-char-p (aref arg i)))
|
|
|
746 (error "CCL: Invalid argument %s: %s" arg cmd))
|
|
|
747 (ccl-embed-data (aref arg i))
|
|
|
748 (setq i (1+ i)))))
|
|
|
749
|
|
|
750 ((symbolp rrr)
|
|
|
751 ;; CMD has the form `(write REG ...)'.
|
|
|
752 (let* ((args (cdr cmd))
|
|
|
753 (i (1- (length args))))
|
|
|
754 (while args
|
|
|
755 (setq rrr (ccl-check-register (car args) cmd))
|
|
|
756 (ccl-embed-code 'write-register rrr i)
|
|
|
757 (setq args (cdr args) i (1- i)))))
|
|
|
758
|
|
|
759 ((listp rrr)
|
|
|
760 ;; CMD has the form `(write (LEFT OP RIGHT))'.
|
|
|
761 (let ((left (car rrr))
|
|
|
762 (op (get (nth 1 rrr) 'ccl-arith-code))
|
|
|
763 (right (nth 2 rrr)))
|
|
|
764 (if (listp left)
|
|
|
765 (progn
|
|
|
766 ;; RRR has the form `((EXPR OP2 ARG) OP RIGHT)'.
|
|
|
767 ;; Compile the first term as `(r7 = (EXPR OP2 ARG))'.
|
|
|
768 (ccl-compile-expression 'r7 left)
|
|
|
769 (setq left 'r7)))
|
|
|
770 ;; Now RRR has the form `(ARG OP RIGHT)'.
|
|
|
771 (if (integer-or-char-p right)
|
|
|
772 (progn
|
|
|
773 (ccl-embed-code 'write-expr-const 0 (ash op 3) left)
|
|
|
774 (ccl-embed-data right))
|
|
|
775 (ccl-check-register right rrr)
|
|
|
776 (ccl-embed-code 'write-expr-register 0
|
|
|
777 (logior (ash op 3)
|
|
|
778 (get right 'ccl-register-number))))))
|
|
|
779
|
|
|
780 (t
|
|
|
781 (error "CCL: Invalid argument: %s" cmd))))
|
|
|
782 nil)
|
|
|
783
|
|
|
784 ;; Compile CALL statement.
|
|
|
785 (defun ccl-compile-call (cmd)
|
|
|
786 (if (/= (length cmd) 2)
|
|
|
787 (error "CCL: Invalid number of arguments: %s" cmd))
|
|
|
788 (if (not (symbolp (nth 1 cmd)))
|
|
|
789 (error "CCL: Subroutine should be a symbol: %s" cmd))
|
|
|
790 (ccl-embed-code 'call 1 0)
|
|
|
791 (ccl-embed-symbol (nth 1 cmd) 'ccl-program-idx)
|
|
|
792 nil)
|
|
|
793
|
|
|
794 ;; Compile END statement.
|
|
|
795 (defun ccl-compile-end (cmd)
|
|
|
796 (if (/= (length cmd) 1)
|
|
|
797 (error "CCL: Invalid number of arguments: %s" cmd))
|
|
|
798 (ccl-embed-code 'end 0 0)
|
|
|
799 t)
|
|
|
800
|
|
|
801 ;; Compile read-multibyte-character
|
|
|
802 (defun ccl-compile-read-multibyte-character (cmd)
|
|
|
803 (if (/= (length cmd) 3)
|
|
|
804 (error "CCL: Invalid number of arguments: %s" cmd))
|
|
|
805 (let ((RRR (nth 1 cmd))
|
|
|
806 (rrr (nth 2 cmd)))
|
|
|
807 (ccl-check-register rrr cmd)
|
|
|
808 (ccl-check-register RRR cmd)
|
|
|
809 (ccl-embed-extended-command 'read-multibyte-character rrr RRR 0))
|
|
|
810 nil)
|
|
|
811
|
|
|
812 ;; Compile write-multibyte-character
|
|
|
813 (defun ccl-compile-write-multibyte-character (cmd)
|
|
|
814 (if (/= (length cmd) 3)
|
|
|
815 (error "CCL: Invalid number of arguments: %s" cmd))
|
|
|
816 (let ((RRR (nth 1 cmd))
|
|
|
817 (rrr (nth 2 cmd)))
|
|
|
818 (ccl-check-register rrr cmd)
|
|
|
819 (ccl-check-register RRR cmd)
|
|
|
820 (ccl-embed-extended-command 'write-multibyte-character rrr RRR 0))
|
|
|
821 nil)
|
|
|
822
|
|
|
823 ;; Compile translate-character
|
|
|
824 (defun ccl-compile-translate-character (cmd)
|
|
|
825 (if (/= (length cmd) 4)
|
|
|
826 (error "CCL: Invalid number of arguments: %s" cmd))
|
|
|
827 (let ((Rrr (nth 1 cmd))
|
|
|
828 (RRR (nth 2 cmd))
|
|
|
829 (rrr (nth 3 cmd)))
|
|
|
830 (ccl-check-register rrr cmd)
|
|
|
831 (ccl-check-register RRR cmd)
|
|
|
832 (cond ((and (symbolp Rrr) (not (get Rrr 'ccl-register-number)))
|
|
|
833 (ccl-embed-extended-command 'translate-character-const-tbl
|
|
|
834 rrr RRR 0)
|
|
|
835 (ccl-embed-symbol Rrr 'translation-table-id))
|
|
|
836 (t
|
|
|
837 (ccl-check-register Rrr cmd)
|
|
|
838 (ccl-embed-extended-command 'translate-character rrr RRR Rrr))))
|
|
|
839 nil)
|
|
|
840
|
|
|
841 ;; Compile mule-to-unicode
|
|
|
842 (defun ccl-compile-mule-to-unicode (cmd)
|
|
|
843 (if (/= (length cmd) 3)
|
|
|
844 (error "CCL: Invalid number of arguments: %s" cmd))
|
|
|
845 (let ((RRR (nth 1 cmd))
|
|
|
846 (rrr (nth 2 cmd)))
|
|
|
847 (ccl-check-register RRR cmd)
|
|
|
848 (ccl-check-register rrr cmd)
|
|
|
849 (ccl-embed-extended-command 'mule-to-unicode RRR rrr 0))
|
|
|
850 nil)
|
|
|
851
|
|
|
852 ;; Given a Unicode code point in register rrr, write the charset ID of the
|
|
|
853 ;; corresponding character in RRR, and the Mule-CCL form of its code in rrr.
