1 ;;; mel-ccl.el: CCL based encoder/decoder of Quoted-Printable
4 ;; Copyright (C) 1998 Tanaka Akira
6 ;; Author: Tanaka Akira <akr@jaist.ac.jp>
8 ;; Keywords: MIME, Quoted-Printable, Q-encoding
10 ;; This file is part of FLIM (Faithful Library about Internet Message).
12 ;; This program is free software; you can redistribute it and/or
13 ;; modify it under the terms of the GNU General Public License as
14 ;; published by the Free Software Foundation; either version 2, or (at
15 ;; your option) any later version.
17 ;; This program is distributed in the hope that it will be useful, but
18 ;; WITHOUT ANY WARRANTY; without even the implied warranty of
19 ;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
20 ;; General Public License for more details.
22 ;; You should have received a copy of the GNU General Public License
23 ;; along with GNU Emacs; see the file COPYING. If not, write to the
24 ;; Free Software Foundation, Inc., 59 Temple Place - Suite 330,
25 ;; Boston, MA 02111-1307, USA.
39 (defconst mel-ccl-16-table
40 '( 0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15))
42 (defconst mel-ccl-28-table
43 '( 0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15
44 16 17 18 19 20 21 22 23 24 25 26 27))
46 (defconst mel-ccl-256-table
47 '( 0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15
48 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31
49 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47
50 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63
51 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79
52 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95
53 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111
54 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127
55 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143
56 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159
57 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175
58 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191
59 192 193 194 195 196 197 198 199 200 201 202 203 204 205 206 207
60 208 209 210 211 212 213 214 215 216 217 218 219 220 221 222 223
61 224 225 226 227 228 229 230 231 232 233 234 235 236 237 238 239
62 240 241 242 243 244 245 246 247 248 249 250 251 252 253 254 255))
64 (defconst mel-ccl-256-to-16-table
65 '(nil nil nil nil nil nil nil nil nil nil nil nil nil nil nil nil
66 nil nil nil nil nil nil nil nil nil nil nil nil nil nil nil nil
67 nil nil nil nil nil nil nil nil nil nil nil nil nil nil nil nil
68 0 1 2 3 4 5 6 7 8 9 nil nil nil nil nil nil
69 nil 10 11 12 13 14 15 nil nil nil nil nil nil nil nil nil
70 nil nil nil nil nil nil nil nil nil nil nil nil nil nil nil nil
71 nil nil nil nil nil nil nil nil nil nil nil nil nil nil nil nil
72 nil nil nil nil nil nil nil nil nil nil nil nil nil nil nil nil
73 nil nil nil nil nil nil nil nil nil nil nil nil nil nil nil nil
74 nil nil nil nil nil nil nil nil nil nil nil nil nil nil nil nil
75 nil nil nil nil nil nil nil nil nil nil nil nil nil nil nil nil
76 nil nil nil nil nil nil nil nil nil nil nil nil nil nil nil nil
77 nil nil nil nil nil nil nil nil nil nil nil nil nil nil nil nil
78 nil nil nil nil nil nil nil nil nil nil nil nil nil nil nil nil
79 nil nil nil nil nil nil nil nil nil nil nil nil nil nil nil nil
80 nil nil nil nil nil nil nil nil nil nil nil nil nil nil nil nil))
82 (defconst mel-ccl-16-to-256-table
83 (mapcar 'char-int "0123456789ABCDEF"))
85 (defconst mel-ccl-high-table
88 (lambda (v) (nth (lsh v -4) mel-ccl-16-to-256-table))
91 (defconst mel-ccl-low-table
