From: morioka Date: Sun, 25 Oct 1998 12:13:38 +0000 (+0000) Subject: Divide mel-ccl. X-Git-Tag: flim-1_11_2~15 X-Git-Url: http://git.chise.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=7c4e78e82b2a25717f02c52ebae9917be5a5a540;p=elisp%2Fflim.git Divide mel-ccl. --- diff --git a/FLIM-ELS b/FLIM-ELS index f7d087b..933e162 100644 --- a/FLIM-ELS +++ b/FLIM-ELS @@ -21,7 +21,7 @@ (not (or (and (boundp 'MULE) MULE) (and (featurep 'xemacs) (< emacs-major-version 21)) ))) - (setq flim-modules (cons 'mel-ccl flim-modules)) + (setq flim-modules (cons 'mel-b-ccl (cons 'mel-q-ccl flim-modules))) ) ;;; FLIM-ELS ends here diff --git a/mel-b-ccl.el b/mel-b-ccl.el new file mode 100644 index 0000000..b01650c --- /dev/null +++ b/mel-b-ccl.el @@ -0,0 +1,413 @@ +;;; mel-b-ccl.el: CCL based encoder/decoder of Base64 + +;; Copyright (C) 1998 Tanaka Akira + +;; Author: Tanaka Akira +;; Created: 1998/9/17 +;; Keywords: MIME, Base64 + +;; This file is part of FLIM (Faithful Library about Internet Message). + +;; This program is free software; you can redistribute it and/or +;; modify it under the terms of the GNU General Public License as +;; published by the Free Software Foundation; either version 2, or (at +;; your option) any later version. + +;; This program is distributed in the hope that it will be useful, but +;; WITHOUT ANY WARRANTY; without even the implied warranty of +;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU +;; General Public License for more details. + +;; You should have received a copy of the GNU General Public License +;; along with GNU Emacs; see the file COPYING. If not, write to the +;; Free Software Foundation, Inc., 59 Temple Place - Suite 330, +;; Boston, MA 02111-1307, USA. + +;;; Code: + +(require 'ccl) +(require 'pccl) +(require 'mime-def) + + +;;; @ constants +;;; + +(eval-when-compile + +(defconst mel-ccl-4-table + '( 0 1 2 3)) + +(defconst mel-ccl-16-table + '( 0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15)) + +(defconst mel-ccl-64-table + '( 0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 + 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 + 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 + 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63)) + +(defconst mel-ccl-256-table + '( 0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 + 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 + 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 + 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 + 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 + 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 + 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 + 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 + 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 + 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 + 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 + 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 + 192 193 194 195 196 197 198 199 200 201 202 203 204 205 206 207 + 208 209 210 211 212 213 214 215 216 217 218 219 220 221 222 223 + 224 225 226 227 228 229 230 231 232 233 234 235 236 237 238 239 + 240 241 242 243 244 245 246 247 248 249 250 251 252 253 254 255)) + +(defconst mel-ccl-256-to-64-table + '(nil nil nil nil nil nil nil nil nil nil nil nil nil nil nil nil + nil nil nil nil nil nil nil nil nil nil nil nil nil nil nil nil + nil nil nil nil nil nil nil nil nil nil nil 62 nil nil nil 63 + 52 53 54 55 56 57 58 59 60 61 nil nil nil t nil nil + nil 0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 + 15 16 17 18 19 20 21 22 23 24 25 nil nil nil nil nil + nil 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 + 41 42 43 44 45 46 47 48 49 50 51 nil nil nil nil nil + nil nil nil nil nil nil nil nil nil nil nil nil nil nil nil nil + nil nil nil nil nil nil nil nil nil nil nil nil nil nil nil nil + nil nil nil nil nil nil nil nil nil nil nil nil nil nil nil nil + nil nil nil nil nil nil nil nil nil nil nil nil nil nil nil nil + nil nil nil nil nil nil nil nil nil nil nil nil nil nil nil nil + nil nil nil nil nil nil nil nil nil nil nil nil nil nil nil nil + nil nil nil nil nil nil nil nil nil nil nil nil nil nil nil nil + nil nil nil nil nil nil nil nil nil nil nil nil nil nil nil nil)) + +(defconst mel-ccl-64-to-256-table + (mapcar + 'char-int + "ABCDEFGHIJKLMNOPQRSTUVWXYZ\ +abcdefghijklmnopqrstuvwxyz\ +0123456789\ ++/")) + +) + + +;;; @ CCL programs +;;; + +(eval-when-compile + +(defun mel-ccl-decode-b-bit-ex (v) + (logior + (lsh (logand v (lsh 255 16)) -16) + (logand v (lsh 255 8)) + (lsh (logand v 255) 16))) + +(defconst mel-ccl-decode-b-0-table + (vconcat + (mapcar + (lambda (v) + (if (integerp v) + (mel-ccl-decode-b-bit-ex (lsh v 18)) + (lsh 1 24))) + mel-ccl-256-to-64-table))) + +(defconst mel-ccl-decode-b-1-table + (vconcat + (mapcar + (lambda (v) + (if (integerp v) + (mel-ccl-decode-b-bit-ex (lsh v 12)) + (lsh 1 25))) + mel-ccl-256-to-64-table))) + +(defconst mel-ccl-decode-b-2-table + (vconcat + (mapcar + (lambda (v) + (if (integerp v) + (mel-ccl-decode-b-bit-ex (lsh v 6)) + (lsh 1 26))) + mel-ccl-256-to-64-table))) + +(defconst mel-ccl-decode-b-3-table + (vconcat + (mapcar + (lambda (v) + (if (integerp v) + (mel-ccl-decode-b-bit-ex v) + (lsh 1 27))) + mel-ccl-256-to-64-table))) + +) + +(define-ccl-program mel-ccl-decode-b + `(1 + (loop + (read r0 r1 r2 r3) + (r4 = r0 ,mel-ccl-decode-b-0-table) + (r5 = r1 ,mel-ccl-decode-b-1-table) + (r4 |= r5) + (r5 = r2 ,mel-ccl-decode-b-2-table) + (r4 |= r5) + (r5 = r3 ,mel-ccl-decode-b-3-table) + (r4 |= r5) + (if (r4 & ,(lognot (1- (lsh 1 24)))) + ((loop + (if (r4 & ,(lsh 1 24)) + ((r0 = r1) (r1 = r2) (r2 = r3) (read r3) + (r4 >>= 1) (r4 &= ,(logior (lsh 7 24))) + (r5 = r3 ,mel-ccl-decode-b-3-table) + (r4 |= r5) + (repeat)) + (break))) + (loop + (if (r4 & ,(lsh 1 25)) + ((r1 = r2) (r2 = r3) (read r3) + (r4 >>= 1) (r4 &= ,(logior (lsh 7 24))) + (r5 = r3 ,mel-ccl-decode-b-3-table) + (r4 |= r5) + (repeat)) + (break))) + (loop + (if (r2 != ?=) + (if (r4 & ,(lsh 1 26)) + ((r2 = r3) (read r3) + (r4 >>= 1) (r4 &= ,(logior (lsh 7 24))) + (r5 = r3 ,mel-ccl-decode-b-3-table) + (r4 |= r5) + (repeat)) + ((r6 = 0) + (break))) + ((r6 = 1) + (break)))) + (loop + (if (r3 != ?=) + (if (r4 & ,(lsh 1 27)) + ((read r3) + (r4 = r3 ,mel-ccl-decode-b-3-table) + (repeat)) + (break)) + ((r6 |= 2) + (break)))) + (r4 = r0 ,mel-ccl-decode-b-0-table) + (r5 = r1 ,mel-ccl-decode-b-1-table) + (r4 |= r5) + (branch + r6 + ;; BBBB + ((r5 = r2 ,mel-ccl-decode-b-2-table) + (r4 |= r5) + (r5 = r3 ,mel-ccl-decode-b-3-table) + (r4 |= r5) + (r4 >8= 0) + (write r7) + (r4 >8= 0) + (write r7) + (write-repeat r4)) + ;; error: BB=B + ((write (r4 & 255)) + (end)) + ;; BBB= + ((r5 = r2 ,mel-ccl-decode-b-2-table) + (r4 |= r5) + (r4 >8= 0) + (write r7) + (write (r4 & 255)) + (end) ; Excessive (end) is workaround for XEmacs 21.0. + ; Without this, "AAA=" is converted to "^@^@^@". + (end)) + ;; BB== + ((write (r4 & 255)) + (end)))) + ((r4 >8= 0) + (write r7) + (r4 >8= 0) + (write r7) + (write-repeat r4)))))) + +(eval-when-compile + +;; Generated CCL program works not properly on 20.2 because CCL_EOF_BLOCK +;; is not executed. +(defun mel-ccl-encode-base64-generic (&optional quantums-per-line output-crlf terminate-with-newline) + `(2 + ((r3 = 0) + (loop + (r2 = 0) + (read-branch + r1 + ,@(mapcar + (lambda (r1) + `((write ,(nth (lsh r1 -2) mel-ccl-64-to-256-table)) + (r0 = ,(logand r1 3)))) + mel-ccl-256-table)) + (r2 = 1) + (read-branch + r1 + ,@(mapcar + (lambda (r1) + `((write r0 ,(vconcat + (mapcar + (lambda (r0) + (nth (logior (lsh r0 4) + (lsh r1 -4)) + mel-ccl-64-to-256-table)) + mel-ccl-4-table))) + (r0 = ,(logand r1 15)))) + mel-ccl-256-table)) + (r2 = 2) + (read-branch + r1 + ,@(mapcar + (lambda (r1) + `((write r0 ,(vconcat + (mapcar + (lambda (r0) + (nth (logior (lsh r0 2) + (lsh r1 -6)) + mel-ccl-64-to-256-table)) + mel-ccl-16-table))))) + mel-ccl-256-table)) + (r1 &= 63) + (write r1 ,(vconcat + (mapcar + (lambda (r1) + (nth r1 mel-ccl-64-to-256-table)) + mel-ccl-64-table))) + (r3 += 1) + ,@(when quantums-per-line + `((if (r3 == ,quantums-per-line) + ((write ,(if output-crlf "\r\n" "\n")) + (r3 = 0))))) + (repeat))) + (branch + r2 + ,(if terminate-with-newline + `(if (r3 > 0) (write ,(if output-crlf "\r\n" "\n"))) + `(r0 = 0)) + ((write r0 ,(vconcat + (mapcar + (lambda (r0) + (nth (lsh r0 4) mel-ccl-64-to-256-table)) + mel-ccl-4-table))) + (write ,(if terminate-with-newline + (if output-crlf "==\r\n" "==\n") + "=="))) + ((write r0 ,(vconcat + (mapcar + (lambda (r0) + (nth (lsh r0 2) mel-ccl-64-to-256-table)) + mel-ccl-16-table))) + (write ,(if terminate-with-newline + (if output-crlf "=\r\n" "=\n") + "=")))) + )) +) + +(define-ccl-program mel-ccl-encode-b + (mel-ccl-encode-base64-generic)) + +;; 19 * 4 = 76 +(define-ccl-program mel-ccl-encode-base64-crlf-crlf + (mel-ccl-encode-base64-generic 19 t)) + +(define-ccl-program mel-ccl-encode-base64-crlf-lf + (mel-ccl-encode-base64-generic 19 nil)) + + +;;; @ coding system +;;; + +(make-ccl-coding-system + 'mel-ccl-b-rev ?B "MIME B-encoding (reversed)" + 'mel-ccl-encode-b 'mel-ccl-decode-b) + +(make-ccl-coding-system + 'mel-ccl-base64-crlf-rev + ?B "MIME Base64-encoding (reversed)" + 'mel-ccl-encode-base64-crlf-crlf + 'mel-ccl-decode-b) + +(make-ccl-coding-system + 'mel-ccl-base64-lf-rev + ?B "MIME Base64-encoding (LF encoding) (reversed)" + 'mel-ccl-encode-base64-crlf-lf + 'mel-ccl-decode-b) + + +;;; @ B +;;; + +(check-broken-facility ccl-execute-eof-block-on-decoding-some) + +(unless-broken ccl-execute-eof-block-on-decoding-some + + (defun base64-ccl-encode-string (string) + "Encode STRING with base64 encoding." + (decode-coding-string string 'mel-ccl-base64-lf-rev)) + + (defun base64-ccl-encode-region (start end) + "Encode region from START to END with base64 encoding." + (interactive "r") + (decode-coding-region start end 'mel-ccl-base64-lf-rev)) + + (defun base64-ccl-insert-encoded-file (filename) + "Encode contents of file FILENAME to base64, and insert the result." + (interactive (list (read-file-name "Insert encoded file: "))) + (let ((coding-system-for-read 'mel-ccl-base64-lf-rev)) + (insert-file-contents filename))) + + (mel-define-method-function (mime-encode-string string (nil "base64")) + 'base64-ccl-encode-string) + (mel-define-method-function (mime-encode-region start end (nil "base64")) + 'base64-ccl-encode-region) + (mel-define-method-function + (mime-insert-encoded-file filename (nil "base64")) + 'base64-ccl-insert-encoded-file) + + (mel-define-method-function (encoded-text-encode-string string (nil "B")) + 'base64-ccl-encode-string) + ) + +(defun base64-ccl-decode-string (string) + "Decode base64 encoded STRING" + (encode-coding-string string 'mel-ccl-b-rev)) + +(defun base64-ccl-decode-region (start end) + "Decode base64 encoded the region from START to END." + (interactive "r") + (encode-coding-region start end 'mel-ccl-b-rev)) + +(defun base64-ccl-write-decoded-region (start end filename) + "Decode the region from START to END and write out to FILENAME." + (interactive + (list (region-beginning) (region-end) + (read-file-name "Write decoded region to file: "))) + (let ((coding-system-for-write 'mel-ccl-b-rev) + jka-compr-compression-info-list) + (write-region start end filename))) + +(mel-define-method-function (mime-decode-string string (nil "base64")) + 'base64-ccl-decode-string) +(mel-define-method-function (mime-decode-region start end (nil "base64")) + 'base64-ccl-decode-region) +(mel-define-method-function + (mime-write-decoded-region start end filename (nil "base64")) + 'base64-ccl-write-decoded-region) + +(mel-define-method encoded-text-decode-string (string (nil "B")) + (if (and (string-match B-encoded-text-regexp string) + (string= string (match-string 0 string))) + (base64-ccl-decode-string string) + (error "Invalid encoded-text %s" string))) + + +;;; @ end +;;; + +(provide 'mel-b-ccl) + +;;; mel-b-ccl.el ends here diff --git a/mel-ccl.el b/mel-ccl.el deleted file mode 100644 index 12b18e1..0000000 --- a/mel-ccl.el +++ /dev/null @@ -1,1352 +0,0 @@ -;;; mel-ccl.el: CCL based encoder/decoder of Base64, Quoted-Printable -;;; and Q-encoding - -;; Copyright (C) 1998 Tanaka Akira - -;; Author: Tanaka Akira -;; Created: 1998/9/17 -;; Keywords: MIME, Base64, Quoted-Printable, Q-encoding - -;; This file is part of FLIM (Faithful Library about Internet Message). - -;; This program is free software; you can redistribute it and/or -;; modify it under the terms of the GNU General Public License as -;; published by the Free Software Foundation; either version 2, or (at -;; your option) any later version. - -;; This program is distributed in the hope that it will be useful, but -;; WITHOUT ANY WARRANTY; without even the implied warranty of -;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU -;; General Public License for more details. - -;; You should have received a copy of the GNU General Public License -;; along with GNU Emacs; see the file COPYING. If not, write to the -;; Free Software Foundation, Inc., 59 Temple Place - Suite 330, -;; Boston, MA 02111-1307, USA. - -;;; Code: - -(require 'ccl) -(require 'pccl) -(require 'mime-def) - - -;;; @ constants -;;; - -(eval-when-compile - -(defconst mel-ccl-4-table - '( 0 1 2 3)) - -(defconst mel-ccl-16-table - '( 0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15)) - -(defconst mel-ccl-28-table - '( 0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 - 16 17 18 19 20 21 22 23 24 25 26 27)) - -(defconst mel-ccl-64-table - '( 0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 - 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 - 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 - 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63)) - -(defconst mel-ccl-256-table - '( 0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 - 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 - 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 - 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 - 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 - 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 - 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 - 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 - 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 - 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 - 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 - 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 - 192 193 194 195 196 197 198 199 200 201 202 203 204 205 206 207 - 208 209 210 211 212 213 214 215 216 217 218 219 220 221 222 223 - 224 225 226 227 228 229 230 231 232 233 234 235 236 237 238 239 - 240 241 242 243 244 245 246 247 248 249 250 251 252 253 254 255)) - -(defconst mel-ccl-256-to-16-table - '(nil nil nil nil nil nil nil nil nil nil nil nil nil nil nil nil - nil nil nil nil nil nil nil nil nil nil nil nil nil nil nil nil - nil nil nil nil nil nil nil nil nil nil nil nil nil nil nil nil - 0 1 2 3 4 5 6 7 8 9 nil nil nil nil nil nil - nil 10 11 12 13 14 15 nil nil nil nil nil nil nil nil nil - nil nil nil nil nil nil nil nil nil nil nil nil nil nil nil nil - nil nil nil nil nil nil nil nil nil nil nil nil nil nil nil nil - nil nil nil nil nil nil nil nil nil nil nil nil nil nil nil nil - nil nil nil nil nil nil nil nil nil nil nil nil nil nil nil nil - nil nil nil nil nil nil nil nil nil nil nil nil nil nil nil nil - nil nil nil nil nil nil nil nil nil nil nil nil nil nil nil nil - nil nil nil nil nil nil nil nil nil nil nil nil nil nil nil nil - nil nil nil nil nil nil nil nil nil nil nil nil nil nil nil nil - nil nil nil nil nil nil nil nil nil nil nil nil nil nil nil nil - nil nil nil nil nil nil nil nil nil nil nil nil nil nil nil nil - nil nil nil nil nil nil nil nil nil nil nil nil nil nil nil nil)) - -(defconst mel-ccl-16-to-256-table - (mapcar 'char-int "0123456789ABCDEF")) - -(defconst mel-ccl-high-table - (vconcat - (mapcar - (lambda (v) (nth (lsh v -4) mel-ccl-16-to-256-table)) - mel-ccl-256-table))) - -(defconst mel-ccl-low-table - (vconcat - (mapcar - (lambda (v) (nth (logand v 15) mel-ccl-16-to-256-table)) - mel-ccl-256-table))) - -(defconst mel-ccl-u-raw - (mapcar - 'char-int - "0123456789\ -ABCDEFGHIJKLMNOPQRSTUVWXYZ\ -abcdefghijklmnopqrstuvwxyz\ -!@#$%&'()*+,-./:;<>@[\\]^`{|}~")) - -(defconst mel-ccl-c-raw - (mapcar - 'char-int - "0123456789\ -ABCDEFGHIJKLMNOPQRSTUVWXYZ\ -abcdefghijklmnopqrstuvwxyz\ -!@#$%&'*+,-./:;<>@[]^`{|}~")) - -(defconst mel-ccl-p-raw - (mapcar - 'char-int - "0123456789\ -ABCDEFGHIJKLMNOPQRSTUVWXYZ\ -abcdefghijklmnopqrstuvwxyz\ -!*+-/")) - -(defconst mel-ccl-256-to-64-table - '(nil nil nil nil nil nil nil nil nil nil nil nil nil nil nil nil - nil nil nil nil nil nil nil nil nil nil nil nil nil nil nil nil - nil nil nil nil nil nil nil nil nil nil nil 62 nil nil nil 63 - 52 53 54 55 56 57 58 59 60 61 nil nil nil t nil nil - nil 0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 - 15 16 17 18 19 20 21 22 23 24 25 nil nil nil nil nil - nil 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 - 41 42 43 44 45 46 47 48 49 50 51 nil nil nil nil nil - nil nil nil nil nil nil nil nil nil nil nil nil nil nil nil nil - nil nil nil nil nil nil nil nil nil nil nil nil nil nil nil nil - nil nil nil nil nil nil nil nil nil nil nil nil nil nil nil nil - nil nil nil nil nil nil nil nil nil nil nil nil nil nil nil nil - nil nil nil nil nil nil nil nil nil nil nil nil nil nil nil nil - nil nil nil nil nil nil nil nil nil nil nil nil nil nil nil nil - nil nil nil nil nil nil nil nil nil nil nil nil nil nil nil nil - nil nil nil nil nil nil nil nil nil nil nil nil nil nil nil nil)) - -(defconst mel-ccl-64-to-256-table - (mapcar - 'char-int - "ABCDEFGHIJKLMNOPQRSTUVWXYZ\ -abcdefghijklmnopqrstuvwxyz\ -0123456789\ -+/")) - -(defconst mel-ccl-qp-table - [enc enc enc enc enc enc enc enc enc wsp lf enc enc cr enc enc - enc enc enc enc enc enc enc enc enc enc enc enc enc enc enc enc - wsp raw raw raw raw raw raw raw raw raw raw raw raw raw raw raw - raw raw raw raw raw raw raw raw raw raw raw raw raw enc raw raw - raw raw raw raw raw raw raw raw raw raw raw raw raw raw raw raw - raw raw raw raw raw raw raw raw raw raw raw raw raw raw raw raw - raw raw raw raw raw raw raw raw raw raw raw raw raw raw raw raw - raw raw raw raw raw raw raw raw raw raw raw raw raw raw raw enc - enc enc enc enc enc enc enc enc enc enc enc enc enc enc enc enc - enc enc enc enc enc enc enc enc enc enc enc enc enc enc enc enc - enc enc enc enc enc enc enc enc enc enc enc enc enc enc enc enc - enc enc enc enc enc enc enc enc enc enc enc enc enc enc enc enc - enc enc enc enc enc enc enc enc enc enc enc enc enc enc enc enc - enc enc enc enc enc enc enc enc enc enc enc enc enc enc enc enc - enc enc enc enc enc enc enc enc enc enc enc enc enc enc enc enc - enc enc enc enc enc enc enc enc enc enc enc enc enc enc enc enc]) - -) - - -;;; @ CCL programs -;;; - -;;; Q - -(define-ccl-program mel-ccl-decode-q - `(1 - ((loop - (read-branch - r0 - ,@(mapcar - (lambda (r0) - (cond - ((= r0 (char-int ?