|
|
|
854 (defun ccl-compile-unicode-to-mule (cmd)
|
|
|
855 (if (/= (length cmd) 3)
|
|
|
856 (error "CCL: Invalid number of arguments: %s" cmd))
|
|
|
857 (let ((rrr (nth 1 cmd))
|
|
|
858 (RRR (nth 2 cmd)))
|
|
|
859 (ccl-check-register rrr cmd)
|
|
|
860 (ccl-check-register RRR cmd)
|
|
|
861 (ccl-embed-extended-command 'unicode-to-mule rrr RRR 0))
|
|
|
862 nil)
|
|
|
863
|
|
|
864 ;; Compile lookup-integer
|
|
|
865 (defun ccl-compile-lookup-integer (cmd)
|
|
|
866 (if (/= (length cmd) 4)
|
|
|
867 (error "CCL: Invalid number of arguments: %s" cmd))
|
|
|
868 (let ((Rrr (nth 1 cmd))
|
|
|
869 (RRR (nth 2 cmd))
|
|
|
870 (rrr (nth 3 cmd)))
|
|
|
871 (ccl-check-register RRR cmd)
|
|
|
872 (ccl-check-register rrr cmd)
|
|
|
873 (cond ((and (symbolp Rrr) (not (get Rrr 'ccl-register-number)))
|
|
|
874 (ccl-embed-extended-command 'lookup-int-const-tbl
|
|
|
875 rrr RRR 0)
|
|
|
876 (ccl-embed-symbol Rrr 'translation-hash-table-id))
|
|
|
877 (t
|
|
|
878 (error "CCL: non-constant table: %s" cmd)
|
|
|
879 ;; not implemented:
|
|
|
880 (ccl-check-register Rrr cmd)
|
|
|
881 (ccl-embed-extended-command 'lookup-int rrr RRR 0))))
|
|
|
882 nil)
|
|
|
883
|
|
|
884 ;; Compile lookup-character
|
|
|
885 (defun ccl-compile-lookup-character (cmd)
|
|
|
886 (if (/= (length cmd) 4)
|
|
|
887 (error "CCL: Invalid number of arguments: %s" cmd))
|
|
|
888 (let ((Rrr (nth 1 cmd))
|
|
|
889 (RRR (nth 2 cmd))
|
|
|
890 (rrr (nth 3 cmd)))
|
|
|
891 (ccl-check-register RRR cmd)
|
|
|
892 (ccl-check-register rrr cmd)
|
|
|
893 (cond ((and (symbolp Rrr) (not (get Rrr 'ccl-register-number)))
|
|
|
894 (ccl-embed-extended-command 'lookup-char-const-tbl
|
|
|
895 rrr RRR 0)
|
|
|
896 (ccl-embed-symbol Rrr 'translation-hash-table-id))
|
|
|
897 (t
|
|
|
898 (error "CCL: non-constant table: %s" cmd)
|
|
|
899 ;; not implemented:
|
|
|
900 (ccl-check-register Rrr cmd)
|
|
|
901 (ccl-embed-extended-command 'lookup-char rrr RRR 0))))
|
|
|
902 nil)
|
|
|
903
|
|
|
904 (defun ccl-compile-iterate-multiple-map (cmd)
|
|
|
905 (ccl-compile-multiple-map-function 'iterate-multiple-map cmd)
|
|
|
906 nil)
|
|
|
907
|
|
|
908 (defun ccl-compile-map-multiple (cmd)
|
|
|
909 (if (/= (length cmd) 4)
|
|
|
910 (error "CCL: Invalid number of arguments: %s" cmd))
|
|
|
911 (let (func arg)
|
|
|
912 (setq func
|
|
|
913 (lambda (arg mp)
|
|
|
914 (let ((len 0) result add)
|
|
|
915 (while arg
|
|
|
916 (if (consp (car arg))
|
|
|
917 (setq add (funcall func (car arg) t)
|
|
|
918 result (append result add)
|
|
|
919 add (+ (- (car add)) 1))
|
|
|
920 (setq result
|
|
|
921 (append result
|
|
|
922 (list (car arg)))
|
|
|
923 add 1))
|
|
|
924 (setq arg (cdr arg)
|
|
|
925 len (+ len add)))
|
|
|
926 (if mp
|
|
|
927 (cons (- len) result)
|
|
|
928 result))))
|
|
|
929 (setq arg (append (list (nth 0 cmd) (nth 1 cmd) (nth 2 cmd))
|
|
|
930 (funcall func (nth 3 cmd) nil)))
|
|
|
931 (ccl-compile-multiple-map-function 'map-multiple arg))
|
|
|
932 nil)
|
|
|
933
|
|
|
934 (defun ccl-compile-map-single (cmd)
|
|
|
935 (if (/= (length cmd) 4)
|
|
|
936 (error "CCL: Invalid number of arguments: %s" cmd))
|
|
|
937 (let ((RRR (nth 1 cmd))
|
|
|
938 (rrr (nth 2 cmd))
|
|
|
939 (map (nth 3 cmd)))
|
|
|
940 (ccl-check-register rrr cmd)
|
|
|
941 (ccl-check-register RRR cmd)
|
|
|
942 (ccl-embed-extended-command 'map-single rrr RRR 0)
|
|
|
943 (cond ((symbolp map)
|
|
|
944 (if (get map 'code-conversion-map)
|
|
|
945 (ccl-embed-symbol map 'code-conversion-map-id)
|
|
|
946 (error "CCL: Invalid map: %s" map)))
|
|
|
947 (t
|
|
|
948 (error "CCL: Invalid type of arguments: %s" cmd))))
|
|
|
949 nil)
|
|
|
950
|
|
|
951 (defun ccl-compile-multiple-map-function (command cmd)
|
|
|
952 (if (< (length cmd) 4)
|
|
|
953 (error "CCL: Invalid number of arguments: %s" cmd))
|
|
|
954 (let ((RRR (nth 1 cmd))
|
|
|
955 (rrr (nth 2 cmd))
|
|
|
956 (args (nthcdr 3 cmd))
|
|
|
957 map)
|
|
|
958 (ccl-check-register rrr cmd)
|
|
|
959 (ccl-check-register RRR cmd)
|
|
|
960 (ccl-embed-extended-command command rrr RRR 0)
|
|
|
961 (ccl-embed-data (length args))
|
|
|
962 (while args
|
|
|
963 (setq map (car args))
|
|
|
964 (cond ((symbolp map)
|
|
|
965 (if (get map 'code-conversion-map)
|
|
|
966 (ccl-embed-symbol map 'code-conversion-map-id)
|
|
|
967 (error "CCL: Invalid map: %s" map)))
|
|
|
968 ((numberp map)
|
|
|
969 (ccl-embed-data map))
|
|
|
970 (t
|
|
|
971 (error "CCL: Invalid type of arguments: %s" cmd)))
|
|
|
972 (setq args (cdr args)))))
|
|
|
973
|
|
|
974
|
|
|
975 ;;; CCL dump staffs
|
|
|
976
|
|
|
977 ;; To avoid byte-compiler warning.
