8 (defconst ew-ccl-4-table
11 (defconst ew-ccl-16-table
12 '( 0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15))
14 (defconst ew-ccl-64-table
15 '( 0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15
16 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31
17 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47
18 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63))
20 (defconst ew-ccl-256-table
21 '( 0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15
22 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31
23 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47
24 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63
25 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79
26 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95
27 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111
28 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127
29 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143
30 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159
31 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175
32 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191
33 192 193 194 195 196 197 198 199 200 201 202 203 204 205 206 207
34 208 209 210 211 212 213 214 215 216 217 218 219 220 221 222 223
35 224 225 226 227 228 229 230 231 232 233 234 235 236 237 238 239
36 240 241 242 243 244 245 246 247 248 249 250 251 252 253 254 255))
38 (defconst ew-ccl-256-to-16-table
39 '(nil nil nil nil nil nil nil nil nil nil nil nil nil nil nil nil
40 nil nil nil nil nil nil nil nil nil nil nil nil nil nil nil nil
41 nil nil nil nil nil nil nil nil nil nil nil nil nil nil nil nil
42 0 1 2 3 4 5 6 7 8 9 nil nil nil nil nil nil
43 nil 10 11 12 13 14 15 nil nil nil nil nil nil nil nil nil
44 nil nil nil nil nil nil nil nil nil nil nil nil nil nil nil nil
45 nil nil nil nil nil nil nil nil nil nil nil nil nil nil nil nil
46 nil nil nil nil nil nil nil nil nil nil nil nil nil nil nil nil
47 nil nil nil nil nil nil nil nil nil nil nil nil nil nil nil nil
48 nil nil nil nil nil nil nil nil nil nil nil nil nil nil nil nil
49 nil nil nil nil nil nil nil nil nil nil nil nil nil nil nil nil
50 nil nil nil nil nil nil nil nil nil nil nil nil nil nil nil nil
51 nil nil nil nil nil nil nil nil nil nil nil nil nil nil nil nil
52 nil nil nil nil nil nil nil nil nil nil nil nil nil nil nil nil
53 nil nil nil nil nil nil nil nil nil nil nil nil nil nil nil nil
54 nil nil nil nil nil nil nil nil nil nil nil nil nil nil nil nil))
56 (defconst ew-ccl-16-to-256-table
57 '(?0 ?1 ?2 ?3 ?4 ?5 ?6 ?7 ?8 ?9 ?A ?B ?C ?D ?E ?F))
59 (defconst ew-ccl-high-table
62 (lambda (v) (nth (lsh v -4) ew-ccl-16-to-256-table))
65 (defconst ew-ccl-low-table
68 (lambda (v) (nth (logand v 15) ew-ccl-16-to-256-table))
71 (defconst ew-ccl-u-raw
72 (append "!@#$%&'()*+,-./0123456789:;<>@ABCDEFGHIJKLMNOPQRSTUVWXYZ[\\]^`abcdefghijklmnopqrstuvwxyz{|}~" ()))
74 (defconst ew-ccl-c-raw
75 (append "!@#$%&'*+,-./0123456789:;<>@ABCDEFGHIJKLMNOPQRSTUVWXYZ[]^`abcdefghijklmnopqrstuvwxyz{|}~" ()))