94 (lambda (v) (nth (logand v 15) mel-ccl-16-to-256-table))
97 (defconst mel-ccl-u-raw
101 ABCDEFGHIJKLMNOPQRSTUVWXYZ\
102 abcdefghijklmnopqrstuvwxyz\
103 !@#$%&'()*+,-./:;<>@[\\]^`{|}~"))
105 (defconst mel-ccl-c-raw
109 ABCDEFGHIJKLMNOPQRSTUVWXYZ\
110 abcdefghijklmnopqrstuvwxyz\
111 !@#$%&'*+,-./:;<>@[]^`{|}~"))
113 (defconst mel-ccl-p-raw
117 ABCDEFGHIJKLMNOPQRSTUVWXYZ\
118 abcdefghijklmnopqrstuvwxyz\
121 (defconst mel-ccl-qp-table
122 [enc enc enc enc enc enc enc enc enc wsp lf enc enc cr enc enc
123 enc enc enc enc enc enc enc enc enc enc enc enc enc enc enc enc
124 wsp raw raw raw raw raw raw raw raw raw raw raw raw raw raw raw
125 raw raw raw raw raw raw raw raw raw raw raw raw raw enc raw raw
126 raw raw raw raw raw raw raw raw raw raw raw raw raw raw raw raw
127 raw raw raw raw raw raw raw raw raw raw raw raw raw raw raw raw
128 raw raw raw raw raw raw raw raw raw raw raw raw raw raw raw raw
129 raw raw raw raw raw raw raw raw raw raw raw raw raw raw raw enc
130 enc enc enc enc enc enc enc enc enc enc enc enc enc enc enc enc
131 enc enc enc enc enc enc enc enc enc enc enc enc enc enc enc enc
132 enc enc enc enc enc enc enc enc enc enc enc enc enc enc enc enc
133 enc enc enc enc enc enc enc enc enc enc enc enc enc enc enc enc
134 enc enc enc enc enc enc enc enc enc enc enc enc enc enc enc enc
135 enc enc enc enc enc enc enc enc enc enc enc enc enc enc enc enc
136 enc enc enc enc enc enc enc enc enc enc enc enc enc enc enc enc
137 enc enc enc enc enc enc enc enc enc enc enc enc enc enc enc enc])
147 (define-ccl-program mel-ccl-decode-q
155 ((= r0 (char-int ?_))
157 ((= r0 (char-int ?=))
166 mel-ccl-256-to-16-table)))
173 `((write r0 ,(vconcat
176 (logior (lsh r0 4) v))
180 mel-ccl-256-to-16-table)))
183 `(write-repeat ,r0))))
184 mel-ccl-256-table))))))
188 (defun mel-ccl-encode-q-generic (raw)
197 ((= r0 32) `(write-repeat ?_))
198 ((member r0 raw) `(write-repeat ,r0))
202 (write r0 ,mel-ccl-high-table)
203 (write r0 ,mel-ccl-low-table)
206 ;; On xemacs, generated program counts iso-8859-1 8bit character as 6bytes.
207 (defun mel-ccl-count-q-length (raw)
215 (if (or (= r1 32) (member r1 raw))
216 '((r0 += 1) (repeat))
217 '((r0 += 3) (repeat))))
218 mel-ccl-256-table))))))
222 (define-ccl-program mel-ccl-encode-uq
223 (mel-ccl-encode-q-generic mel-ccl-u-raw))
224 (define-ccl-program mel-ccl-encode-cq
225 (mel-ccl-encode-q-generic mel-ccl-c-raw))
226 (define-ccl-program mel-ccl-encode-pq
227 (mel-ccl-encode-q-generic mel-ccl-p-raw))
229 (define-ccl-program mel-ccl-count-uq
230 (mel-ccl-count-q-length mel-ccl-u-raw))
231 (define-ccl-program mel-ccl-count-cq
232 (mel-ccl-count-q-length mel-ccl-c-raw))
233 (define-ccl-program mel-ccl-count-pq
234 (mel-ccl-count-q-length mel-ccl-p-raw))
240 (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)
242 `((,eof-reg = ,cr-eof) (read-if (,reg == ?\r)
243 ((,eof-reg = ,lf-eof) (read-if (,reg == ?\n)
247 `((,eof-reg = ,crlf-eof) (read-if (,reg == ?\n)
251 ;; Generated CCL program works not properly on 20.2 because CCL_EOF_BLOCK
253 (defun mel-ccl-encode-quoted-printable-generic (input-crlf output-crlf)
256 (r5 = 0) ; previous character is white space
266 (let ((tmp (aref mel-ccl-qp-table r0)))
268 ((eq r0 (char-int ?F))
270 ((r4 = 15) (read-if (r0 == ?r)
271 ((r4 = 16) (read-if (r0 == ?o)
272 ((r4 = 17) (read-if (r0 == ?m)
273 ((r4 = 18) (read-if (r0 == ? )
281 (write-repeat "From"))))
283 (write-repeat "Fro"))))
285 (write-repeat "Fr"))))
287 (write-repeat "F"))))
288 ((r3 = 0) (break)) ; RAW
290 ((eq r0 (char-int ?.))