|
|
|
978 (defvar ccl-code)
|
|
|
979
|
|
|
980 ;;;###autoload
|
|
|
981 (defun ccl-dump (ccl-code)
|
|
|
982 "Disassemble compiled CCL-CODE."
|
|
|
983 (let ((len (length ccl-code))
|
|
|
984 (buffer-mag (aref ccl-code 0)))
|
|
|
985 (cond ((= buffer-mag 0)
|
|
|
986 (insert "Don't output anything.\n"))
|
|
|
987 ((= buffer-mag 1)
|
|
|
988 (insert "Out-buffer must be as large as in-buffer.\n"))
|
|
|
989 (t
|
|
|
990 (insert
|
|
|
991 (format "Out-buffer must be %d times bigger than in-buffer.\n"
|
|
|
992 buffer-mag))))
|
|
|
993 (insert "Main-body:\n")
|
|
|
994 (setq ccl-current-ic 2)
|
|
|
995 (if (> (aref ccl-code 1) 0)
|
|
|
996 (progn
|
|
|
997 (while (< ccl-current-ic (aref ccl-code 1))
|
|
|
998 (ccl-dump-1))
|
|
|
999 (insert "At EOF:\n")))
|
|
|
1000 (while (< ccl-current-ic len)
|
|
|
1001 (ccl-dump-1))
|
|
|
1002 ))
|
|
|
1003
|
|
|
1004 ;; Return a CCL code in `ccl-code' at `ccl-current-ic'.
|
|
|
1005 (defun ccl-get-next-code ()
|
|
|
1006 (prog1
|
|
|
1007 (aref ccl-code ccl-current-ic)
|
|
|
1008 (setq ccl-current-ic (1+ ccl-current-ic))))
|
|
|
1009
|
|
|
1010 (defun ccl-dump-1 ()
|
|
|
1011 (let* ((code (ccl-get-next-code))
|
|
|
1012 (cmd (aref ccl-code-table (logand code 31)))
|
|
|
1013 (rrr (ash (logand code 255) -5))
|
|
|
1014 (cc (ash code -8)))
|
|
|
1015 (insert (format "%5d:[%s] " (1- ccl-current-ic) cmd))
|
|
|
1016 (funcall (get cmd 'ccl-dump-function) rrr cc)))
|
|
|
1017
|
|
|
1018 (defun ccl-dump-set-register (rrr cc)
|
|
|
1019 (insert (format "r%d = r%d\n" rrr cc)))
|
|
|
1020
|
|
|
1021 (defun ccl-dump-set-short-const (rrr cc)
|
|
|
1022 (insert (format "r%d = %d\n" rrr cc)))
|
|
|
1023
|
|
|
1024 (defun ccl-dump-set-const (rrr ignore)
|
|
|
1025 (insert (format "r%d = %d\n" rrr (ccl-get-next-code))))
|
|
|
1026
|
|
|
1027 (defun ccl-dump-set-array (rrr cc)
|
|
|
1028 (let ((rrr2 (logand cc 7))
|
|
|
1029 (len (ash cc -3))
|
|
|
1030 (i 0))
|
|
|
1031 (insert (format "r%d = array[r%d] of length %d\n\t"
|
|
|
1032 rrr rrr2 len))
|
|
|
1033 (while (< i len)
|
|
|
1034 (insert (format "%d " (ccl-get-next-code)))
|
|
|
1035 (setq i (1+ i)))
|
|
|
1036 (insert "\n")))
|
|
|
1037
|
|
|
1038 (defun ccl-dump-jump (ignore cc &optional address)
|
|
|
1039 (insert (format "jump to %d(" (+ (or address ccl-current-ic) cc)))
|
|
|
1040 (if (>= cc 0)
|
|
|
1041 (insert "+"))
|
|
|
1042 (insert (format "%d)\n" (1+ cc))))
|
|
|
1043
|
|
|
1044 (defun ccl-dump-jump-cond (rrr cc)
|
|
|
1045 (insert (format "if (r%d == 0), " rrr))
|
|
|
1046 (ccl-dump-jump nil cc))
|
|
|
1047
|
|
|
1048 (defun ccl-dump-write-register-jump (rrr cc)
|
|
|
1049 (insert (format "write r%d, " rrr))
|
|
|
1050 (ccl-dump-jump nil cc))
|
|
|
1051
|
|
|
1052 (defun ccl-dump-write-register-read-jump (rrr cc)
|
|
|
1053 (insert (format "write r%d, read r%d, " rrr rrr))
|
|
|
1054 (ccl-dump-jump nil cc)
|
|
|
1055 (ccl-get-next-code) ; Skip dummy READ-JUMP
|
|
|
1056 )
|
|
|
1057
|
|
|
1058 (defun ccl-extract-arith-op (cc)
|
|
|
1059 (aref ccl-arith-table (ash cc -6)))
|
|
|
1060
|
|
|
1061 (defun ccl-dump-write-expr-const (ignore cc)
|
|
|
1062 (insert (format "write (r%d %s %d)\n"
|
|
|
1063 (logand cc 7)
|
|
|
1064 (ccl-extract-arith-op cc)
|
|
|
1065 (ccl-get-next-code))))
|
|
|
1066
|
|
|
1067 (defun ccl-dump-write-expr-register (ignore cc)
|
|
|
1068 (insert (format "write (r%d %s r%d)\n"
|
|
|
1069 (logand cc 7)
|
|
|
1070 (ccl-extract-arith-op cc)
|
|
|
1071 (logand (ash cc -3) 7))))
|
|
|
1072
|
|
|
1073 (defun ccl-dump-insert-char (cc)
|
|
|
1074 (cond ((= cc ?\t) (insert " \"^I\""))
|
|
|
1075 ((= cc ?\n) (insert " \"^J\""))
|
|
|
1076 (t (insert (format " \"%c\"" cc)))))
|
|
|
1077
|
|
|
1078 (defun ccl-dump-write-const-jump (ignore cc)
|
|
|
1079 (let ((address ccl-current-ic))
|
|
|
1080 (insert "write char")
|
|
|