77 (defconst ew-ccl-p-raw
78 (append "!*+-/0123456789ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz" ()))
80 (defconst ew-ccl-256-to-64-table
81 '(nil nil nil nil nil nil nil nil
82 nil nil nil nil nil nil nil nil
83 nil nil nil nil nil nil nil nil
84 nil nil nil nil nil nil nil nil
85 nil nil nil nil nil nil nil nil
86 nil nil nil 62 nil nil nil 63
87 52 53 54 55 56 57 58 59
88 60 61 nil nil nil t nil nil
91 15 16 17 18 19 20 21 22
92 23 24 25 nil nil nil nil nil
93 nil 26 27 28 29 30 31 32
94 33 34 35 36 37 38 39 40
95 41 42 43 44 45 46 47 48
96 49 50 51 nil nil nil nil nil
97 nil nil nil nil nil nil nil nil
98 nil nil nil nil nil nil nil nil
99 nil nil nil nil nil nil nil nil
100 nil nil nil nil nil nil nil nil
101 nil nil nil nil nil nil nil nil
102 nil nil nil nil nil nil nil nil
103 nil nil nil nil nil nil nil nil
104 nil nil nil nil nil nil nil nil
105 nil nil nil nil nil nil nil nil
106 nil nil nil nil nil nil nil nil
107 nil nil nil nil nil nil nil nil
108 nil nil nil nil nil nil nil nil
109 nil nil nil nil nil nil nil nil
110 nil nil nil nil nil nil nil nil
111 nil nil nil nil nil nil nil nil
112 nil nil nil nil nil nil nil nil))
114 (defconst ew-ccl-64-to-256-table
115 '(?A ?B ?C ?D ?E ?F ?G ?H ?I ?J ?K ?L ?M ?N ?O ?P
116 ?Q ?R ?S ?T ?U ?V ?W ?X ?Y ?Z ?a ?b ?c ?d ?e ?f
117 ?g ?h ?i ?j ?k ?l ?m ?n ?o ?p ?q ?r ?s ?t ?u ?v
118 ?w ?x ?y ?z ?0 ?1 ?2 ?3 ?4 ?5 ?6 ?7 ?8 ?9 ?+ ?/))
122 (define-ccl-program ew-ccl-decode-q
142 ew-ccl-256-to-16-table)))
149 `((write r0 ,(vconcat
152 (logior (lsh r0 4) v))
156 ew-ccl-256-to-16-table)))
159 `(write-repeat ,r0))))
160 ew-ccl-256-table)))))))
162 (define-ccl-program ew-ccl-encode-uq
172 ((= r0 32) `(write-repeat ?_))
173 ((member r0 ew-ccl-u-raw) `(write-repeat ,r0))
177 (write r0 ,ew-ccl-high-table)
178 (write r0 ,ew-ccl-low-table)
181 (define-ccl-program ew-ccl-encode-cq
191 ((= r0 32) `(write-repeat ?_))
192 ((member r0 ew-ccl-c-raw) `(write-repeat ,r0))
196 (write r0 ,ew-ccl-high-table)
197 (write r0 ,ew-ccl-low-table)
200 (define-ccl-program ew-ccl-encode-pq
210 ((= r0 32) `(write-repeat ?_))
211 ((member r0 ew-ccl-p-raw) `(write-repeat ,r0))
215 (write r0 ,ew-ccl-high-table)
216 (write r0 ,ew-ccl-low-table)
219 (define-ccl-program ew-ccl-decode-b
229 ((or (eq v nil) (eq v t)) '(repeat))
230 (t `((r0 = ,(lsh v 2)) (break)))))
231 ew-ccl-256-to-64-table)))
238 ((or (eq v nil) (eq v t)) '(repeat))
239 ((= (lsh v -4) 0) `((write r0) (r0 = ,(lsh (logand v 15) 4)) (break)))
240 (t `((write (r0 | ,(lsh v -4))) (r0 = ,(lsh (logand v 15) 4)) (break)))))
241 ew-ccl-256-to-64-table)))
248 ((eq v nil) '(repeat))
250 ((= (lsh v -2) 0) `((write r0) (r0 = ,(lsh (logand v 3) 6)) (break)))
251 (t `((write (r0 | ,(lsh v -2))) (r0 = ,(lsh (logand v 3) 6)) (break)))))
252 ew-ccl-256-to-64-table)))
259 ((eq v nil) '(repeat))
261 (t `((write (r0 | ,v)) (break)))))
262 ew-ccl-256-to-64-table)))
267 ;; ew-ccl-encode-b works only 20.3 or later because CCL_EOF_BLOCK
268 ;; is not executed on 20.2 (or former?).