292 ,(mel-ccl-try-to-read-crlf
295 `((write ,(if output-crlf "=2E\r\n" "=2E\n"))
302 (write-repeat ".=0D"))
305 ((r3 = 0) (break)) ; RAW
307 ((eq tmp 'raw) '((r3 = 0) (break))) ; RAW
308 ((eq tmp 'enc) '((r3 = 1) (break))) ; ENC
309 ((eq tmp 'wsp) '((r3 = 2) (break))) ; WSP
310 ((eq tmp 'cr) (if input-crlf
311 '((r3 = 3) (break)) ; CR
312 '((r3 = 1) (break)))) ; ENC
313 ((eq tmp 'lf) (if input-crlf
314 '((r3 = 1) (break)) ; ENC
315 '((r3 = 3) (break)))) ; CRLF
325 (write-read-repeat r0))
332 (write r0 ,mel-ccl-high-table)
334 (write-read-repeat r0 ,mel-ccl-low-table))
337 (write ,(if output-crlf "=\r\n=" "=\n="))
338 (write r0 ,mel-ccl-high-table)
340 (write-read-repeat r0 ,mel-ccl-low-table))
347 (write-read-repeat r0))
349 (write ,(if output-crlf "=\r\n" "=\n"))
351 (write-read-repeat r0))))
355 `((if ((r6 > 73) & r5)
358 (write ,(if output-crlf "=\r\n" "=\n"))))
365 (write ,(if output-crlf "=\r\n" "=\n"))
366 ,@(if output-crlf '((write ?\r)) '())
368 (write-read-repeat r0))
369 ;; noWSP ; r0:r3=CRLF
372 ,@(if output-crlf '((write ?\r)) '())
374 (write-read-repeat r0)))
376 ;; r0:r3={RAW,ENC,CR}
379 (lambda (after-cr after-raw-enc)
392 ;; r5=WSP ; CR:r3=CR r0=LF
395 (write ,(if output-crlf "=\r\n\r\n" "=\n\n"))
399 ;; r5=noWSP ; CR:r3=CR r0=LF
402 (write ,(if output-crlf "\r\n" "\n"))
422 (write ,(if output-crlf "=0D\r\n" "=0D\n"))
429 (write ,(if output-crlf "=\r\n=0D=0D" "=\n=0D=0D"))
431 ;; CR:r3=CR r0=noLFnorCR
434 (write ,(if output-crlf "=\r\n=0D" "=\n=0D"))
438 (write ,(if output-crlf "=\r\n=0D" "=\n=0D"))
441 (lambda (after-newline after-cr-nolf after-nonewline)
446 ;; r0:r3={RAW,ENC} r1
448 ;; r0:r3={RAW,ENC} r1=CR
451 ;; r0:r3={RAW,ENC} CR r1
453 ;; r0:r3=RAW CR r1=LF
455 ;; r0:r3=RAW CR r1=noLF
457 ;; r0:r3={RAW,ENC} r1:noCR
462 ;; r0:r3={RAW,ENC} r1
464 ;; r0:r3={RAW,ENC} r1=CRLF
466 ;; r0:r3={RAW,ENC} r1:noCRLF
468 ;; r0:r3={RAW,ENC} CR r1=LF
469 ;; r0:r3={RAW,ENC} r1=CRLF
474 ;; r0:r3=RAW CR r1=LF
477 (write ,(if output-crlf "\r\n" "\n"))
481 ;; r0:r3=ENC CR r1=LF
484 (write r0 ,mel-ccl-high-table)
485 (write r0 ,mel-ccl-low-table)
486 (write ,(if output-crlf "\r\n" "\n"))
490 ;; r0:r3={RAW,ENC} CR r1=noLF
493 ;; r0:r3=RAW CR r1:noLF
496 (write ,(if output-crlf "=\r\n" "=\n"))
501 ;; r0:r3=ENC CR r1:noLF
504 (write ,(if output-crlf "=\r\n=" "=\n="))
505 (write r0 ,mel-ccl-high-table)
506 (write r0 ,mel-ccl-low-table)
510 ;; r0:r3={RAW,ENC} r1:noCR
511 ;; r0:r3={RAW,ENC} r1:noCRLF
515 ;; r0:r3=RAW r1:noCRLF
518 (write ,(if output-crlf "=\r\n" "=\n"))
523 ;; r0:r3=ENC r1:noCRLF
526 (write ,(if output-crlf "=\r\n=" "=\n="))