_)) - `(write-repeat ? )) - ((= r0 (char-int ?=)) - `((loop - (read-branch - r1 - ,@(mapcar - (lambda (v) - (if (integerp v) - `((r0 = ,v) (break)) - '(repeat))) - mel-ccl-256-to-16-table))) - (loop - (read-branch - r1 - ,@(mapcar - (lambda (v) - (if (integerp v) - `((write r0 ,(vconcat - (mapcar - (lambda (r0) - (logior (lsh r0 4) v)) - mel-ccl-16-table))) - (break)) - '(repeat))) - mel-ccl-256-to-16-table))) - (repeat))) - (t - `(write-repeat ,r0)))) - mel-ccl-256-table)))))) - -(eval-when-compile - -(defun mel-ccl-encode-q-generic (raw) - `(3 - (loop - (loop - (read-branch - r0 - ,@(mapcar - (lambda (r0) - (cond - ((= r0 32) `(write-repeat ?_)) - ((member r0 raw) `(write-repeat ,r0)) - (t '(break)))) - mel-ccl-256-table))) - (write ?=) - (write r0 ,mel-ccl-high-table) - (write r0 ,mel-ccl-low-table) - (repeat)))) - -;; On xemacs, generated program counts iso-8859-1 8bit character as 6bytes. -(defun mel-ccl-count-q-length (raw) - `(0 - ((r0 = 0) - (loop - (read-branch - r1 - ,@(mapcar - (lambda (r1) - (if (or (= r1 32) (member r1 raw)) - '((r0 += 1) (repeat)) - '((r0 += 3) (repeat)))) - mel-ccl-256-table)))))) - -) - -(define-ccl-program mel-ccl-encode-uq - (mel-ccl-encode-q-generic mel-ccl-u-raw)) -(define-ccl-program mel-ccl-encode-cq - (mel-ccl-encode-q-generic mel-ccl-c-raw)) -(define-ccl-program mel-ccl-encode-pq - (mel-ccl-encode-q-generic mel-ccl-p-raw)) - -(define-ccl-program mel-ccl-count-uq - (mel-ccl-count-q-length mel-ccl-u-raw)) -(define-ccl-program mel-ccl-count-cq - (mel-ccl-count-q-length mel-ccl-c-raw)) -(define-ccl-program mel-ccl-count-pq - (mel-ccl-count-q-length mel-ccl-p-raw)) - -;;; B/Base64 - -(eval-when-compile - -(defun mel-ccl-decode-b-bit-ex (v) - (logior - (lsh (logand v (lsh 255 16)) -16) - (logand v (lsh 255 8)) - (lsh (logand v 255) 16))) - -(defconst mel-ccl-decode-b-0-table - (vconcat - (mapcar - (lambda (v) - (if (integerp v) - (mel-ccl-decode-b-bit-ex (lsh v 18)) - (lsh 1 24))) - mel-ccl-256-to-64-table))) - -(defconst mel-ccl-decode-b-1-table - (vconcat - (mapcar - (lambda (v) - (if (integerp v) - (mel-ccl-decode-b-bit-ex (lsh v 12)) - (lsh 1 25))) - mel-ccl-256-to-64-table))) - -(defconst mel-ccl-decode-b-2-table - (vconcat - (mapcar - (lambda (v) - (if (integerp v) - (mel-ccl-decode-b-bit-ex (lsh v 6)) - (lsh 1 26))) - mel-ccl-256-to-64-table))) - -(defconst mel-ccl-decode-b-3-table - (vconcat - (mapcar - (lambda (v) - (if (integerp v) - (mel-ccl-decode-b-bit-ex v) - (lsh 1 27))) - mel-ccl-256-to-64-table))) - -) - -(define-ccl-program mel-ccl-decode-b - `(1 - (loop - (read r0 r1 r2 r3) - (r4 = r0 ,mel-ccl-decode-b-0-table) - (r5 = r1 ,mel-ccl-decode-b-1-table) - (r4 |= r5) - (r5 = r2 ,mel-ccl-decode-b-2-table) - (r4 |= r5) - (r5 = r3 ,mel-ccl-decode-b-3-table) - (r4 |= r5) - (if (r4 & ,(lognot (1- (lsh 1 24)))) - ((loop - (if (r4 & ,(lsh 1 24)) - ((r0 = r1) (r1 = r2) (r2 = r3) (read r3) - (r4 >>= 1) (r4 &= ,(logior (lsh 7 24))) - (r5 = r3 ,mel-ccl-decode-b-3-table) - (r4 |= r5) - (repeat)) - (break))) - (loop - (if (r4 & ,(lsh 1 25)) - ((r1 = r2) (r2 = r3) (read r3) - (r4 >>= 1) (r4 &= ,(logior (lsh 7 24))) - (r5 = r3 ,mel-ccl-decode-b-3-table) - (r4 |= r5) - (repeat)) - (break))) - (loop - (if (r2 != ?=) - (if (r4 & ,(lsh 1 26)) - ((r2 = r3) (read r3) - (r4 >>= 1) (r4 &= ,(logior (lsh 7 24))) - (r5 = r3 ,mel-ccl-decode-b-3-table) - (r4 |= r5) - (repeat)) - ((r6 = 0) - (break))) - ((r6 = 1) - (break)))) - (loop - (if (r3 != ?=) - (if (r4 & ,(lsh 1 27)) - ((read r3) - (r4 = r3 ,mel-ccl-decode-b-3-table) - (repeat)) - (break)) - ((r6 |= 2) - (break)))) - (r4 = r0 ,mel-ccl-decode-b-0-table) - (r5 = r1 ,mel-ccl-decode-b-1-table) - (r4 |= r5) - (branch - r6 - ;; BBBB - ((r5 = r2 ,mel-ccl-decode-b-2-table) - (r4 |= r5) - (r5 = r3 ,mel-ccl-decode-b-3-table) - (r4 |= r5) - (r4 >8= 0) - (write r7) - (r4 >8= 0) - (write r7) - (write-repeat r4)) - ;; error: BB=B - ((write (r4 & 255)) - (end)) - ;; BBB= - ((r5 = r2 ,mel-ccl-decode-b-2-table) - (r4 |= r5) - (r4 >8= 0) - (write r7) - (write (r4 & 255)) - (end) ; Excessive (end) is workaround for XEmacs 21.0. - ; Without this, "AAA=" is converted to "^@^@^@". - (end)) - ;; BB== - ((write (r4 & 255)) - (end)))) - ((r4 >8= 0) - (write r7) - (r4 >8= 0) - (write r7) - (write-repeat r4)))))) - -(eval-when-compile - -;; Generated CCL program works not properly on 20.2 because CCL_EOF_BLOCK -;; is not executed. -(defun mel-ccl-encode-base64-generic (&optional quantums-per-line output-crlf terminate-with-newline) - `(2 - ((r3 = 0) - (loop - (r2 = 0) - (read-branch - r1 - ,@(mapcar - (lambda (r1) - `((write ,(nth (lsh r1 -2) mel-ccl-64-to-256-table)) - (r0 = ,(logand r1 3)))) - mel-ccl-256-table)) - (r2 = 1) - (read-branch - r1 - ,@(mapcar - (lambda (r1) - `((write r0 ,(vconcat - (mapcar - (lambda (r0) - (nth (logior (lsh r0 4) - (lsh r1 -4)) - mel-ccl-64-to-256-table)) - mel-ccl-4-table))) - (r0 = ,(logand r1 15)))) - mel-ccl-256-table)) - (r2 = 2) - (read-branch - r1 - ,@(mapcar - (lambda (r1) - `((write r0 ,(vconcat - (mapcar - (lambda (r0) - (nth (logior (lsh r0 2) - (lsh r1 -6)) - mel-ccl-64-to-256-table)) - mel-ccl-16-table))))) - mel-ccl-256-table)) - (r1 &= 63) - (write r1 ,(vconcat - (mapcar - (lambda (r1) - (nth r1 mel-ccl-64-to-256-table)) - mel-ccl-64-table))) - (r3 += 1) - ,@(when quantums-per-line - `((if (r3 == ,quantums-per-line) - ((write ,(if output-crlf "\r\n" "\n")) - (r3 = 0))))) - (repeat))) - (branch - r2 - ,(if terminate-with-newline - `(if (r3 > 0) (write ,(if output-crlf "\r\n" "\n"))) - `(r0 = 0)) - ((write r0 ,(vconcat - (mapcar - (lambda (r0) - (nth (lsh r0 4) mel-ccl-64-to-256-table)) - mel-ccl-4-table))) - (write ,(if terminate-with-newline - (if output-crlf "==\r\n" "==\n") - "=="))) - ((write r0 ,(vconcat - (mapcar - (lambda (r0) - (nth (lsh r0 2) mel-ccl-64-to-256-table)) - mel-ccl-16-table))) - (write ,(if terminate-with-newline - (if output-crlf "=\r\n" "=\n") - "=")))) - )) -) - -(define-ccl-program mel-ccl-encode-b - (mel-ccl-encode-base64-generic)) - -;; 19 * 4 = 76 -(define-ccl-program mel-ccl-encode-base64-crlf-crlf - (mel-ccl-encode-base64-generic 19 t)) - -(define-ccl-program mel-ccl-encode-base64-crlf-lf - (mel-ccl-encode-base64-generic 19 nil)) - -;; Quoted-Printable - -(eval-when-compile - -(defun mel-ccl-try-to-read-crlf (input-crlf reg eof-reg cr-eof lf-eof crlf-eof succ fail-cr fail-lf fail-crlf) - (if input-crlf - `((,eof-reg = ,cr-eof) (read-if (,reg == ?\r) - ((,eof-reg = ,lf-eof) (read-if (,reg == ?\n) - ,succ - ,fail-lf)) - ,fail-cr)) - `((,eof-reg = ,crlf-eof) (read-if (,reg == ?\n) - ,succ - ,fail-crlf)))) - -;; Generated CCL program works not properly on 20.2 because CCL_EOF_BLOCK -;; is not executed. -(defun mel-ccl-encode-quoted-printable-generic (input-crlf output-crlf) - `(4 - ((r6 = 0) ; column - (r5 = 0) ; previous character is white space - (r4 = 0) - (read r0) - (loop ; r6 <= 75 - (loop - (loop - (branch - r0 - ,@(mapcar - (lambda (r0) - (let ((tmp (aref mel-ccl-qp-table r0))) - (cond - ((eq r0 (char-int ?F)) - `(if (r6 == 0) - ((r4 = 15) (read-if (r0 == ?r) - ((r4 = 16) (read-if (r0 == ?o) - ((r4 = 17) (read-if (r0 == ?m) - ((r4 = 18) (read-if (r0 == ? ) - ((r6 = 7) - (r5 = 1) - (write "=46rom ") - (r4 = 19) - (read r0) - (repeat)) - ((r6 = 4) - (write-repeat "From")))) - ((r6 = 3) - (write-repeat "Fro")))) - ((r6 = 2) - (write-repeat "Fr")))) - ((r6 = 1) - (write-repeat "F")))) - ((r3 = 0) (break)) ; RAW - )) - ((eq r0 (char-int ?.)) - `(if (r6 == 0) - ,(mel-ccl-try-to-read-crlf - input-crlf - 'r0 'r4 20 21 22 - `((write ,(if output-crlf "=2E\r\n" "=2E\n")) - (r4 = 23) - (read r0) - (repeat)) - '((r6 = 1) - (write-repeat ".")) - '((r6 = 4) - (write-repeat ".=0D")) - '((r6 = 1) - (write-repeat "."))) - ((r3 = 0) (break)) ; RAW - )) - ((eq tmp 'raw) '((r3 = 0) (break))) ; RAW - ((eq tmp 'enc) '((r3 = 1) (break))) ; ENC - ((eq tmp 'wsp) '((r3 = 2) (break))) ; WSP - ((eq tmp 'cr) (if input-crlf - '((r3 = 3) (break)) ; CR - '((r3 = 1) (break)))) ; ENC - ((eq tmp 'lf) (if input-crlf - '((r3 = 1) (break)) ; ENC - '((r3 = 3) (break)))) ; CRLF - ))) - mel-ccl-256-table))) - (branch - r3 - ;; r0:r3=RAW - (if (r6 < 75) - ((r6 += 1) - (r5 = 0) - (r4 = 1) - (write-read-repeat r0)) - (break)) - ;; r0:r3=ENC - ((r5 = 0) - (if (r6 < 73) - ((r6 += 3) - (write "=") - (write r0 ,mel-ccl-high-table) - (r4 = 2) - (write-read-repeat r0 ,mel-ccl-low-table)) - (if (r6 > 73) - ((r6 = 3) - (write ,(if output-crlf "=\r\n=" "=\n=")) - (write r0 ,mel-ccl-high-table) - (r4 = 3) - (write-read-repeat r0 ,mel-ccl-low-table)) - (break)))) - ;; r0:r3=WSP - ((r5 = 1) - (if (r6 < 75) - ((r6 += 1) - (r4 = 4) - (write-read-repeat r0)) - ((r6 = 1) - (write ,(if output-crlf "=\r\n" "=\n")) - (r4 = 5) - (write-read-repeat r0)))) - ;; r0:r3=CR/CRLF - ,(if input-crlf - ;; r0:r3=CR - `((if ((r6 > 73) & r5) - ((r6 = 0) - (r5 = 0) - (write ,(if output-crlf "=\r\n" "=\n")))) - (break)) - ;; r0:r3=CRLF - `(if r5 - ;; WSP ; r0:r3=CRLF - ((r5 = 0) - (r6 = 0) - (write ,(if output-crlf "=\r\n" "=\n")) - ,@(if output-crlf '((write ?