269 (define-ccl-program ew-ccl-encode-b
278 `((write ,(nth (lsh r1 -2) ew-ccl-64-to-256-table))
279 (r0 = ,(logand r1 3))))
286 `((write r0 ,(vconcat
289 (nth (logior (lsh r0 4)
291 ew-ccl-64-to-256-table))
293 (r0 = ,(logand r1 15))))
300 `((write r0 ,(vconcat
303 (nth (logior (lsh r0 2)
305 ew-ccl-64-to-256-table))
312 (nth r1 ew-ccl-64-to-256-table))
321 (nth (lsh r0 4) ew-ccl-64-to-256-table))
327 (nth (lsh r0 2) ew-ccl-64-to-256-table))
336 (make-coding-system 'ew-ccl-uq 4 ?Q "Q-encoding in unstructured field"
337 (cons ew-ccl-decode-q ew-ccl-encode-uq))
339 (make-coding-system 'ew-ccl-cq 4 ?Q "Q-encoding in comment"
340 (cons ew-ccl-decode-q ew-ccl-encode-cq))
342 (make-coding-system 'ew-ccl-pq 4 ?Q "Q-encoding in phrase"
343 (cons ew-ccl-decode-q ew-ccl-encode-pq))
345 (make-coding-system 'ew-ccl-b 4 ?B "B-encoding"
346 (cons ew-ccl-decode-b ew-ccl-encode-b))
352 (defconst ew-ccl-encode-b-is-broken
354 (not (string= (ccl-execute-on-string ew-ccl-encode-b (make-vector 9 nil) "a")
360 (defun ew-encode-uq (str)
361 (encode-coding-string (string-as-unibyte str) 'ew-ccl-uq))
363 (defun ew-encode-cq (str)
364 (encode-coding-string (string-as-unibyte str) 'ew-ccl-cq))
366 (defun ew-encode-pq (str)
367 (encode-coding-string (string-as-unibyte str) 'ew-ccl-pq))
369 (defun ew-decode-q (str)
370 (string-as-unibyte (decode-coding-string str 'ew-ccl-uq)))
373 (if (or base64-dl-module ew-ccl-encode-b-is-broken)
374 (defalias 'ew-encode-b 'base64-encode-string)
375 (defun ew-encode-b (str)
376 (encode-coding-string (string-as-unibyte str) 'ew-ccl-b)))
379 (defalias 'ew-decode-b 'base64-decode-string)
380 (defun ew-decode-b (str)
381 (string-as-unibyte (decode-coding-string str 'ew-ccl-b))))
385 (ew-encode-uq "\000\037 !\"#$%&'()*+,-./09:;<=>?@AZ[\\]^_`az{|}~\177\200\377")
386 (ew-encode-cq "\000\037 !\"#$%&'()*+,-./09:;<=>?@AZ[\\]^_`az{|}~\177\200\377")
387 (ew-encode-pq "\000\037 !\"#$%&'()*+,-./09:;<=>?@AZ[\\]^_`az{|}~\177\200\377")
388 (ew-encode-b "\000\037 !\"#$%&'()*+,-./09:;<=>?@AZ[\\]^_`az{|}~\177\200\377")
390 (ew-decode-q "a_b=20c")
391 (ew-decode-q "=92=A4=A2")
392 (ew-decode-b "SWYgeW91IGNhbiByZWFkIHRoaXMgeW8=")
398 "AB8gISIjJCUmJygpKissLS4vMDk6Ozw9Pj9AQVpbXF1eX2Bhent8fX5/gP8=")))
404 "=00=1F_!=22#$%&'=28=29*+,-./09:;<=3D>=3F@AZ[=5C]^=5F`az{|}~=7F=80=FF")))
411 (base64-decode-string
412 "AB8gISIjJCUmJygpKissLS4vMDk6Ozw9Pj9AQVpbXF1eX2Bhent8fX5/gP8=")))
417 (q-encoding-decode-string
418 "=00=1F_!=22#$%&'=28=29*+,-./09:;<=3D>=3F@AZ[=5C]^=5F`az{|}~=7F=80=FF")))