527 (write r0 ,mel-ccl-high-table)
528 (write r0 ,mel-ccl-low-table)
533 ( ;(write "[EOF:") (write r4 ,mel-ccl-high-table) (write r4 ,mel-ccl-low-table) (write "]")
542 ;; 3: SOFTBREAK r0:r3=ENC ;
545 ((write ,(if output-crlf "=\r\n" "=\n")) (end))
546 ;; 5: SOFTBREAK r0:r3=WSP ;
547 ((write ,(if output-crlf "=\r\n" "=\n")) (end))
550 ((write "=0D") (end))
551 ((write ,(if output-crlf "=\r\n=0D" "=\n=0D")) (end)))
552 ;; 7: r5=WSP SOFTBREAK CR:r3=CR r0=LF ;
554 ;; 8: r5=noWSP CR:r3=CR r0=LF ;
556 ;; 9: (r6=73) ; CR:r3=CR r0=CR
557 ((write ,(if output-crlf "=\r\n=0D=0D" "=\n=0D=0D")) (end))
558 ;; 10: (r6=73) CR:r3=CR CR LF ;
560 ;; 11: ; r0:r3={RAW,ENC}
565 (write r0 ,mel-ccl-high-table)
566 (write r0 ,mel-ccl-low-table)
568 ;; 12: ; r0:r3={RAW,ENC} r1=CR
572 ((write ,(if output-crlf "=\r\n" "=\n"))
577 ((write ,(if output-crlf "=\r\n=" "=\n="))
578 (write r0 ,mel-ccl-high-table)
579 (write r0 ,mel-ccl-low-table)
582 ;; 13: r0:r3=RAW CR LF ;
583 ;; 13: r0:r3=RAW CRLF ;
585 ;; 14: r0:r3=ENC CR LF ;
586 ;; 14: r0:r3=ENC CRLF ;
593 ((write "Fro") (end))
595 ((write "From") (end))
596 ;; 19: r6=0 "From " ;
601 ((write ".=0D") (end))
604 ;; 23: r6=0 ".\r\n" ;
609 (defun mel-ccl-decode-quoted-printable-generic (input-crlf output-crlf)
617 (let ((tmp (aref mel-ccl-qp-table r0)))
619 ((eq tmp 'raw) `(write-read-repeat r0))
620 ((eq tmp 'wsp) (if (eq r0 (char-int ? ))
630 ;; hard line break found.
633 (write-read-repeat r0))
634 '(write-read-repeat r0))
636 ;; invalid control character (bare CR) found.
637 ;; -> ignore it and rescan from r0.
640 ;; invalid character (bare CR) found.
647 ;; invalid character (bare LF) found.
652 ;; hard line break found.
655 (write-read-repeat r0))
656 '(write-read-repeat r0))))
657 ((eq r0 (char-int ?=))
662 (if ((r0 == ? ) | r1)
664 ;; Skip transport-padding.
665 ;; It should check CR LF after
666 ;; transport-padding.
673 ;; '=' [\t ]* r0:[^\t ]
679 ((eq r0 (char-int ?\r))
681 ;; '=' [\t ]* r0='\r'
683 ;; '=' [\t ]* '\r' r0
685 ;; '=' [\t ]* '\r' r0='\n'
686 ;; soft line break found.
689 ;; '=' [\t ]* '\r' r0:[^\n]
691 ;; output "=" and rescan from r0.
694 ;; '=' [\t ]* r0='\r'
695 ;; invalid input (bare CR found) ->
696 ;; output "=" and rescan from next.
700 ((eq r0 (char-int ?\n))
702 ;; '=' [\t ]* r0='\n'
703 ;; invalid input (bare LF found) ->
704 ;; output "=" and rescan from next.
708 ;; '=' [\t ]* r0='\r\n'
709 ;; soft line break found.
712 ((setq tmp (nth r0 mel-ccl-256-to-16-table))
713 ;; '=' [\t ]* r0:[0-9A-F]
714 ;; upper nibble of hexadecimal digit found.
718 ;; '=' [\t ]* r0:[^\r0-9A-F]
720 ;; output "=" and rescan from r0.