\r)) '()) - (r4 = 0) - (write-read-repeat r0)) - ;; noWSP ; r0:r3=CRLF - ((r5 = 0) - (r6 = 0) - ,@(if output-crlf '((write ?\r)) '()) - (r4 = 0) - (write-read-repeat r0))) - ))) - ;; r0:r3={RAW,ENC,CR} - (loop - ,(funcall - (lambda (after-cr after-raw-enc) - (if input-crlf - `(if (r0 == ?\r) - ,after-cr - ,after-raw-enc) - after-raw-enc)) - ;; r0=\r:r3=CR - `((r4 = 6) - (read r0) - ;; CR:r3=CR r0 - (if (r0 == ?\n) - ;; CR:r3=CR r0=LF - (if r5 - ;; r5=WSP ; CR:r3=CR r0=LF - ((r6 = 0) - (r5 = 0) - (write ,(if output-crlf "=\r\n\r\n" "=\n\n")) - (r4 = 7) - (read r0) - (break)) - ;; r5=noWSP ; CR:r3=CR r0=LF - ((r6 = 0) - (r5 = 0) - (write ,(if output-crlf "\r\n" "\n")) - (r4 = 8) - (read r0) - (break))) - ;; CR:r3=CR r0=noLF - (if (r6 < 73) - ((r6 += 3) - (r5 = 0) - (write "=0D") - (break)) - (if (r6 == 73) - (if (r0 == ?\r) - ;; CR:r3=CR r0=CR - ((r4 = 9) - (read r0) - ;; CR:r3=CR CR r0 - (if (r0 == ?\n) - ;; CR:r3=CR CR LF - ((r6 = 0) - (r5 = 0) - (write ,(if output-crlf "=0D\r\n" "=0D\n")) - (r4 = 10) - (read r0) - (break)) - ;; CR:r3=CR CR noLF - ((r6 = 6) - (r5 = 0) - (write ,(if output-crlf "=\r\n=0D=0D" "=\n=0D=0D")) - (break)))) - ;; CR:r3=CR r0=noLFnorCR - ((r6 = 3) - (r5 = 0) - (write ,(if output-crlf "=\r\n=0D" "=\n=0D")) - (break))) - ((r6 = 3) - (r5 = 0) - (write ,(if output-crlf "=\r\n=0D" "=\n=0D")) - (break)))))) - (funcall - (lambda (after-newline after-cr-nolf after-nonewline) - (if input-crlf - ;; r0:r3={RAW,ENC} - `((r4 = 11) - (read r1) - ;; r0:r3={RAW,ENC} r1 - (if (r1 == ?\r) - ;; r0:r3={RAW,ENC} r1=CR - ((r4 = 12) - (read r1) - ;; r0:r3={RAW,ENC} CR r1 - (if (r1 == ?\n) - ;; r0:r3=RAW CR r1=LF - ,after-newline - ;; r0:r3=RAW CR r1=noLF - ,after-cr-nolf)) - ;; r0:r3={RAW,ENC} r1:noCR - ,after-nonewline)) - ;; r0:r3={RAW,ENC} - `((r4 = 11) - (read r1) - ;; r0:r3={RAW,ENC} r1 - (if (r1 == ?\n) - ;; r0:r3={RAW,ENC} r1=CRLF - ,after-newline - ;; r0:r3={RAW,ENC} r1:noCRLF - ,after-nonewline)))) - ;; r0:r3={RAW,ENC} CR r1=LF - ;; r0:r3={RAW,ENC} r1=CRLF - `((r6 = 0) - (r5 = 0) - (branch - r3 - ;; r0:r3=RAW CR r1=LF - ;; r0:r3=RAW r1=CRLF - ((write r0) - (write ,(if output-crlf "\r\n" "\n")) - (r4 = 13) - (read r0) - (break)) - ;; r0:r3=ENC CR r1=LF - ;; r0:r3=ENC r1=CRLF - ((write ?=) - (write r0 ,mel-ccl-high-table) - (write r0 ,mel-ccl-low-table) - (write ,(if output-crlf "\r\n" "\n")) - (r4 = 14) - (read r0) - (break)))) - ;; r0:r3={RAW,ENC} CR r1=noLF - `((branch - r3 - ;; r0:r3=RAW CR r1:noLF - ((r6 = 4) - (r5 = 0) - (write ,(if output-crlf "=\r\n" "=\n")) - (write r0) - (write "=0D") - (r0 = r1) - (break)) - ;; r0:r3=ENC CR r1:noLF - ((r6 = 6) - (r5 = 0) - (write ,(if output-crlf "=\r\n=" "=\n=")) - (write r0 ,mel-ccl-high-table) - (write r0 ,mel-ccl-low-table) - (write "=0D") - (r0 = r1) - (break)))) - ;; r0:r3={RAW,ENC} r1:noCR - ;; r0:r3={RAW,ENC} r1:noCRLF - `((branch - r3 - ;; r0:r3=RAW r1:noCR - ;; r0:r3=RAW r1:noCRLF - ((r6 = 1) - (r5 = 0) - (write ,(if output-crlf "=\r\n" "=\n")) - (write r0) - (r0 = r1) - (break)) - ;; r0:r3=ENC r1:noCR - ;; r0:r3=ENC r1:noCRLF - ((r6 = 3) - (r5 = 0) - (write ,(if output-crlf "=\r\n=" "=\n=")) - (write r0 ,mel-ccl-high-table) - (write r0 ,mel-ccl-low-table) - (r0 = r1) - (break))))))) - (repeat))) - ;; EOF - ( ;(write "[EOF:") (write r4 ,mel-ccl-high-table) (write r4 ,mel-ccl-low-table) (write "]") - (branch - r4 - ;; 0: (start) ; - (end) - ;; 1: RAW ; - (end) - ;; 2: r0:r3=ENC ; - (end) - ;; 3: SOFTBREAK r0:r3=ENC ; - (end) - ;; 4: r0:r3=WSP ; - ((write ,(if output-crlf "=\r\n" "=\n")) (end)) - ;; 5: SOFTBREAK r0:r3=WSP ; - ((write ,(if output-crlf "=\r\n" "=\n")) (end)) - ;; 6: ; r0=\r:r3=CR - (if (r6 <= 73) - ((write "=0D") (end)) - ((write ,(if output-crlf "=\r\n=0D" "=\n=0D")) (end))) - ;; 7: r5=WSP SOFTBREAK CR:r3=CR r0=LF ; - (end) - ;; 8: r5=noWSP CR:r3=CR r0=LF ; - (end) - ;; 9: (r6=73) ; CR:r3=CR r0=CR - ((write ,(if output-crlf "=\r\n=0D=0D" "=\n=0D=0D")) (end)) - ;; 10: (r6=73) CR:r3=CR CR LF ; - (end) - ;; 11: ; r0:r3={RAW,ENC} - (branch - r3 - ((write r0) (end)) - ((write "=") - (write r0 ,mel-ccl-high-table) - (write r0 ,mel-ccl-low-table) - (end))) - ;; 12: ; r0:r3={RAW,ENC} r1=CR - (branch - r3 - ;; ; r0:r3=RAW r1=CR - ((write ,(if output-crlf "=\r\n" "=\n")) - (write r0) - (write "=0D") - (end)) - ;; ; r0:r3=ENC r1=CR - ((write ,(if output-crlf "=\r\n=" "=\n=")) - (write r0 ,mel-ccl-high-table) - (write r0 ,mel-ccl-low-table) - (write "=0D") - (end))) - ;; 13: r0:r3=RAW CR LF ; - ;; 13: r0:r3=RAW CRLF ; - (end) - ;; 14: r0:r3=ENC CR LF ; - ;; 14: r0:r3=ENC CRLF ; - (end) - ;; 15: r6=0 ; "F" - ((write "F") (end)) - ;; 16: r6=0 ; "Fr" - ((write "Fr") (end)) - ;; 17: r6=0 ; "Fro" - ((write "Fro") (end)) - ;; 18: r6=0 ; "From" - ((write "From") (end)) - ;; 19: r6=0 "From " ; - (end) - ;; 20: r6=0 ; "." - ((write ".") (end)) - ;; 21: r6=0 ; ".\r" - ((write ".=0D") (end)) - ;; 22: r6=0 ; "." - ((write ".") (end)) - ;; 23: r6=0 ".\r\n" ; - (end) - )) - )) - -(defun mel-ccl-decode-quoted-printable-generic (input-crlf output-crlf) - `(1 - ((read r0) - (loop - (branch - r0 - ,@(mapcar - (lambda (r0) - (let ((tmp (aref mel-ccl-qp-table r0))) - (cond - ((eq tmp 'raw) `(write-read-repeat r0)) - ((eq tmp 'wsp) (if (eq r0 (char-int ? )) - `(r1 = 1) - `(r1 = 0))) - ((eq tmp 'cr) - (if input-crlf - ;; r0='\r' - `((read r0) - ;; '\r' r0 - (if (r0 == ?\n) - ;; '\r' r0='\n' - ;; hard line break found. - ,(if output-crlf - '((write ?\r) - (write-read-repeat r0)) - '(write-read-repeat r0)) - ;; '\r' r0:[^\n] - ;; invalid control character (bare CR) found. - ;; -> ignore it and rescan from r0. - (repeat))) - ;; r0='\r' - ;; invalid character (bare CR) found. - ;; -> ignore. - `((read r0) - (repeat)))) - ((eq tmp 'lf) - (if input-crlf - ;; r0='\n' - ;; invalid character (bare LF) found. - ;; -> ignore. - `((read r0) - (repeat)) - ;; r0='\r\n' - ;; hard line break found. - (if output-crlf - '((write ?\r) - (write-read-repeat r0)) - '(write-read-repeat r0)))) - ((eq r0 (char-int ?=)) - ;; r0='=' - `((read r0) - ;; '=' r0 - (r1 = (r0 == ?\t)) - (if ((r0 == ? ) | r1) - ;; '=' r0:[\t ] - ;; Skip transport-padding. - ;; It should check CR LF after - ;; transport-padding. - (loop - (read-if (r0 == ?\t) - (repeat) - (if (r0 == ? ) - (repeat) - (break))))) - ;; '=' [\t ]* r0:[^\t ] - (branch - r0 - ,@(mapcar - (lambda (r0) - (cond - ((eq r0 (char-int ?\r)) - (if input-crlf - ;; '=' [\t ]* r0='\r' - `((read r0) - ;; '=' [\t ]* '\r' r0 - (if (r0 == ?\n) - ;; '=' [\t ]* '\r' r0='\n' - ;; soft line break found. - ((read r0) - (repeat)) - ;; '=' [\t ]* '\r' r0:[^\n] - ;; invalid input -> - ;; output "=" and rescan from r0. - ((write "=") - (repeat)))) - ;; '=' [\t ]* r0='\r' - ;; invalid input (bare CR found) -> - ;; output "=" and rescan from next. - `((write ?=) - (read r0) - (repeat)))) - ((eq r0 (char-int ?\n)) - (if input-crlf - ;; '=' [\t ]* r0='\n' - ;; invalid input (bare LF found) -> - ;; output "=" and rescan from next. - `((write ?=) - (read r0) - (repeat)) - ;; '=' [\t ]* r0='\r\n' - ;; soft line break found. - `((read r0) - (repeat)))) - ((setq tmp (nth r0 mel-ccl-256-to-16-table)) - ;; '=' [\t ]* r0:[0-9A-F] - ;; upper nibble of hexadecimal digit found. - `((r1 = r0) - (r0 = ,tmp))) - (t - ;; '=' [\t ]* r0:[^\r0-9A-F] - ;; invalid input -> - ;; output "=" and rescan from r0. - `((write ?=) - (repeat))))) - mel-ccl-256-table)) - ;; '=' [\t ]* r1:r0:[0-9A-F] - (read-branch - r2 - ,@(mapcar - (lambda (r2) - (if (setq tmp (nth r2 mel-ccl-256-to-16-table)) - ;; '=' [\t ]* r1:r0:[0-9A-F] r2:[0-9A-F] - `(write-read-repeat - r0 - ,(vconcat - (mapcar - (lambda (r0) - (logior (lsh r0 4) tmp)) - mel-ccl-16-table))) - ;; '=' [\t ]* r1:r0:[0-9A-F] r2:[^0-9A-F] - ;; invalid input - `(r3 = 0) ; nop - )) - mel-ccl-256-table)) - ;; '=' [\t ]* r1:r0:[0-9A-F] r2:[^0-9A-F] - ;; invalid input -> - ;; output "=" with hex digit and rescan from r2. - (write ?=) - (r0 = r2) - (write-repeat r1))) - (t - ;; r0:[^\t\r -~] - ;; invalid character found. - ;; -> ignore. - `((read r0) - (repeat)))))) - mel-ccl-256-table)) - ;; r1[0]:[\t ] - (loop - ,@(apply - 'append - (mapcar - (lambda (regnum) - (let ((reg (aref [r1 r2 r3 r4 r5] regnum))) - (apply - 'append - (mapcar - (lambda (bit) - (if (= bit 0) - (if (= regnum 0) - nil - `((read r0) - (if (r0 == ?\t) - (,reg = 0) - (if (r0 == ?\ ) - (,reg = 1) - ((r6 = ,(+ (* regnum 28) bit)) - (break)))))) - `((read r0) - (if (r0 == ?\ ) - (,reg |= ,(lsh 1 bit)) - (if (r0 != ?\t) - ((r6 = ,(+ (* regnum 28) bit)) - (break))))))) - mel-ccl-28-table)))) - '(0 1 2 3 4))) - ;; white space buffer exhaust. - ;; error: line length limit (76bytes) violation. - ;; -> ignore these white spaces. - (repeat)) - ,(if input-crlf - `(if (r0 == ?