1081 (ccl-dump-insert-char (ccl-get-next-code))
|
|
|
1082 (insert ", ")
|
|
|
1083 (ccl-dump-jump nil cc address)))
|
|
|
1084
|
|
|
1085 (defun ccl-dump-write-const-read-jump (rrr cc)
|
|
|
1086 (let ((address ccl-current-ic))
|
|
|
1087 (insert "write char")
|
|
|
1088 (ccl-dump-insert-char (ccl-get-next-code))
|
|
|
1089 (insert (format ", read r%d, " rrr))
|
|
|
1090 (ccl-dump-jump cc address)
|
|
|
1091 (ccl-get-next-code) ; Skip dummy READ-JUMP
|
|
|
1092 ))
|
|
|
1093
|
|
|
1094 (defun ccl-dump-write-string-jump (ignore cc)
|
|
|
1095 (let ((address ccl-current-ic)
|
|
|
1096 (len (ccl-get-next-code))
|
|
|
1097 (i 0))
|
|
|
1098 (insert "write \"")
|
|
|
1099 (while (< i len)
|
|
|
1100 (let ((code (ccl-get-next-code)))
|
|
|
1101 (insert (ash code -16))
|
|
|
1102 (if (< (1+ i) len) (insert (logand (ash code -8) 255)))
|
|
|
1103 (if (< (+ i 2) len) (insert (logand code 255))))
|
|
|
1104 (setq i (+ i 3)))
|
|
|
1105 (insert "\", ")
|
|
|
1106 (ccl-dump-jump nil cc address)))
|
|
|
1107
|
|
|
1108 (defun ccl-dump-write-array-read-jump (rrr cc)
|
|
|
1109 (let ((address ccl-current-ic)
|
|
|
1110 (len (ccl-get-next-code))
|
|
|
1111 (i 0))
|
|
|
1112 (insert (format "write array[r%d] of length %d,\n\t" rrr len))
|
|
|
1113 (while (< i len)
|
|
|
1114 (ccl-dump-insert-char (ccl-get-next-code))
|
|
|
1115 (setq i (1+ i)))
|
|
|
1116 (insert (format "\n\tthen read r%d, " rrr))
|
|
|
1117 (ccl-dump-jump nil cc address)
|
|
|
1118 (ccl-get-next-code) ; Skip dummy READ-JUMP.
|
|
|
1119 ))
|
|
|
1120
|
|
|
1121 (defun ccl-dump-read-jump (rrr cc)
|
|
|
1122 (insert (format "read r%d, " rrr))
|
|
|
1123 (ccl-dump-jump nil cc))
|
|
|
1124
|
|
|
1125 (defun ccl-dump-branch (rrr len)
|
|
|
1126 (let ((jump-table-head ccl-current-ic)
|
|
|
1127 (i 0))
|
|
|
1128 (insert (format "jump to array[r%d] of length %d\n\t" rrr len))
|
|
|
1129 (while (<= i len)
|
|
|
1130 (insert (format "%d " (+ jump-table-head (ccl-get-next-code))))
|
|
|
1131 (setq i (1+ i)))
|
|
|
1132 (insert "\n")))
|
|
|
1133
|
|
|
1134 (defun ccl-dump-read-register (rrr cc)
|
|
|
1135 (insert (format "read r%d (%d remaining)\n" rrr cc)))
|
|
|
1136
|
|
|
1137 (defun ccl-dump-read-branch (rrr len)
|
|
|
1138 (insert (format "read r%d, " rrr))
|
|
|
1139 (ccl-dump-branch rrr len))
|
|
|
1140
|
|
|
1141 (defun ccl-dump-write-register (rrr cc)
|
|
|
1142 (insert (format "write r%d (%d remaining)\n" rrr cc)))
|
|
|
1143
|
|
|
1144 (defun ccl-dump-call (ignore cc)
|
|
|
1145 (insert (format "call subroutine #%d\n" cc)))
|
|
|
1146
|
|
|
1147 (defun ccl-dump-write-const-string (rrr cc)
|
|
|
1148 (if (= rrr 0)
|
|
|
1149 (progn
|
|
|
1150 (insert "write char")
|
|
|
1151 (ccl-dump-insert-char cc)
|
|
|
1152 (newline))
|
|
|
1153 (let ((len cc)
|
|
|
1154 (i 0))
|
|
|
1155 (insert "write \"")
|
|
|
1156 (while (< i len)
|
|
|
1157 (let ((code (ccl-get-next-code)))
|
|
|
1158 (insert (format "%c" (lsh code -16)))
|
|
|
1159 (if (< (1+ i) len)
|
|
|
1160 (insert (format "%c" (logand (lsh code -8) 255))))
|
|
|
1161 (if (< (+ i 2) len)
|
|
|
1162 (insert (format "%c" (logand code 255))))
|
|
|
1163 (setq i (+ i 3))))
|
|
|
1164 (insert "\"\n"))))
|
|
|
1165
|
|
|
1166 (defun ccl-dump-write-array (rrr cc)
|
|
|
1167 (let ((i 0))
|
|
|
1168 (insert (format "write array[r%d] of length %d\n\t" rrr cc))
|
|
|
1169 (while (< i cc)
|
|
|
1170 (ccl-dump-insert-char (ccl-get-next-code))
|
|
|
1171 (setq i (1+ i)))
|
|
|
1172 (insert "\n")))
|
|
|
1173
|
|
|
1174 (defun ccl-dump-end (&rest ignore)
|
|
|
1175 (insert "end\n"))
|
|
|
1176
|
|
|
1177 (defun ccl-dump-set-assign-expr-const (rrr cc)
|
|
|
1178 (insert (format "r%d %s= %d\n"
|
|
|
1179 rrr
|
|
|
1180 (ccl-extract-arith-op cc)
|
|
|
1181 (ccl-get-next-code))))
|
|
|
1182
|
|
|
1183 (defun ccl-dump-set-assign-expr-register (rrr cc)
|
|
|