724 ;; '=' [\t ]* r1:r0:[0-9A-F]
729 (if (setq tmp (nth r2 mel-ccl-256-to-16-table))
730 ;; '=' [\t ]* r1:r0:[0-9A-F] r2:[0-9A-F]
736 (logior (lsh r0 4) tmp))
738 ;; '=' [\t ]* r1:r0:[0-9A-F] r2:[^0-9A-F]
743 ;; '=' [\t ]* r1:r0:[0-9A-F] r2:[^0-9A-F]
745 ;; output "=" with hex digit and rescan from r2.
751 ;; invalid character found.
762 (let ((reg (aref [r1 r2 r3 r4 r5] regnum)))
775 ((r6 = ,(+ (* regnum 28) bit))
779 (,reg |= ,(lsh 1 bit))
781 ((r6 = ,(+ (* regnum 28) bit))
785 ;; white space buffer exhaust.
786 ;; error: line length limit (76bytes) violation.
787 ;; -> ignore these white spaces.
793 ;; trailing white spaces found.
794 ;; -> ignore these white spacs.
795 ((write ,(if output-crlf "\r\n" "\n"))
798 ;; [\t ]* \r r0:[^\n]
799 ;; error: bare CR found.
800 ;; -> output white spaces and ignore bare CR.
803 ;; middle white spaces found.
806 ;; trailing white spaces found.
807 ;; -> ignore these white spacs.
808 ((write ,(if output-crlf "\r\n" "\n"))
812 ;; middle white spaces found.
818 (let ((reg (aref [r1 r2 r3 r4 r5] regnum)))
823 `((if (,reg & ,(lsh 1 bit))
826 (if (r6 == ,(+ (* regnum 28) bit 1))
835 (define-ccl-program mel-ccl-encode-quoted-printable-crlf-crlf
836 (mel-ccl-encode-quoted-printable-generic t t))
838 (define-ccl-program mel-ccl-encode-quoted-printable-crlf-lf
839 (mel-ccl-encode-quoted-printable-generic t nil))
841 (define-ccl-program mel-ccl-encode-quoted-printable-lf-crlf
842 (mel-ccl-encode-quoted-printable-generic nil t))
844 (define-ccl-program mel-ccl-encode-quoted-printable-lf-lf
845 (mel-ccl-encode-quoted-printable-generic nil nil))
847 (define-ccl-program mel-ccl-decode-quoted-printable-crlf-crlf
848 (mel-ccl-decode-quoted-printable-generic t t))
850 (define-ccl-program mel-ccl-decode-quoted-printable-crlf-lf
851 (mel-ccl-decode-quoted-printable-generic t nil))
853 (define-ccl-program mel-ccl-decode-quoted-printable-lf-crlf
854 (mel-ccl-decode-quoted-printable-generic nil t))
856 (define-ccl-program mel-ccl-decode-quoted-printable-lf-lf
857 (mel-ccl-decode-quoted-printable-generic nil nil))
863 (make-ccl-coding-system
864 'mel-ccl-uq-rev ?Q "MIME Q-encoding in unstructured field (reversed)"
865 'mel-ccl-encode-uq 'mel-ccl-decode-q)
867 (make-ccl-coding-system
868 'mel-ccl-cq-rev ?Q "MIME Q-encoding in comment (reversed)"
869 'mel-ccl-encode-cq 'mel-ccl-decode-q)
871 (make-ccl-coding-system
872 'mel-ccl-pq-rev ?Q "MIME Q-encoding in phrase (reversed)"
873 'mel-ccl-encode-pq 'mel-ccl-decode-q)
875 (make-ccl-coding-system
876 'mel-ccl-quoted-printable-crlf-crlf-rev
877 ?Q "MIME Quoted-Printable-encoding (reversed)"
878 'mel-ccl-encode-quoted-printable-crlf-crlf
879 'mel-ccl-decode-quoted-printable-crlf-crlf)
881 (make-ccl-coding-system
882 'mel-ccl-quoted-printable-lf-crlf-rev
883 ?Q "MIME Quoted-Printable-encoding (LF encoding) (reversed)"
884 'mel-ccl-encode-quoted-printable-crlf-lf
885 'mel-ccl-decode-quoted-printable-lf-crlf)
887 (make-ccl-coding-system
888 'mel-ccl-quoted-printable-crlf-lf-rev
889 ?Q "MIME Quoted-Printable-encoding (LF internal) (reversed)"
890 'mel-ccl-encode-quoted-printable-lf-crlf
891 'mel-ccl-decode-quoted-printable-crlf-lf)
893 (make-ccl-coding-system
894 'mel-ccl-quoted-printable-lf-lf-rev
895 ?Q "MIME Quoted-Printable-encoding (LF encoding) (LF internal) (reversed)"
896 'mel-ccl-encode-quoted-printable-lf-lf
897 'mel-ccl-decode-quoted-printable-lf-lf)
900 ;;; @ quoted-printable
903 (check-broken-facility ccl-execute-eof-block-on-decoding-some)
905 (unless-broken ccl-execute-eof-block-on-decoding-some
907 (defun quoted-printable-ccl-encode-string (string)
908 "Encode STRING with quoted-printable encoding."