\r) - ((read r0) - (if (r0 == ?\n) - ;; trailing white spaces found. - ;; -> ignore these white spacs. - ((write ,(if output-crlf "\r\n" "\n")) - (read r0) - (repeat)) - ;; [\t ]* \r r0:[^\n] - ;; error: bare CR found. - ;; -> output white spaces and ignore bare CR. - )) - ;; [\t ]* r0:[^\r] - ;; middle white spaces found. - ) - `(if (r0 == ?\n) - ;; trailing white spaces found. - ;; -> ignore these white spacs. - ((write ,(if output-crlf "\r\n" "\n")) - (read r0) - (repeat)) - ;; [\t ]* r0:[^\n] - ;; middle white spaces found. - )) - ,@(apply - 'append - (mapcar - (lambda (regnum) - (let ((reg (aref [r1 r2 r3 r4 r5] regnum))) - (apply - 'append - (mapcar - (lambda (bit) - `((if (,reg & ,(lsh 1 bit)) - (write ?\ ) - (write ?\t)) - (if (r6 == ,(+ (* regnum 28) bit 1)) - (repeat)))) - mel-ccl-28-table)))) - '(0 1 2 3 4))) - (repeat) - )))) - -) - -(define-ccl-program mel-ccl-encode-quoted-printable-crlf-crlf - (mel-ccl-encode-quoted-printable-generic t t)) - -(define-ccl-program mel-ccl-encode-quoted-printable-crlf-lf - (mel-ccl-encode-quoted-printable-generic t nil)) - -(define-ccl-program mel-ccl-encode-quoted-printable-lf-crlf - (mel-ccl-encode-quoted-printable-generic nil t)) - -(define-ccl-program mel-ccl-encode-quoted-printable-lf-lf - (mel-ccl-encode-quoted-printable-generic nil nil)) - -(define-ccl-program mel-ccl-decode-quoted-printable-crlf-crlf - (mel-ccl-decode-quoted-printable-generic t t)) - -(define-ccl-program mel-ccl-decode-quoted-printable-crlf-lf - (mel-ccl-decode-quoted-printable-generic t nil)) - -(define-ccl-program mel-ccl-decode-quoted-printable-lf-crlf - (mel-ccl-decode-quoted-printable-generic nil t)) - -(define-ccl-program mel-ccl-decode-quoted-printable-lf-lf - (mel-ccl-decode-quoted-printable-generic nil nil)) - - -;;; @ coding system -;;; - -(make-ccl-coding-system - 'mel-ccl-uq-rev ?Q "MIME Q-encoding in unstructured field (reversed)" - 'mel-ccl-encode-uq 'mel-ccl-decode-q) - -(make-ccl-coding-system - 'mel-ccl-cq-rev ?Q "MIME Q-encoding in comment (reversed)" - 'mel-ccl-encode-cq 'mel-ccl-decode-q) - -(make-ccl-coding-system - 'mel-ccl-pq-rev ?Q "MIME Q-encoding in phrase (reversed)" - 'mel-ccl-encode-pq 'mel-ccl-decode-q) - -(make-ccl-coding-system - 'mel-ccl-b-rev ?B "MIME B-encoding (reversed)" - 'mel-ccl-encode-b 'mel-ccl-decode-b) - -(make-ccl-coding-system - 'mel-ccl-quoted-printable-crlf-crlf-rev - ?Q "MIME Quoted-Printable-encoding (reversed)" - 'mel-ccl-encode-quoted-printable-crlf-crlf - 'mel-ccl-decode-quoted-printable-crlf-crlf) - -(make-ccl-coding-system - 'mel-ccl-quoted-printable-lf-crlf-rev - ?Q "MIME Quoted-Printable-encoding (LF encoding) (reversed)" - 'mel-ccl-encode-quoted-printable-crlf-lf - 'mel-ccl-decode-quoted-printable-lf-crlf) - -(make-ccl-coding-system - 'mel-ccl-quoted-printable-crlf-lf-rev - ?Q "MIME Quoted-Printable-encoding (LF internal) (reversed)" - 'mel-ccl-encode-quoted-printable-lf-crlf - 'mel-ccl-decode-quoted-printable-crlf-lf) - -(make-ccl-coding-system - 'mel-ccl-quoted-printable-lf-lf-rev - ?Q "MIME Quoted-Printable-encoding (LF encoding) (LF internal) (reversed)" - 'mel-ccl-encode-quoted-printable-lf-lf - 'mel-ccl-decode-quoted-printable-lf-lf) - -(make-ccl-coding-system - 'mel-ccl-base64-crlf-rev - ?B "MIME Base64-encoding (reversed)" - 'mel-ccl-encode-base64-crlf-crlf - 'mel-ccl-decode-b) - -(make-ccl-coding-system - 'mel-ccl-base64-lf-rev - ?B "MIME Base64-encoding (LF encoding) (reversed)" - 'mel-ccl-encode-base64-crlf-lf - 'mel-ccl-decode-b) - - -;;; @ B -;;; - -(unless-broken ccl-execute-eof-block-on-decoding-some - - (defun base64-ccl-encode-string (string) - "Encode STRING with base64 encoding." - (decode-coding-string string 'mel-ccl-base64-lf-rev)) - - (defun base64-ccl-encode-region (start end) - "Encode region from START to END with base64 encoding." - (interactive "r") - (decode-coding-region start end 'mel-ccl-base64-lf-rev)) - - (defun base64-ccl-insert-encoded-file (filename) - "Encode contents of file FILENAME to base64, and insert the result." - (interactive (list (read-file-name "Insert encoded file: "))) - (let ((coding-system-for-read 'mel-ccl-base64-lf-rev)) - (insert-file-contents filename))) - - (mel-define-method-function (mime-encode-string string (nil "base64")) - 'base64-ccl-encode-string) - (mel-define-method-function (mime-encode-region start end (nil "base64")) - 'base64-ccl-encode-region) - (mel-define-method-function - (mime-insert-encoded-file filename (nil "base64")) - 'base64-ccl-insert-encoded-file) - - (mel-define-method-function (encoded-text-encode-string string (nil "B")) - 'base64-ccl-encode-string) - ) - -(defun base64-ccl-decode-string (string) - "Decode base64 encoded STRING" - (encode-coding-string string 'mel-ccl-b-rev)) - -(defun base64-ccl-decode-region (start end) - "Decode base64 encoded the region from START to END." - (interactive "r") - (encode-coding-region start end 'mel-ccl-b-rev)) - -(defun base64-ccl-write-decoded-region (start end filename) - "Decode the region from START to END and write out to FILENAME." - (interactive - (list (region-beginning) (region-end) - (read-file-name "Write decoded region to file: "))) - (let ((coding-system-for-write 'mel-ccl-b-rev) - jka-compr-compression-info-list) - (write-region start end filename))) - -(mel-define-method-function (mime-decode-string string (nil "base64")) - 'base64-ccl-decode-string) -(mel-define-method-function (mime-decode-region start end (nil "base64")) - 'base64-ccl-decode-region) -(mel-define-method-function - (mime-write-decoded-region start end filename (nil "base64")) - 'base64-ccl-write-decoded-region) - -(mel-define-method encoded-text-decode-string (string (nil "B")) - (if (and (string-match B-encoded-text-regexp string) - (string= string (match-string 0 string))) - (base64-ccl-decode-string string) - (error "Invalid encoded-text %s" string))) - - -;;; @ quoted-printable -;;; - -(unless-broken ccl-execute-eof-block-on-decoding-some - - (defun quoted-printable-ccl-encode-string (string) - "Encode STRING with quoted-printable encoding." - (decode-coding-string - string - 'mel-ccl-quoted-printable-lf-lf-rev)) - - (defun quoted-printable-ccl-encode-region (start end) - "Encode the region from START to END with quoted-printable encoding." - (interactive "r") - (decode-coding-region start end 'mel-ccl-quoted-printable-lf-lf-rev)) - - (defun quoted-printable-ccl-insert-encoded-file (filename) - "Encode contents of the file named as FILENAME, and insert it." - (interactive (list (read-file-name "Insert encoded file: "))) - (let ((coding-system-for-read 'mel-ccl-quoted-printable-lf-lf-rev)) - (insert-file-contents filename))) - - (mel-define-method-function - (mime-encode-string string (nil "quoted-printable")) - 'quoted-printable-ccl-encode-string) - (mel-define-method-function - (mime-encode-region start end (nil "quoted-printable")) - 'quoted-printable-ccl-encode-region) - (mel-define-method-function - (mime-insert-encoded-file filename (nil "quoted-printable")) - 'quoted-printable-ccl-insert-encoded-file) - ) - -(defun quoted-printable-ccl-decode-string (string) - "Decode quoted-printable encoded STRING." - (encode-coding-string - string - 'mel-ccl-quoted-printable-lf-lf-rev)) - -(defun quoted-printable-ccl-decode-region (start end) - "Decode the region from START to END with quoted-printable -encoding." - (interactive "r") - (encode-coding-region start end 'mel-ccl-quoted-printable-lf-lf-rev)) - -(defun quoted-printable-ccl-write-decoded-region - (start end filename) - "Decode quoted-printable encoded current region and write out to FILENAME." - (interactive - (list (region-beginning) (region-end) - (read-file-name "Write decoded region to file: "))) - (let ((coding-system-for-write 'mel-ccl-quoted-printable-lf-lf-rev)) - (write-region start end filename))) - -(mel-define-method-function - (mime-decode-string string (nil "quoted-printable")) - 'quoted-printable-ccl-decode-string) -(mel-define-method-function - (mime-decode-region start end (nil "quoted-printable")) - 'quoted-printable-ccl-decode-region) -(mel-define-method-function - (mime-write-decoded-region start end filename (nil "quoted-printable")) - 'quoted-printable-ccl-write-decoded-region) - - -;;; @ Q -;;; - -(defun q-encoding-ccl-encode-string (string &optional mode) - "Encode STRING to Q-encoding of encoded-word, and return the result. -MODE allows `text', `comment', `phrase' or nil. Default value is -`phrase'." - (decode-coding-string - string - (cond - ((eq mode 'text) 'mel-ccl-uq-rev) - ((eq mode 'comment) 'mel-ccl-cq-rev) - (t 'mel-ccl-pq-rev)))) - -(defun q-encoding-ccl-decode-string (string) - "Decode Q encoded STRING and return the result." - (encode-coding-string - string - 'mel-ccl-uq-rev)) - -(unless (featurep 'xemacs) - (defun q-encoding-ccl-encoded-length (string &optional mode) - (let ((status [nil nil nil nil nil nil nil nil nil])) - (fillarray status nil) - (ccl-execute-on-string - (cond - ((eq mode 'text) 'mel-ccl-count-uq) - ((eq mode 'comment) 'mel-ccl-count-cq) - (t 