1184 (insert (format "r%d %s= r%d\n"
|
|
|
1185 rrr
|
|
|
1186 (ccl-extract-arith-op cc)
|
|
|
1187 (logand cc 7))))
|
|
|
1188
|
|
|
1189 (defun ccl-dump-set-expr-const (rrr cc)
|
|
|
1190 (insert (format "r%d = r%d %s %d\n"
|
|
|
1191 rrr
|
|
|
1192 (logand cc 7)
|
|
|
1193 (ccl-extract-arith-op cc)
|
|
|
1194 (ccl-get-next-code))))
|
|
|
1195
|
|
|
1196 (defun ccl-dump-set-expr-register (rrr cc)
|
|
|
1197 (insert (format "r%d = r%d %s r%d\n"
|
|
|
1198 rrr
|
|
|
1199 (logand cc 7)
|
|
|
1200 (ccl-extract-arith-op cc)
|
|
|
1201 (logand (ash cc -3) 7))))
|
|
|
1202
|
|
|
1203 (defun ccl-dump-jump-cond-expr-const (rrr cc)
|
|
|
1204 (let ((address ccl-current-ic))
|
|
|
1205 (insert (format "if !(r%d %s %d), "
|
|
|
1206 rrr
|
|
|
1207 (aref ccl-arith-table (ccl-get-next-code))
|
|
|
1208 (ccl-get-next-code)))
|
|
|
1209 (ccl-dump-jump nil cc address)))
|
|
|
1210
|
|
|
1211 (defun ccl-dump-jump-cond-expr-register (rrr cc)
|
|
|
1212 (let ((address ccl-current-ic))
|
|
|
1213 (insert (format "if !(r%d %s r%d), "
|
|
|
1214 rrr
|
|
|
1215 (aref ccl-arith-table (ccl-get-next-code))
|
|
|
1216 (ccl-get-next-code)))
|
|
|
1217 (ccl-dump-jump nil cc address)))
|
|
|
1218
|
|
|
1219 (defun ccl-dump-read-jump-cond-expr-const (rrr cc)
|
|
|
1220 (insert (format "read r%d, " rrr))
|
|
|
1221 (ccl-dump-jump-cond-expr-const rrr cc))
|
|
|
1222
|
|
|
1223 (defun ccl-dump-read-jump-cond-expr-register (rrr cc)
|
|
|
1224 (insert (format "read r%d, " rrr))
|
|
|
1225 (ccl-dump-jump-cond-expr-register rrr cc))
|
|
|
1226
|
|
|
1227 (defun ccl-dump-binary (ccl-code)
|
|
|
1228 (let ((len (length ccl-code))
|
|
|
1229 (i 2))
|
|
|
1230 (while (< i len)
|
|
|
1231 (let ((code (aref ccl-code i))
|
|
|
1232 (j 27))
|
|
|
1233 (while (>= j 0)
|
|
|
1234 (insert (if (= (logand code (ash 1 j)) 0) ?0 ?1))
|
|
|
1235 (setq j (1- j)))
|
|
|
1236 (setq code (logand code 31))
|
|
|
1237 (if (< code (length ccl-code-table))
|
|
|
1238 (insert (format ":%s" (aref ccl-code-table code))))
|
|
|
1239 (insert "\n"))
|
|
|
1240 (setq i (1+ i)))))
|
|
|
1241
|
|
|
1242 (defun ccl-dump-ex-cmd (rrr cc)
|
|
|
1243 (let* ((RRR (logand cc #x7))
|
|
|
1244 (Rrr (logand (ash cc -3) #x7))
|
|
|
1245 (ex-op (aref ccl-extended-code-table (logand (ash cc -6) #x3fff))))
|
|
|
1246 (insert (format "<%s> " ex-op))
|
|
|
1247 (funcall (get ex-op 'ccl-dump-function) rrr RRR Rrr)))
|
|
|
1248
|
|
|
1249 (defun ccl-dump-read-multibyte-character (rrr RRR Rrr)
|
|
|
1250 (insert (format "read-multibyte-character r%d r%d\n" RRR rrr)))
|
|
|
1251
|
|
|
1252 (defun ccl-dump-write-multibyte-character (rrr RRR Rrr)
|
|
|
1253 (insert (format "write-multibyte-character r%d r%d\n" RRR rrr)))
|
|
|
1254
|
|
|
1255 (defun ccl-dump-translate-character (rrr RRR Rrr)
|
|
|
1256 (insert (format "translation table(r%d) r%d r%d\n" Rrr RRR rrr)))
|
|
|
1257
|
|
|
1258 (defun ccl-dump-translate-character-const-tbl (rrr RRR Rrr)
|
|
|
1259 (let ((tbl (ccl-get-next-code)))
|
|
|
1260 (insert (format "translation table(%S) r%d r%d\n" tbl RRR rrr))))
|
|
|
1261
|
|
|
1262 (defun ccl-dump-lookup-int-const-tbl (rrr RRR Rrr)
|
|
|
1263 (let ((tbl (ccl-get-next-code)))
|
|
|
1264 (insert (format "hash table(%S) r%d r%d\n" tbl RRR rrr))))
|
|
|
1265
|
|
|
1266 (defun ccl-dump-lookup-char-const-tbl (rrr RRR Rrr)
|
|
|
1267 (let ((tbl (ccl-get-next-code)))
|
|
|
1268 (insert (format "hash table(%S) r%d r%d\n" tbl RRR rrr))))
|
|
|
1269
|
|
|
1270 (defun ccl-dump-mule-to-unicode (rrr RRR Rrr)
|
|
|
1271 (insert (format "change chars in r%d and r%d to unicode\n" RRR rrr)))
|
|
|
1272
|
|
|
1273 (defun ccl-dump-unicode-to-mule (rrr RRR Rrr)
|
|
|
1274 (insert (format "converter UCS code %d to a Mule char\n" rrr)))
|
|
|
1275
|
|
|
1276 (defun ccl-dump-iterate-multiple-map (rrr RRR Rrr)
|
|
|
1277 (let ((notbl (ccl-get-next-code))