909 (decode-coding-string
911 'mel-ccl-quoted-printable-lf-lf-rev))
913 (defun quoted-printable-ccl-encode-region (start end)
914 "Encode the region from START to END with quoted-printable encoding."
916 (decode-coding-region start end 'mel-ccl-quoted-printable-lf-lf-rev))
918 (defun quoted-printable-ccl-insert-encoded-file (filename)
919 "Encode contents of the file named as FILENAME, and insert it."
920 (interactive (list (read-file-name "Insert encoded file: ")))
921 (let ((coding-system-for-read 'mel-ccl-quoted-printable-lf-lf-rev))
922 (insert-file-contents filename)))
924 (mel-define-method-function
925 (mime-encode-string string (nil "quoted-printable"))
926 'quoted-printable-ccl-encode-string)
927 (mel-define-method-function
928 (mime-encode-region start end (nil "quoted-printable"))
929 'quoted-printable-ccl-encode-region)
930 (mel-define-method-function
931 (mime-insert-encoded-file filename (nil "quoted-printable"))
932 'quoted-printable-ccl-insert-encoded-file)
935 (defun quoted-printable-ccl-decode-string (string)
936 "Decode quoted-printable encoded STRING."
937 (encode-coding-string
939 'mel-ccl-quoted-printable-lf-lf-rev))
941 (defun quoted-printable-ccl-decode-region (start end)
942 "Decode the region from START to END with quoted-printable
945 (encode-coding-region start end 'mel-ccl-quoted-printable-lf-lf-rev))
947 (defun quoted-printable-ccl-write-decoded-region
949 "Decode quoted-printable encoded current region and write out to FILENAME."
951 (list (region-beginning) (region-end)
952 (read-file-name "Write decoded region to file: ")))
953 (let ((coding-system-for-write 'mel-ccl-quoted-printable-lf-lf-rev))
954 (write-region start end filename)))
956 (mel-define-method-function
957 (mime-decode-string string (nil "quoted-printable"))
958 'quoted-printable-ccl-decode-string)
959 (mel-define-method-function
960 (mime-decode-region start end (nil "quoted-printable"))
961 'quoted-printable-ccl-decode-region)
962 (mel-define-method-function
963 (mime-write-decoded-region start end filename (nil "quoted-printable"))
964 'quoted-printable-ccl-write-decoded-region)
970 (defun q-encoding-ccl-encode-string (string &optional mode)
971 "Encode STRING to Q-encoding of encoded-word, and return the result.
972 MODE allows `text', `comment', `phrase' or nil. Default value is
974 (decode-coding-string
977 ((eq mode 'text) 'mel-ccl-uq-rev)
978 ((eq mode 'comment) 'mel-ccl-cq-rev)
979 (t 'mel-ccl-pq-rev))))
981 (defun q-encoding-ccl-decode-string (string)
982 "Decode Q encoded STRING and return the result."
983 (encode-coding-string
987 (unless (featurep 'xemacs)
988 (defun q-encoding-ccl-encoded-length (string &optional mode)
989 (let ((status [nil nil nil nil nil nil nil nil nil]))
990 (fillarray status nil)
991 (ccl-execute-on-string
993 ((eq mode 'text) 'mel-ccl-count-uq)
994 ((eq mode 'comment) 'mel-ccl-count-cq)
995 (t 'mel-ccl-count-pq))
1001 (mel-define-method-function (encoded-text-encode-string string (nil "Q"))
1002 'q-encoding-ccl-encode-string)
1004 (mel-define-method encoded-text-decode-string (string (nil "Q"))
1005 (if (and (string-match Q-encoded-text-regexp string)
1006 (string= string (match-string 0 string)))
1007 (q-encoding-ccl-decode-string string)
1008 (error "Invalid encoded-text %s" string)))
1014 (provide 'mel-q-ccl)
1016 ;;; mel-q-ccl.el ends here