'mel-ccl-count-pq)) - status - string) - (aref status 0))) - ) - -(mel-define-method-function (encoded-text-encode-string string (nil "Q")) - 'q-encoding-ccl-encode-string) - -(mel-define-method encoded-text-decode-string (string (nil "Q")) - (if (and (string-match Q-encoded-text-regexp string) - (string= string (match-string 0 string))) - (q-encoding-ccl-decode-string string) - (error "Invalid encoded-text %s" string))) - - -;;; @ end -;;; - -(provide 'mel-ccl) - -;;; mel-ccl.el ends here diff --git a/mel-q-ccl.el b/mel-q-ccl.el new file mode 100644 index 0000000..17b58be --- /dev/null +++ b/mel-q-ccl.el @@ -0,0 +1,1016 @@ +;;; mel-ccl.el: CCL based encoder/decoder of Quoted-Printable +;;; and Q-encoding + +;; Copyright (C) 1998 Tanaka Akira + +;; Author: Tanaka Akira +;; Created: 1998/9/17 +;; Keywords: MIME, Quoted-Printable, Q-encoding + +;; This file is part of FLIM (Faithful Library about Internet Message). + +;; This program is free software; you can redistribute it and/or +;; modify it under the terms of the GNU General Public License as +;; published by the Free Software Foundation; either version 2, or (at +;; your option) any later version. + +;; This program is distributed in the hope that it will be useful, but +;; WITHOUT ANY WARRANTY; without even the implied warranty of +;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU +;; General Public License for more details. + +;; You should have received a copy of the GNU General Public License +;; along with GNU Emacs; see the file COPYING. If not, write to the +;; Free Software Foundation, Inc., 59 Temple Place - Suite 330, +;; Boston, MA 02111-1307, USA. + +;;; Code: + +(require 'ccl) +(require 'pccl) +(require 'mime-def) + + +;;; @ constants +;;; + +(eval-when-compile + +(defconst mel-ccl-16-table + '( 0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15)) + +(defconst mel-ccl-28-table + '( 0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 + 16 17 18 19 20 21 22 23 24 25 26 27)) + +(defconst mel-ccl-256-table + '( 0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 + 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 + 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 + 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 + 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 + 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 + 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 + 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 + 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 + 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 + 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 + 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 + 192 193 194 195 196 197 198 199 200 201 202 203 204 205 206 207 + 208 209 210 211 212 213 214 215 216 217 218 219 220 221 222 223 + 224 225 226 227 228 229 230 231 232 233 234 235 236 237 238 239 + 240 241 242 243 244 245 246 247 248 249 250 251 252 253 254 255)) + +(defconst mel-ccl-256-to-16-table + '(nil nil nil nil nil nil nil nil nil nil nil nil nil nil nil nil + nil nil nil nil nil nil nil nil nil nil nil nil nil nil nil nil + nil nil nil nil nil nil nil nil nil nil nil nil nil nil nil nil + 0 1 2 3 4 5 6 7 8 9 nil nil nil nil nil nil + nil 10 11 12 13 14 15 nil nil nil nil nil nil nil nil nil + nil nil nil nil nil nil nil nil nil nil nil nil nil nil nil nil + nil nil nil nil nil nil nil nil nil nil nil nil nil nil nil nil + nil nil nil nil nil nil nil nil nil nil nil nil nil nil nil nil + nil nil nil nil nil nil nil nil nil nil nil nil nil nil nil nil + nil nil nil nil nil nil nil nil nil nil nil nil nil nil nil nil + nil nil nil nil nil nil nil nil nil nil nil nil nil nil nil nil + nil nil nil nil nil nil nil nil nil nil nil nil nil nil nil nil + nil nil nil nil nil nil nil nil nil nil nil nil nil nil nil nil + nil nil nil nil nil nil nil nil nil nil nil nil nil nil nil nil + nil nil nil nil nil nil nil nil nil nil nil nil nil nil nil nil + nil nil nil nil nil nil nil nil nil nil nil nil nil nil nil nil)) + +(defconst mel-ccl-16-to-256-table + (mapcar 'char-int "0123456789ABCDEF")) + +(defconst mel-ccl-high-table + (vconcat + (mapcar + (lambda (v) (nth (lsh v -4) mel-ccl-16-to-256-table)) + mel-ccl-256-table))) + +(defconst mel-ccl-low-table + (vconcat + (mapcar + (lambda (v) (nth (logand v 15) mel-ccl-16-to-256-table)) + mel-ccl-256-table))) + +(defconst mel-ccl-u-raw + (mapcar + 'char-int + "0123456789\ +ABCDEFGHIJKLMNOPQRSTUVWXYZ\ +abcdefghijklmnopqrstuvwxyz\ +!@#$%&'()*+,-./:;<>@[\\]^`{|}~")) + +(defconst mel-ccl-c-raw + (mapcar + 'char-int + "0123456789\ +ABCDEFGHIJKLMNOPQRSTUVWXYZ\ +abcdefghijklmnopqrstuvwxyz\ +!@#$%&'*+,-./:;<>@[]^`{|}~")) + +(defconst mel-ccl-p-raw + (mapcar + 'char-int + "0123456789\ +ABCDEFGHIJKLMNOPQRSTUVWXYZ\ +abcdefghijklmnopqrstuvwxyz\ +!*+-/")) + +(defconst mel-ccl-qp-table + [enc enc enc enc enc enc enc enc enc wsp lf enc enc cr enc enc + enc enc enc enc enc enc enc enc enc enc enc enc enc enc enc enc + wsp raw raw raw raw raw raw raw raw raw raw raw raw raw raw raw + raw raw raw raw raw raw raw raw raw raw raw raw raw enc raw raw + raw raw raw raw raw raw raw raw raw raw raw raw raw raw raw raw + raw raw raw raw raw raw raw raw raw raw raw raw raw raw raw raw + raw raw raw raw raw raw raw raw raw raw raw raw raw raw raw raw + raw raw raw raw raw raw raw raw raw raw raw raw raw raw raw enc + enc enc enc enc enc enc enc enc enc enc enc enc enc enc enc enc + enc enc enc enc enc enc enc enc enc enc enc enc enc enc enc enc + enc enc enc enc enc enc enc enc enc enc enc enc enc enc enc enc + enc enc enc enc enc enc enc enc enc enc enc enc enc enc enc enc + enc enc enc enc enc enc enc enc enc enc enc enc enc enc enc enc + enc enc enc enc enc enc enc enc enc enc enc enc enc enc enc enc + enc enc enc enc enc enc enc enc enc enc enc enc enc enc enc enc + enc enc enc enc enc enc enc enc enc enc enc enc enc enc enc enc]) + +) + + +;;; @ CCL programs +;;; + +;;; Q + +(define-ccl-program mel-ccl-decode-q + `(1 + ((loop + (read-branch + r0 + ,@(mapcar + (lambda (r0) + (cond + ((= r0 (char-int ?_)) + `(write-repeat ? )) + ((= r0 (char-int ?=)) + `((loop + (read-branch + r1 + ,@(mapcar + (lambda (v) + (if (integerp v) + `((r0 = ,v) (break)) + '(repeat))) + mel-ccl-256-to-16-table))) + (loop + (read-branch + r1 + ,@(mapcar + (lambda (v) + (if (integerp v) + `((write r0 ,(vconcat + (mapcar + (lambda (r0) + (logior (lsh r0 4) v)) + mel-ccl-16-table))) + (break)) + '(repeat))) + mel-ccl-256-to-16-table))) + (repeat))) + (t + `(write-repeat ,r0)))) + mel-ccl-256-table)))))) + +(eval-when-compile + +(defun mel-ccl-encode-q-generic (raw) + `(3 + (loop + (loop + (read-branch + r0 + ,@(mapcar + (lambda (r0) + (cond + ((= r0 32) `(write-repeat ?_)) + ((member r0 raw) `(write-repeat ,r0)) + (t '(break)))) + mel-ccl-256-table))) + (write ?=) + (write r0 ,mel-ccl-high-table) + (write r0 ,mel-ccl-low-table) + (repeat)))) + +;; On xemacs, generated program counts iso-8859-1 8bit character as 6bytes. +(defun mel-ccl-count-q-length (raw) + `(0 + ((r0 = 0) + (loop + (read-branch + r1 + ,@(mapcar + (lambda (r1) + (if (or (= r1 32) (member r1 raw)) + '((r0 += 1) (repeat)) + '((r0 += 3) (repeat)))) + mel-ccl-256-table)))))) + +) + +(define-ccl-program mel-ccl-encode-uq + (mel-ccl-encode-q-generic mel-ccl-u-raw)) +(define-ccl-program mel-ccl-encode-cq + (mel-ccl-encode-q-generic mel-ccl-c-raw)) +(define-ccl-program mel-ccl-encode-pq + (mel-ccl-encode-q-generic mel-ccl-p-raw)) + +(define-ccl-program mel-ccl-count-uq + (mel-ccl-count-q-length mel-ccl-u-raw)) +(define-ccl-program mel-ccl-count-cq + (mel-ccl-count-q-length mel-ccl-c-raw)) +(define-ccl-program mel-ccl-count-pq + (mel-ccl-count-q-length mel-ccl-p-raw)) + +;; Quoted-Printable + +(eval-when-compile + +(defun mel-ccl-try-to-read-crlf (input-crlf reg eof-reg cr-eof lf-eof crlf-eof succ fail-cr fail-lf fail-crlf) + (if input-crlf + `((,eof-reg = ,cr-eof) (read-if (,reg == ?\r) + ((,eof-reg = ,lf-eof) (read-if (,reg == ?\n) + ,succ + ,fail-lf)) + ,fail-cr)) + `((,eof-reg = ,crlf-eof) (read-if (,reg == ?\n) + ,succ + ,fail-crlf)))) + +;; Generated CCL program works not properly on 20.2 because CCL_EOF_BLOCK +;; is not executed. +(defun mel-ccl-encode-quoted-printable-generic (input-crlf output-crlf) + `(4 + ((r6 = 0) ; column + (r5 = 0) ; previous character is white space + (r4 = 0) + (read r0) + (loop ; r6 <= 75 + (loop + (loop + (branch + r0 + ,@(mapcar + (lambda (r0) + (let ((tmp (aref mel-ccl-qp-table r0))) + (cond + ((eq r0 (char-int ?F)) + `(if (r6 == 0) + ((r4 = 15) (read-if (r0 == ?r) + ((r4 = 16) (read-if (r0 == ?o) + ((r4 = 17) (read-if (r0 == ?m) + ((r4 = 18) (read-if (r0 == ? ) + ((r6 = 7) + (r5 = 1) + (write "=46rom ") + (r4 = 19) + (read r0) + (repeat)) + ((r6 = 4) + (write-repeat "From")))) + ((r6 = 3) + (write-repeat "Fro")))) + ((r6 = 2) + (write-repeat "Fr")))) + ((r6 = 1) + (write-repeat "F")))) + ((r3 = 0) (break)) ; RAW + )) + ((eq r0 (char-int ?.)) + `(if (r6 == 0) + ,(mel-ccl-try-to-read-crlf + input-crlf + 'r0 'r4 20 21 22 + `((write ,(if output-crlf "=2E\r\n" "=2E\n")) + (r4 = 23) + (read r0) + (repeat)) + '((r6 = 1) + (write-repeat ".")) + '((r6 = 4) + (write-repeat ".