|
|
|
1278 (i 0) id)
|
|
|
1279 (insert (format "iterate-multiple-map r%d r%d\n" RRR rrr))
|
|
|
1280 (insert (format "\tnumber of maps is %d .\n\t [" notbl))
|
|
|
1281 (while (< i notbl)
|
|
|
1282 (setq id (ccl-get-next-code))
|
|
|
1283 (insert (format "%S" id))
|
|
|
1284 (setq i (1+ i)))
|
|
|
1285 (insert "]\n")))
|
|
|
1286
|
|
|
1287 (defun ccl-dump-map-multiple (rrr RRR Rrr)
|
|
|
1288 (let ((notbl (ccl-get-next-code))
|
|
|
1289 (i 0) id)
|
|
|
1290 (insert (format "map-multiple r%d r%d\n" RRR rrr))
|
|
|
1291 (insert (format "\tnumber of maps and separators is %d\n\t [" notbl))
|
|
|
1292 (while (< i notbl)
|
|
|
1293 (setq id (ccl-get-next-code))
|
|
|
1294 (if (= id -1)
|
|
|
1295 (insert "]\n\t [")
|
|
|
1296 (insert (format "%S " id)))
|
|
|
1297 (setq i (1+ i)))
|
|
|
1298 (insert "]\n")))
|
|
|
1299
|
|
|
1300 (defun ccl-dump-map-single (rrr RRR Rrr)
|
|
|
1301 (let ((id (ccl-get-next-code)))
|
|
|
1302 (insert (format "map-single r%d r%d map(%S)\n" RRR rrr id))))
|
|
|
1303
|
|
|
1304
|
|
|
1305 ;; CCL emulation staffs
|
|
|
1306
|
|
|
1307 ;; Not yet implemented.
|
|
|
1308
|
|
|
1309 ;; Auto-loaded functions.
|
|
|
1310
|
|
|
1311 ;;;###autoload
|
|
|
1312 (defmacro declare-ccl-program (name &optional vector)
|
|
|
1313 "Declare NAME as a name of CCL program.
|
|
|
1314
|
|
|
1315 This macro exists for backward compatibility. In the old version of
|
|
|
1316 Emacs, to compile a CCL program which calls another CCL program not
|
|
|
1317 yet defined, it must be declared as a CCL program in advance. But,
|
|
|
1318 now CCL program names are resolved not at compile time but before
|
|
|
1319 execution.
|
|
|
1320
|
|
|
1321 Optional arg VECTOR is a compiled CCL code of the CCL program."
|
|
|
1322 `(put ',name 'ccl-program-idx (register-ccl-program ',name ,vector)))
|
|
|
1323
|
|
|
1324 ;;;###autoload
|
|
|
1325 (defmacro define-ccl-program (name ccl-program &optional doc)
|
|
|
1326 "Set NAME to be the compiled CCL code of CCL-PROGRAM.
|
|
|
1327
|
|
|
1328 CCL-PROGRAM has this form:
|
|
|
1329 (BUFFER_MAGNIFICATION
|
|
|
1330 CCL_MAIN_CODE
|
|
|
1331 [ CCL_EOF_CODE ])
|
|
|
1332
|
|
|
1333 BUFFER_MAGNIFICATION is an integer value specifying the approximate
|
|
|
1334 output buffer magnification size compared with the bytes of input data
|
|
|
1335 text. If the value is zero, the CCL program can't execute `read' and
|
|
|
1336 `write' commands.
|
|
|
1337
|
|
|
1338 CCL_MAIN_CODE and CCL_EOF_CODE are CCL program codes. CCL_MAIN_CODE is
|
|
|
1339 executed first. If there are no more input data when a `read' command is
|
|
|
1340 executed in CCL_MAIN_CODE, CCL_EOF_CODE is executed. If CCL_MAIN_CODE is
|
|
|
1341 terminated, CCL_EOF_CODE is not executed.
|
|
|
1342
|
|
|
1343 Here's the syntax of CCL program code in BNF notation. The lines starting
|
|
|
1344 with two semicolons (and optional leading spaces) describe the semantics.
|
|
|
1345
|
|
|
1346 CCL_MAIN_CODE := CCL_BLOCK
|
|
|
1347
|
|
|
1348 CCL_EOF_CODE := CCL_BLOCK
|
|
|
1349
|
|
|
1350 CCL_BLOCK := STATEMENT | (STATEMENT [STATEMENT ...])
|
|
|
1351
|
|
|
1352 STATEMENT :=
|
|
|
1353 SET | IF | BRANCH | LOOP | REPEAT | BREAK | READ | WRITE | CALL
|
|
|
1354 | TRANSLATE | MAP | LOOKUP | END
|
|
|
1355
|
|
|
1356 SET := (REG = EXPRESSION)
|
|
|
1357 | (REG ASSIGNMENT_OPERATOR EXPRESSION)
|
|
|
1358 ;; The following form is the same as (r0 = INT-OR-CHAR).
|
|
|
1359 | INT-OR-CHAR
|
|
|
1360
|
|
|
1361 EXPRESSION := ARG | (EXPRESSION OPERATOR ARG)
|
|
|
1362
|
|
|
1363 ;; Evaluate EXPRESSION. If the result is nonzero, execute
|
|
|
1364 ;; CCL_BLOCK_0. Otherwise, execute CCL_BLOCK_1.
|
|
|
1365 IF := (if EXPRESSION CCL_BLOCK_0 [CCL_BLOCK_1])
|
|
|
1366
|
|
|
1367 ;; Evaluate EXPRESSION. Provided that the result is N, execute
|
|
|
1368 ;; CCL_BLOCK_N.
|
|
|
1369 BRANCH := (branch EXPRESSION CCL_BLOCK_0 [CCL_BLOCK_1 ...])
|
|
|
1370
|
|
|
1371 ;; Execute STATEMENTs until (break) or (end) is executed.
|
|
|
1372 LOOP := (loop STATEMENT [STATEMENT ...])
|
|
|
1373
|
|
|
1374 ;; Terminate the innermost loop.
|
|
|
1375 BREAK := (break)
|
|
|
1376
|
|
|
1377 REPEAT :=
|
|
|
1378 ;; Jump to the head of the innermost loop.
|
|
|
1379 (repeat)
|
|
|
1380 ;; Same as: ((write [REG | INT-OR-CHAR | string])
|
|
|
1381 ;; (repeat))
|
|
|
1382 | (write-repeat [REG | INT-OR-CHAR | string])
|
|
|
1383 ;; Same as: ((write REG [ARRAY])
|
|
|
1384 ;; (read REG)
|
|
|
1385 ;; (repeat))
|
|
|
1386 | (write-read-repeat REG [ARRAY])
|
|
|
1387 ;; Same as: ((write INT-OR-CHAR)
|
|
|
1388 ;; (read REG)
|
|
|
1389 ;; (repeat))
|
|
|
1390 | (write-read-repeat REG INT-OR-CHAR)
|
|
|
1391
|
|
|
1392 READ := ;; Set REG_0 to a byte read from the input text, set REG_1
|
|
|
1393 ;; to the next byte read, and so on. Note that \"byte\" here means
|
|
|
1394 ;; \"some octet from XEmacs' internal representation\", which may
|
|
|
1395 ;; not be that useful to you when non-ASCII characters are involved.
|
|
|
1396 ;;
|
|
|
1397 ;; Yes, this is exactly the opposite of what (write ...) does.
|
|
|
1398 (read REG_0 [REG_1 ...])
|
|
|
1399 ;; Same as: ((read REG)
|
|
|
1400 ;; (if (REG OPERATOR ARG) CCL_BLOCK_0 CCL_BLOCK_1))
|
|
|
1401 | (read-if (REG OPERATOR ARG) CCL_BLOCK_0 [CCL_BLOCK_1])
|
|
|
1402 ;; Same as: ((read REG)
|
|
|
1403 ;; (branch REG CCL_BLOCK_0 [CCL_BLOCK_1 ...]))
|
|
|
1404 | (read-branch REG CCL_BLOCK_0 [CCL_BLOCK_1 ...])
|
|
|
1405 ;; Read a character from the input text, splitting it into its
|
|
|
1406 ;; multibyte representation. Set REG_0 to the charset ID of the
|
|
|
1407 ;; character, and set REG_1 to the code point of the character. If
|
|
|
1408 ;; the dimension of charset is two, set REG_1 to ((CODE0 << 7) |
|
|
|
1409 ;; CODE1), where CODE0 is the first code point and CODE1 is the
|
|
|
1410 ;; second code point.
|
|
|
1411 | (read-multibyte-character REG_0 REG_1)
|
|
|
1412
|
|
|
1413 WRITE :=
|
|
|
1414 ;; Write REG_0, REG_1, ... to the output buffer. If REG_N is
|
|
|
1415 ;; a multibyte character, write the corresponding multibyte
|
|
|
1416 ;; representation.
|
|
|
1417 (write REG_0 [REG_1 ...])
|
|
|
1418 ;; Same as: ((r7 = EXPRESSION)
|
|
|
1419 ;; (write r7))
|
|
|
1420 | (write EXPRESSION)
|
|
|
1421 ;; Write the value of `INT-OR-CHAR' to the output buffer. If it
|
|
|
1422 ;; is a multibyte character, write the corresponding multibyte
|
|
|
1423 ;; representation.
|
|
|
1424 | (write INT-OR-CHAR)
|
|
|
1425 ;; Write the byte sequence of `string' as is to the output
|
|
|
1426 ;; buffer. It is encoded by binary coding system, thus,
|
|
|
1427 ;; by this operation, you cannot write multibyte string
|
|
|
1428 ;; as it is.
|
|
|
1429 | (write string)
|
|
|
1430 ;; Same as: (write string)
|
|
|
1431 | string
|
|
|
1432 ;; Provided that the value of REG is N, write Nth element of
|
|
|
1433 ;; ARRAY to the output buffer. If it is a multibyte
|
|
|
1434 ;; character, write the corresponding multibyte
|
|
|
1435 ;; representation.
|
|
|
1436 | (write REG ARRAY)
|
|
|
1437 ;; Write a multibyte representation of a character whose
|
|
|
1438 ;; charset ID is REG_0 and code point is REG_1. If the
|
|
|
1439 ;; dimension of the charset is two, REG_1 should be ((CODE0 <<
|
|
|
1440 ;; 7) | CODE1), where CODE0 is the first code point and CODE1
|
|
|
1441 ;; is the second code point of the character.
|
|
|
1442 | (write-multibyte-character REG_0 REG_1)
|
|
|
1443
|
|
|
1444 ;; Call CCL program whose name is ccl-program-name.
|
|
|
1445 CALL := (call ccl-program-name)
|
|
|
1446
|
|
|
1447 TRANSLATE := ;; Not implemented under XEmacs, except mule-to-unicode and
|
|
|
1448 ;; unicode-to-mule.
|
|
|
1449 (translate-character REG(table) REG(charset) REG(codepoint))
|
|
|
1450 | (translate-character SYMBOL REG(charset) REG(codepoint))
|
|
|
1451 | (mule-to-unicode REG(charset) REG(codepoint))
|
|
|
1452 | (unicode-to-mule REG(unicode,code) REG(CHARSET))
|
|
|
1453
|
|
|
1454 LOOKUP :=
|
|
|
1455 (lookup-character SYMBOL REG(charset) REG(codepoint))
|
|
|
1456 | (lookup-integer SYMBOL REG(integer))
|
|
|
1457 ;; SYMBOL refers to a table defined by `define-hash-translation-table'.