=0D")) + '((r6 = 1) + (write-repeat "."))) + ((r3 = 0) (break)) ; RAW + )) + ((eq tmp 'raw) '((r3 = 0) (break))) ; RAW + ((eq tmp 'enc) '((r3 = 1) (break))) ; ENC + ((eq tmp 'wsp) '((r3 = 2) (break))) ; WSP + ((eq tmp 'cr) (if input-crlf + '((r3 = 3) (break)) ; CR + '((r3 = 1) (break)))) ; ENC + ((eq tmp 'lf) (if input-crlf + '((r3 = 1) (break)) ; ENC + '((r3 = 3) (break)))) ; CRLF + ))) + mel-ccl-256-table))) + (branch + r3 + ;; r0:r3=RAW + (if (r6 < 75) + ((r6 += 1) + (r5 = 0) + (r4 = 1) + (write-read-repeat r0)) + (break)) + ;; r0:r3=ENC + ((r5 = 0) + (if (r6 < 73) + ((r6 += 3) + (write "=") + (write r0 ,mel-ccl-high-table) + (r4 = 2) + (write-read-repeat r0 ,mel-ccl-low-table)) + (if (r6 > 73) + ((r6 = 3) + (write ,(if output-crlf "=\r\n=" "=\n=")) + (write r0 ,mel-ccl-high-table) + (r4 = 3) + (write-read-repeat r0 ,mel-ccl-low-table)) + (break)))) + ;; r0:r3=WSP + ((r5 = 1) + (if (r6 < 75) + ((r6 += 1) + (r4 = 4) + (write-read-repeat r0)) + ((r6 = 1) + (write ,(if output-crlf "=\r\n" "=\n")) + (r4 = 5) + (write-read-repeat r0)))) + ;; r0:r3=CR/CRLF + ,(if input-crlf + ;; r0:r3=CR + `((if ((r6 > 73) & r5) + ((r6 = 0) + (r5 = 0) + (write ,(if output-crlf "=\r\n" "=\n")))) + (break)) + ;; r0:r3=CRLF + `(if r5 + ;; WSP ; r0:r3=CRLF + ((r5 = 0) + (r6 = 0) + (write ,(if output-crlf "=\r\n" "=\n")) + ,@(if output-crlf '((write ?\r)) '()) + (r4 = 0) + (write-read-repeat r0)) + ;; noWSP ; r0:r3=CRLF + ((r5 = 0) + (r6 = 0) + ,@(if output-crlf '((write ?\r)) '()) + (r4 = 0) + (write-read-repeat r0))) + ))) + ;; r0:r3={RAW,ENC,CR} + (loop + ,(funcall + (lambda (after-cr after-raw-enc) + (if input-crlf + `(if (r0 == ?\r) + ,after-cr + ,after-raw-enc) + after-raw-enc)) + ;; r0=\r:r3=CR + `((r4 = 6) + (read r0) + ;; CR:r3=CR r0 + (if (r0 == ?\n) + ;; CR:r3=CR r0=LF + (if r5 + ;; r5=WSP ; CR:r3=CR r0=LF + ((r6 = 0) + (r5 = 0) + (write ,(if output-crlf "=\r\n\r\n" "=\n\n")) + (r4 = 7) + (read r0) + (break)) + ;; r5=noWSP ; CR:r3=CR r0=LF + ((r6 = 0) + (r5 = 0) + (write ,(if output-crlf "\r\n" "\n")) + (r4 = 8) + (read r0) + (break))) + ;; CR:r3=CR r0=noLF + (if (r6 < 73) + ((r6 += 3) + (r5 = 0) + (write "=0D") + (break)) + (if (r6 == 73) + (if (r0 == ?\r) + ;; CR:r3=CR r0=CR + ((r4 = 9) + (read r0) + ;; CR:r3=CR CR r0 + (if (r0 == ?\n) + ;; CR:r3=CR CR LF + ((r6 = 0) + (r5 = 0) + (write ,(if output-crlf "=0D\r\n" "=0D\n")) + (r4 = 10) + (read r0) + (break)) + ;; CR:r3=CR CR noLF + ((r6 = 6) + (r5 = 0) + (write ,(if output-crlf "=\r\n=0D=0D" "=\n=0D=0D")) + (break)))) + ;; CR:r3=CR r0=noLFnorCR + ((r6 = 3) + (r5 = 0) + (write ,(if output-crlf "=\r\n=0D" "=\n=0D")) + (break))) + ((r6 = 3) + (r5 = 0) + (write ,(if output-crlf "=\r\n=0D" "=\n=0D")) + (break)))))) + (funcall + (lambda (after-newline after-cr-nolf after-nonewline) + (if input-crlf + ;; r0:r3={RAW,ENC} + `((r4 = 11) + (read r1) + ;; r0:r3={RAW,ENC} r1 + (if (r1 == ?\r) + ;; r0:r3={RAW,ENC} r1=CR + ((r4 = 12) + (read r1) + ;; r0:r3={RAW,ENC} CR r1 + (if (r1 == ?\n) + ;; r0:r3=RAW CR r1=LF + ,after-newline + ;; r0:r3=RAW CR r1=noLF + ,after-cr-nolf)) + ;; r0:r3={RAW,ENC} r1:noCR + ,after-nonewline)) + ;; r0:r3={RAW,ENC} + `((r4 = 11) + (read r1) + ;; r0:r3={RAW,ENC} r1 + (if (r1 == ?\n) + ;; r0:r3={RAW,ENC} r1=CRLF + ,after-newline + ;; r0:r3={RAW,ENC} r1:noCRLF + ,after-nonewline)))) + ;; r0:r3={RAW,ENC} CR r1=LF + ;; r0:r3={RAW,ENC} r1=CRLF + `((r6 = 0) + (r5 = 0) + (branch + r3 + ;; r0:r3=RAW CR r1=LF + ;; r0:r3=RAW r1=CRLF + ((write r0) + (write ,(if output-crlf "\r\n" "\n")) + (r4 = 13) + (read r0) + (break)) + ;; r0:r3=ENC CR r1=LF + ;; r0:r3=ENC r1=CRLF + ((write ?=) + (write r0 ,mel-ccl-high-table) + (write r0 ,mel-ccl-low-table) + (write ,(if output-crlf "\r\n" "\n")) + (r4 = 14) + (read r0) + (break)))) + ;; r0:r3={RAW,ENC} CR r1=noLF + `((branch + r3 + ;; r0:r3=RAW CR r1:noLF + ((r6 = 4) + (r5 = 0) + (write ,(if output-crlf "=\r\n" "=\n")) + (write r0) + (write "=0D") + (r0 = r1) + (break)) + ;; r0:r3=ENC CR r1:noLF + ((r6 = 6) + (r5 = 0) + (write ,(if output-crlf "=\r\n=" "=\n=")) + (write r0 ,mel-ccl-high-table) + (write r0 ,mel-ccl-low-table) + (write "=0D") + (r0 = r1) + (break)))) + ;; r0:r3={RAW,ENC} r1:noCR + ;; r0:r3={RAW,ENC} r1:noCRLF + `((branch + r3 + ;; r0:r3=RAW r1:noCR + ;; r0:r3=RAW r1:noCRLF + ((r6 = 1) + (r5 = 0) + (write ,(if output-crlf "=\r\n" "=\n")) + (write r0) + (r0 = r1) + (break)) + ;; r0:r3=ENC r1:noCR + ;; r0:r3=ENC r1:noCRLF + ((r6 = 3) + (r5 = 0) + (write ,(if output-crlf "=\r\n=" "=\n=")) + (write r0 ,mel-ccl-high-table) + (write r0 ,mel-ccl-low-table) + (r0 = r1) + (break))))))) + (repeat))) + ;; EOF + ( ;(write "[EOF:") (write r4 ,mel-ccl-high-table) (write r4 ,mel-ccl-low-table) (write "]") + (branch + r4 + ;; 0: (start) ; + (end) + ;; 1: RAW ; + (end) + ;; 2: r0:r3=ENC ; + (end) + ;; 3: SOFTBREAK r0:r3=ENC ; + (end) + ;; 4: r0:r3=WSP ; + ((write ,(if output-crlf "=\r\n" "=\n")) (end)) + ;; 5: SOFTBREAK r0:r3=WSP ; + ((write ,(if output-crlf "=\r\n" "=\n")) (end)) + ;; 6: ; r0=\r:r3=CR + (if (r6 <= 73) + ((write "=0D") (end)) + ((write ,(if output-crlf "=\r\n=0D" "=\n=0D")) (end))) + ;; 7: r5=WSP SOFTBREAK CR:r3=CR r0=LF ; + (end) + ;; 8: r5=noWSP CR:r3=CR r0=LF ; + (end) + ;; 9: (r6=73) ; CR:r3=CR r0=CR + ((write ,(if output-crlf "=\r\n=0D=0D" "=\n=0D=0D")) (end)) + ;; 10: (r6=73) CR:r3=CR CR LF ; + (end) + ;; 11: ; r0:r3={RAW,ENC} + (branch + r3 + ((write r0) (end)) + ((write "=") + (write r0 ,mel-ccl-high-table) + (write r0 ,mel-ccl-low-table) + (end))) + ;; 12: ; r0:r3={RAW,ENC} r1=CR + (branch + r3 + ;; ; r0:r3=RAW r1=CR + ((write ,(if output-crlf "=\r\n" "=\n")) + (write r0) + (write "=0D") + (end)) + ;; ; r0:r3=ENC r1=CR + ((write ,(if output-crlf "=\r\n=" "=\n=")) + (write r0 ,mel-ccl-high-table) + (write r0 ,mel-ccl-low-table) + (write "=0D") + (end))) + ;; 13: r0:r3=RAW CR LF ; + ;; 13: r0:r3=RAW CRLF ; + (end) + ;; 14: r0:r3=ENC CR LF ; + ;; 14: r0:r3=ENC CRLF ; + (end) + ;; 15: r6=0 ; "F" + ((write "F") (end)) + ;; 16: r6=0 ; "Fr" + ((write "Fr") (end)) + ;; 17: r6=0 ; "Fro" + ((write "Fro") (end)) + ;; 18: r6=0 ; "From" + ((write "From") (end)) + ;; 19: r6=0 "From " ; + (end) + ;; 20: r6=0 ; "." + ((write ".") (end)) + ;; 21: r6=0 ; ".\r" + ((write ".=0D") (end)) + ;; 22: r6=0 ; "." + ((write ".") (end)) + ;; 23: r6=0 ".\r\n" ; + (end) + )) + )) + +(defun mel-ccl-decode-quoted-printable-generic (input-crlf output-crlf) + `(1 + ((read r0) + (loop + (branch + r0 + ,@(mapcar + (lambda (r0) + (let ((tmp (aref mel-ccl-qp-table r0))) + (cond + ((eq tmp 'raw) `(write-read-repeat r0)) + ((eq tmp 'wsp) (if (eq r0 (char-int ? )) + `(r1 = 1) + `(r1 = 0))) + ((eq tmp 'cr) + (if input-crlf + ;; r0='\r' + `((read r0) + ;; '\r' r0 + (if (r0 == ?\n) + ;; '\r' r0='\n' + ;; hard line break found. + ,(if output-crlf + '((write ?\r) + (write-read-repeat r0)) + '(write-read-repeat r0)) + ;; '\r' r0:[^\n] + ;; invalid control character (bare CR) found. + ;; -> ignore it and rescan from r0. + (repeat))) + ;; r0='\r' + ;; invalid character (bare CR) found. + ;; -> ignore. + `((read r0) + (repeat)))) + ((eq tmp 'lf) + (if input-crlf + ;; r0='\n' + ;; invalid character (bare LF) found. + ;; -> ignore. + `((read r0) + (repeat)) + ;; r0='\r\n' + ;; hard line break found. + (if output-crlf + '((write ?\r) + (write-read-repeat r0)) + '(write-read-repeat r0)))) + ((eq r0 (char-int ?=)) + ;; r0='=' + `((read r0) + ;; '=' r0 + (r1 = (r0 == ?\t)) + (if ((r0 == ? ) | r1) + ;; '=' r0:[\t ] + ;; Skip transport-padding. + ;; It should check CR LF after + ;; transport-padding. + (loop + (read-if (r0 == ?\t) + (repeat) + (if (r0 == ? ) + (repeat) + (break))))) + ;; '=' [\t ]* r0:[^\t ] + (branch + r0 + ,@(mapcar + (lambda (r0) + (cond + ((eq r0 (char-int ?\r)) + (if input-crlf + ;; '=' [\t ]* r0='\r' + `((read r0) + ;; '=' [\t ]* '\r' r0 + (if (r0 == ?\n) + ;; '=' [\t ]* '\r' r0='\n' + ;; soft line break found. + ((read r0) + (repeat)) + ;; '=' [\t ]* '\r' r0:[^\n] + ;; invalid input -> + ;; output "=" and rescan from r0. + ((write "=") + (repeat)))) + ;; '=' [\t ]* r0='\r' + ;; invalid input (bare CR found) -> + ;; output "=" and rescan from next. + `((write ?=) + (read r0) + (repeat)))) + ((eq r0 (char-int ?\n)) + (if input-crlf + ;; '=' [\t ]* r0='\n' + ;; invalid input (bare LF found) -> + ;; output "=" and rescan from next. + `((write ?=) + (read r0) + (repeat)) + ;; '=' [\t ]* r0='\r\n' + ;; soft line break found. + `((read r0) + (repeat)))) + ((setq tmp (nth r0 mel-ccl-256-to-16-table)) + ;; '=' [\t ]* r0:[0-9A-F] + ;; upper nibble of hexadecimal digit found. + `((r1 = r0) + (r0 = ,tmp))) + (t + ;; '=' [\t ]* r0:[^\r0-9A-F] + ;; invalid input -> + ;; output "=" and rescan from r0. + `((write ?=) + (repeat))))) + mel-ccl-256-table)) + ;; '=' [\t ]* r1:r0:[0-9A-F] + (read-branch + r2 + ,@(mapcar + (lambda (r2) + (if (setq tmp (nth r2 mel-ccl-256-to-16-table)) + ;; '=' [\t ]* r1:r0:[0-9A-F] r2:[0-9A-F] + `(write-read-repeat + r0 + ,(vconcat + (mapcar + (lambda (r0) + (logior (lsh r0 4) tmp)) + mel-ccl-16-table))) + ;; '=' [\t ]* r1:r0:[0-9A-F] r2:[^0-9A-F] + ;; invalid input + `(r3 = 0) ; nop + )) + mel-ccl-256-table)) + ;; '=' [\t ]* r1:r0:[0-9A-F] r2:[^0-9A-F] + ;; invalid input -> + ;; output "=" with hex digit and rescan from r2. + (write ?=) + (r0 = r2) + (write-repeat r1))) + (t + ;; r0:[^\t\r -~] + ;; invalid character found. + ;; -> ignore. + `((read r0) + (repeat)))))) + mel-ccl-256-table)) + ;; r1[0]:[\t ] + (loop + ,@(apply + 'append + (mapcar + (lambda (regnum) + (let ((reg (aref [r1 r2 r3 r4 r5] regnum))) + (apply + 'append + (mapcar + (lambda (bit) + (if (= bit 0) + (if (= regnum 0) + nil + `((read r0) + (if (r0 == ?\t) + (,reg = 0) + (if (r0 == ?\ ) + (,reg = 1) + ((r6 = ,(+ (* regnum 28) bit)) + (break)))))) + `((read r0) + (if (r0 == ?\ ) + (,reg |= ,(lsh 1 bit)) + (if (r0 != ?\t) + ((r6 = ,(+ (* regnum 28) bit)) + (break))))))) + mel-ccl-28-table)))) + '(0 1 2 3 4))) + ;; white space buffer exhaust. + ;; error: line length limit (76bytes) violation. + ;; -> ignore these white spaces. + (repeat)) + ,(if input-crlf + `(if (r0 == ?\r) + ((read r0) + (if (r0 == ?\n) + ;; trailing white spaces found. + ;; -> ignore these white spacs. + ((write ,(if output-crlf "\r\n" "\n")) + (read r0) + (repeat)) + ;; [\t ]* \r r0:[^\n] + ;; error: bare CR found. + ;; -> output white spaces and ignore bare CR. + )) + ;; [\t ]* r0:[^\r] + ;; middle white spaces found. + ) + `(if (r0 == ?\n) + ;; trailing white spaces found. + ;; -> ignore these white spacs. + ((write ,(if output-crlf "\r\n" "\n")) + (read r0) + (repeat)) + ;; [\t ]* r0:[^\n] + ;; middle white spaces found. + )) + ,@(apply + 'append + (mapcar + (lambda (regnum) + (let ((reg (aref [r1 r2 r3 r4 r5] regnum))) + (apply + 'append + (mapcar + (lambda (bit) + `((if (,reg & ,(lsh 1 bit)) + (write ?\ ) + (write ?\t)) + (if (r6 == ,(+ (* regnum 28) bit 1)) + (repeat)))) + mel-ccl-28-table)))) + '(0 1 2 3 4))) + (repeat) + )))) + +) + +(define-ccl-program mel-ccl-encode-quoted-printable-crlf-crlf + (mel-ccl-encode-quoted-printable-generic t t)) + +(define-ccl-program mel-ccl-encode-quoted-printable-crlf-lf + (mel-ccl-encode-quoted-printable-generic t nil)) + +(define-ccl-program mel-ccl-encode-quoted-printable-lf-crlf + (mel-ccl-encode-quoted-printable-generic nil t)) + +(define-ccl-program mel-ccl-encode-quoted-printable-lf-lf + (mel-ccl-encode-quoted-printable-generic nil nil)) + +(define-ccl-program mel-ccl-decode-quoted-printable-crlf-crlf + (mel-ccl-decode-quoted-printable-generic t t)) + +(define-ccl-program mel-ccl-decode-quoted-printable-crlf-lf + (mel-ccl-decode-quoted-printable-generic t nil)) + +(define-ccl-program mel-ccl-decode-quoted-printable-lf-crlf + (mel-ccl-decode-quoted-printable-generic nil t)) + +(define-ccl-program mel-ccl-decode-quoted-printable-lf-lf + (mel-ccl-decode-quoted-printable-generic nil nil)) + + +;;; @ coding system +;;; + +(make-ccl-coding-system + 'mel-ccl-uq-rev ?Q "MIME Q-encoding in unstructured field (reversed)" + 'mel-ccl-encode-uq 'mel-ccl-decode-q) + +(make-ccl-coding-system + 'mel-ccl-cq-rev ?Q "MIME Q-encoding in comment (reversed)" + 'mel-ccl-encode-cq 'mel-ccl-decode-q) + +(make-ccl-coding-system + 'mel-ccl-pq-rev ?Q "MIME Q-encoding in phrase (reversed)" + 'mel-ccl-encode-pq 'mel-ccl-decode-q) + +(make-ccl-coding-system + 'mel-ccl-quoted-printable-crlf-crlf-rev + ?Q "MIME Quoted-Printable-encoding (reversed)" + 'mel-ccl-encode-quoted-printable-crlf-crlf + 'mel-ccl-decode-quoted-printable-crlf-crlf) + +(make-ccl-coding-system + 'mel-ccl-quoted-printable-lf-crlf-rev + ?Q "MIME Quoted-Printable-encoding (LF encoding) (reversed)" + 'mel-ccl-encode-quoted-printable-crlf-lf + 'mel-ccl-decode-quoted-printable-lf-crlf) + +(make-ccl-coding-system + 'mel-ccl-quoted-printable-crlf-lf-rev + ?Q "MIME Quoted-Printable-encoding (LF internal) (reversed)" + 'mel-ccl-encode-quoted-printable-lf-crlf + 'mel-ccl-decode-quoted-printable-crlf-lf) + +(make-ccl-coding-system + 'mel-ccl-quoted-printable-lf-lf-rev + ?Q "MIME Quoted-Printable-encoding (LF encoding) (LF internal) (reversed)" + 'mel-ccl-encode-quoted-printable-lf-lf + 'mel-ccl-decode-quoted-printable-lf-lf) + + +;;; @ quoted-printable +;;; + +(check-broken-facility ccl-execute-eof-block-on-decoding-some) + +(unless-broken ccl-execute-eof-block-on-decoding-some + + (defun quoted-printable-ccl-encode-string (string) + "Encode STRING with quoted-printable encoding." + (decode-coding-string + string + 'mel-ccl-quoted-printable-lf-lf-rev)) + + (defun quoted-printable-ccl-encode-region (start end) + "Encode the region from START to END with quoted-printable encoding." + (interactive "r") + (decode-coding-region start end 'mel-ccl-quoted-printable-lf-lf-rev)) + + (defun quoted-printable-ccl-insert-encoded-file (filename) + "Encode contents of the file named as FILENAME, and insert it." + (interactive (list (read-file-name "Insert encoded file: "))) + (let ((coding-system-for-read 'mel-ccl-quoted-printable-lf-lf-rev)) + (insert-file-contents filename))) + + (mel-define-method-function + (mime-encode-string string (nil "quoted-printable")) + 'quoted-printable-ccl-encode-string) + (mel-define-method-function + (mime-encode-region start end (nil "quoted-printable")) + 'quoted-printable-ccl-encode-region) + (mel-define-method-function + (mime-insert-encoded-file filename (nil "quoted-printable")) + 'quoted-printable-ccl-insert-encoded-file) + ) + +(defun quoted-printable-ccl-decode-string (string) + "Decode quoted-printable encoded STRING." + (encode-coding-string + string + 'mel-ccl-quoted-printable-lf-lf-rev)) + +(defun quoted-printable-ccl-decode-region (start end) + "Decode the region from START to END with quoted-printable +encoding." + (interactive "r") + (encode-coding-region start end 'mel-ccl-quoted-printable-lf-lf-rev)) + +(defun quoted-printable-ccl-write-decoded-region + (start end filename) + "Decode quoted-printable encoded current region and write out to FILENAME." + (interactive + (list (region-beginning) (region-end) + (read-file-name "Write decoded region to file: "))) + (let ((coding-system-for-write 'mel-ccl-quoted-printable-lf-lf-rev)) + (write-region start end filename))) + +(mel-define-method-function + (mime-decode-string string (nil "quoted-printable")) + 'quoted-printable-ccl-decode-string) +(mel-define-method-function + (mime-decode-region start end (nil "quoted-printable")) + 'quoted-printable-ccl-decode-region) +(mel-define-method-function + (mime-write-decoded-region start end filename (nil "quoted-printable")) + 'quoted-printable-ccl-write-decoded-region) + + +;;; @ Q +;;; + +(defun q-encoding-ccl-encode-string (string &optional mode) + "Encode STRING to Q-encoding of encoded-word, and return the result. +MODE allows `text', `comment', `phrase' or nil. Default value is +`phrase'." + (decode-coding-string + string + (cond + ((eq mode 'text) 'mel-ccl-uq-rev) + ((eq mode 'comment) 'mel-ccl-cq-rev) + (t 'mel-ccl-pq-rev)))) + +(defun q-encoding-ccl-decode-string (string) + "Decode Q encoded STRING and return the result." + (encode-coding-string + string + 'mel-ccl-uq-rev)) + +(unless (featurep 'xemacs) + (defun q-encoding-ccl-encoded-length (string &optional mode) + (let ((status [nil nil nil nil nil nil nil nil nil])) + (fillarray status nil) + (ccl-execute-on-string + (cond + ((eq mode 'text) 'mel-ccl-count-uq) + ((eq mode 'comment) 'mel-ccl-count-cq) + (t 'mel-ccl-count-pq)) + status + string) + (aref status 0))) + ) + +(mel-define-method-function (encoded-text-encode-string string (nil "Q")) + 'q-encoding-ccl-encode-string) + +(mel-define-method encoded-text-decode-string (string (nil "Q")) + (if (and (string-match Q-encoded-text-regexp string) + (string= string (match-string 0 string))) + (q-encoding-ccl-decode-string string) + (error "Invalid encoded-text %s" string))) + + +;;; @ end +;;; + +(provide 'mel-q-ccl) + +;;; mel-q-ccl.el ends here diff --git a/mel.el b/mel.el index a044f2d..ccfc072 100644 --- a/mel.el +++ b/mel.el @@ -131,20 +131,31 @@ mmencode included in metamail or XEmacs package)." (error "Invalid encoded-text %s" string))) ) -(defvar mel-ccl-module +(mel-use-module 'mel-b-el '("base64" "B")) +(mel-use-module 'mel-q '("quoted-printable" "Q")) +(mel-use-module 'mel-g '("x-gzip64")) +(mel-use-module 'mel-u '("x-uue" "x-uuencode")) + +(defvar mel-b-ccl-module (and (featurep 'mule) (progn (require 'path-util) - (module-installed-p 'mel-ccl) + (module-installed-p 'mel-b-ccl) ))) -(mel-use-module 'mel-b-el '("base64" "B")) -(mel-use-module 'mel-q '("quoted-printable" "Q")) -(mel-use-module 'mel-g '("x-gzip64")) -(mel-use-module 'mel-u '("x-uue" "x-uuencode")) +(defvar mel-q-ccl-module + (and (featurep 'mule) + (progn + (require 'path-util) + (module-installed-p 'mel-q-ccl) + ))) + +(if mel-b-ccl-module + (mel-use-module 'mel-b-ccl '("base64" "B")) + ) -(if mel-ccl-module - (mel-use-module 'mel-ccl '("base64" "quoted-printable" "B" "Q")) +(if mel-q-ccl-module + (mel-use-module 'mel-q-ccl '("quoted-printable" "Q")) ) (if base64-dl-module @@ -203,11 +214,7 @@ ENCODING must be string.") ENCODING must be string.") (defun base64-encoded-length (string) - (let ((len (length string))) - (* (+ (/ len 3) - (if (= (mod len 3) 0) 0 1) - ) 4) - )) + (* (/ (+ (length string) 2) 3) 4)) (defsubst Q-encoding-printable-char-p (chr mode) (and (not (memq chr '(?= ?? ?_)))