|
|
|
1458
|
|
|
1459 MAP :=
|
|
|
1460 (iterate-multiple-map REG REG MAP-IDs)
|
|
|
1461 | (map-multiple REG REG (MAP-SET))
|
|
|
1462 | (map-single REG REG MAP-ID)
|
|
|
1463 MAP-IDs := MAP-ID ...
|
|
|
1464 MAP-SET := MAP-IDs | (MAP-IDs) MAP-SET
|
|
|
1465 MAP-ID := INT-OR-CHAR
|
|
|
1466
|
|
|
1467 ;; Terminate the CCL program.
|
|
|
1468 END := (end)
|
|
|
1469
|
|
|
1470 ;; CCL registers. These can contain any integer value. As r7 is used by the
|
|
|
1471 ;; CCL interpreter itself, its value can change unexpectedly.
|
|
|
1472 REG := r0 | r1 | r2 | r3 | r4 | r5 | r6 | r7
|
|
|
1473
|
|
|
1474 ARG := REG | INT-OR-CHAR
|
|
|
1475
|
|
|
1476 OPERATOR :=
|
|
|
1477 ;; Normal arithmetical operators (same meaning as C code).
|
|
|
1478 + | - | * | / | %
|
|
|
1479
|
|
|
1480 ;; Bitwise operators (same meaning as C code)
|
|
|
1481 | & | `|' | ^
|
|
|
1482
|
|
|
1483 ;; Shifting operators (same meaning as C code)
|
|
|
1484 | << | >>
|
|
|
1485
|
|
|
1486 ;; (REG = ARG_0 <8 ARG_1) means:
|
|
|
1487 ;; (REG = ((ARG_0 << 8) | ARG_1))
|
|
|
1488 | <8
|
|
|
1489
|
|
|
1490 ;; (REG = ARG_0 >8 ARG_1) means:
|
|
|
1491 ;; ((REG = (ARG_0 >> 8))
|
|
|
1492 ;; (r7 = (ARG_0 & 255)))
|
|
|
1493 | >8
|
|
|
1494
|
|
|
1495 ;; (REG = ARG_0 // ARG_1) means:
|
|
|
1496 ;; ((REG = (ARG_0 / ARG_1))
|
|
|
1497 ;; (r7 = (ARG_0 % ARG_1)))
|
|
|
1498 | //
|
|
|
1499
|
|
|
1500 ;; Normal comparing operators (same meaning as C code)
|
|
|
1501 | < | > | == | <= | >= | !=
|
|
|
1502
|
|
|
1503 ;; If ARG_0 and ARG_1 are higher and lower byte of Shift-JIS
|
|
|
1504 ;; code, and CHAR is the corresponding JISX0208 character,
|
|
|
1505 ;; (REG = ARG_0 de-sjis ARG_1) means:
|
|
|
1506 ;; ((REG = CODE0)
|
|
|
1507 ;; (r7 = CODE1))
|
|
|
1508 ;; where CODE0 is the first code point of CHAR, CODE1 is the
|
|
|
1509 ;; second code point of CHAR.
|
|
|
1510 | de-sjis
|
|
|
1511
|
|
|
1512 ;; If ARG_0 and ARG_1 are the first and second code point of
|
|
|
1513 ;; JISX0208 character CHAR, and SJIS is the correponding
|
|
|
1514 ;; Shift-JIS code,
|
|
|
1515 ;; (REG = ARG_0 en-sjis ARG_1) means:
|
|
|
1516 ;; ((REG = HIGH)
|
|
|
1517 ;; (r7 = LOW))
|
|
|
1518 ;; where HIGH is the higher byte of SJIS, LOW is the lower
|
|
|
1519 ;; byte of SJIS.
|
|
|
1520 | en-sjis
|
|
|
1521
|
|
|
1522 ASSIGNMENT_OPERATOR :=
|
|
|
1523 ;; Same meaning as C code
|
|
|
1524 += | -= | *= | /= | %= | &= | `|=' | ^= | <<= | >>=
|
|
|
1525
|
|
|
1526 ;; (REG <8= ARG) is the same as:
|
|
|
1527 ;; ((REG <<= 8)
|
|
|
1528 ;; (REG |= ARG))
|
|
|
1529 | <8=
|
|
|
1530
|
|
|
1531 ;; (REG >8= ARG) is the same as:
|
|
|
1532 ;; ((r7 = (REG & 255))
|
|
|
1533 ;; (REG >>= 8))
|
|
|
1534
|
|
|
1535 ;; (REG //= ARG) is the same as:
|
|
|
1536 ;; ((r7 = (REG % ARG))
|
|
|
1537 ;; (REG /= ARG))
|
|
|
1538 | //=
|
|
|
1539
|
|
|
1540 ARRAY := `[' INT-OR-CHAR ... `]'
|
|
|
1541
|
|
|
1542 INT-OR-CHAR := integer | character
|
|
|
1543 "
|
|
|
1544 `(let ((prog ,(ccl-compile (eval ccl-program))))
|
|
|
1545 (defconst ,name prog ,doc)
|
|
|
1546 (put ',name 'ccl-program-idx (register-ccl-program ',name prog))
|
|
|
1547 nil))
|
|
|
1548
|
|
|
1549 ;;;###autoload
|
|
|
1550 (defmacro check-ccl-program (ccl-program &optional name)
|
|
|
1551 "Check validity of CCL-PROGRAM.
|
|
|
1552 If CCL-PROGRAM is a symbol denoting a CCL program, return
|
|
|
1553 CCL-PROGRAM, else return nil.
|
|
|
1554 If CCL-PROGRAM is a vector and optional arg NAME (symbol) is supplied,
|
|
|
1555 register CCL-PROGRAM by name NAME, and return NAME."
|
|
|
1556 `(if (ccl-program-p ,ccl-program)
|
|
|
1557 (if (vectorp ,ccl-program)
|
|
|
1558 (progn
|
|
|
1559 (register-ccl-program ,name ,ccl-program)
|
|
|
1560 ,name)
|
|
|
1561 ,ccl-program)))
|
|
|
1562
|
|
|
1563 (provide 'ccl)
|
|
|
1564
|
|
|
1565 ;; ccl.el ends here |
