TESTPAT

   1 ;----------------------------------------------------------------------------
   2 ;-------- This sequece of HYPHEN-MINUS is 76 bytes long. --------------------
   3 ;----------------------------------------------------------------------------
   4
   5 ; options:
   6 ;encode-sticked-comment-as-atom    ; violate the policy preserving structures
   7 ;ignore-75bytes-limit              ; violate RFC2047
   8 ;ignore-76bytes-limit              ; violate RFC2047
   9 ;permit-sticked-comment            ; violate RFC2047
  10 ;permit-sticked-special            ; violate RFC2047
  11 ;separate-sticked-comment          ; violate the policy preserving absence of space
  12 ;separate-sticked-special          ; violate the policy preserving absence of space
  13 ;zero-characters-encoded-word-hack ; violate common sense (very tricky)
  14 ;quoted-encoded-word               ; violate character sequence semantics
  15
  16 ;;; test driver
  17
  18 (setq decode-test 'decode-flam)
  19 (setq encode-test 'encode-flam)
  20
  21 (setq decode-succ-count 0)
  22 (setq decode-all-count 0)
  23 (defun decode (src dsts &rest opts)
  24   (if (stringp dsts) (setq dsts (list dsts)))
  25   (setq decode-all-count (1+ decode-all-count))
  26   (let ((res (condition-case nil
  27                (apply decode-test src dsts opts)
  28                (error nil))))
  29     (if (eq res t)
  30       (progn
  31         (setq decode-succ-count (1+ decode-succ-count))
  32         (insert "\n'dsucc"))
  33       (insert (format "\n%S\n'dfail" res)))
  34     res))
  35
  36 (setq encode-succ-count 0)
  37 (setq encode-all-count 0)
  38 (defun encode (src dsts &rest opts)
  39   (if (stringp dsts) (setq dsts (list dsts)))
  40   (setq encode-all-count (1+ decode-all-count))
  41   (let ((res (condition-case nil
  42                (apply encode-test src dsts opts)
  43                (error nil))))
  44     (if (eq res t)
  45       (progn
  46         (setq encode-succ-count (1+ encode-succ-count))
  47         (insert "\n'esucc"))
  48       (insert (format "\n%S\n'efail" res)))
  49     res))
  50
  51 (defun report ()
  52   (insert
  53     (format "\n\"Decode: %d/%d  Encode: %d/%d\""
  54       decode-succ-count decode-all-count
  55       encode-succ-count encode-all-count)))
  56
  57 ;;; FLAM specific part (FLIM is OK)
  58
  59 (defun decode-flam (src dsts &rest opts)
  60   (setq eword-lexical-analyze-cache nil)
  61   (setq eword-decode-sticked-encoded-word
  62     (or (memq 'permit-sticked-comment opts)
  63         (memq 'permit-sticked-special opts)))
  64   (setq eword-decode-quoted-encoded-word nil)
  65   (with-temp-buffer
  66     (insert src "\n" mail-header-separator)
  67     (eword-decode-header 'us-ascii mail-header-separator)
  68     (goto-char (point-min))
  69     (std11-narrow-to-header mail-header-separator)
  70     (std11-field-end)
  71     (let ((result (buffer-substring (point-min) (point))))
  72       (if (member result dsts) t result))))
  73
  74 (defun encode-flam (src dsts &rest opts)
  75   (setq eword-lexical-analyze-cache nil)
  76   (setq eword-decode-sticked-encoded-word nil)
  77   (setq eword-decode-quoted-encoded-word nil)
  78   (with-temp-buffer
  79     (insert src "\n" mail-header-separator)
  80     (goto-char (point-min))
  81     (eword-encode-header 'us-ascii)
  82     (goto-char (point-min))
  83     (std11-narrow-to-header mail-header-separator)
  84     (std11-field-end)
  85     (let ((result (buffer-substring (point-min) (point))))
  86       (if (member result dsts) t result))))
  87
  88 ;;;start-test;;;
  89
  90 ;; Section 1: Decoding examples from RFC2047
  91
  92 (decode
  93 "From: =?US-ASCII?Q?Keith_Moore?= <moore@cs.utk.edu>"
  94 "From: Keith Moore <moore@cs.utk.edu>")
  95
  96 (decode
  97 "To: =?ISO-8859-1?Q?Keld_J=F8rn_Simonsen?= <keld@dkuug.dk>"
  98 "To: Keld J\e.A\eNxrn Simonsen <keld@dkuug.dk>")\e*B
  99
 100 (decode
 101 "CC: =?ISO-8859-1?Q?Andr=E9?= Pirard <PIRARD@vm1.ulg.ac.be>"
 102 "CC: Andr\e.A\eNi Pirard <PIRARD@vm1.ulg.ac.be>")\e*B
 103
 104 (decode
 105 "Subject: =?ISO-8859-1?B?SWYgeW91IGNhbiByZWFkIHRoaXMgeW8=?=
 106  =?ISO-8859-2?B?dSB1bmRlcnN0YW5kIHRoZSBleGFtcGxlLg==?="
 107 "Subject: If you can read this you understand the example.")
 108
 109 (decode
 110 "From: =?ISO-8859-1?Q?Olle_J=E4rnefors?= <ojarnef@admin.kth.se>"
 111 "From: Olle J\e.A\eNdrnefors <ojarnef@admin.kth.se>")\e*B
 112
 113 (decode
 114 "From: =?ISO-8859-1?Q?Patrik_F=E4ltstr=F6m?= <paf@nada.kth.se>"
 115 "From: Patrik F\e.A\eNdltstr\eNvm <paf@nada.kth.se>")\e*B
 116
 117 (decode
 118 "From: Nathaniel Borenstein <nsb@thumper.bellcore.com>
 119         (=?iso-8859-8?b?7eXs+SDv4SDp7Oj08A==?=)"
 120 "From: Nathaniel Borenstein <nsb@thumper.bellcore.com>  (\e.H\eNm\eNe\eNl\eNy \eNo\eNa \eNi\eNl\eNh\eNt\eNp)")\e*B
 121
 122 (decode
 123 "From: foo@bar.baz (=?ISO-8859-1?Q?a?=)"
 124 "From: foo@bar.baz (a)")
 125
 126 (decode
 127 "From: foo@bar.baz (=?ISO-8859-1?Q?a?= b)"
 128 "From: foo@bar.baz (a b)")
 129
 130 (decode
 131 "From: foo@bar.baz (=?ISO-8859-1?Q?a?= =?ISO-8859-1?Q?b?=)"
 132 "From: foo@bar.baz (ab)")
 133
 134 (decode
 135 "From: foo@bar.baz (=?ISO-8859-1?Q?a?=  =?ISO-8859-1?Q?b?=)"
 136 "From: foo@bar.baz (ab)")
 137
 138 (decode
 139 "From: foo@bar.baz (=?ISO-8859-1?Q?a?=
 140         =?ISO-8859-1?Q?b?=)"
 141 "From: foo@bar.baz (ab)")
 142
 143 (decode
 144 "From: foo@bar.baz (=?ISO-8859-1?Q?a_b?=)"
 145 "From: foo@bar.baz (a b)")
 146
 147 (decode
 148 "From: foo@bar.baz (=?ISO-8859-1?Q?a?= =?ISO-8859-2?Q?_b?=)"
 149 "From: foo@bar.baz (a b)")
 150
 151 (decode
 152 "Subject: (=?ISO-8859-1?Q?a?=)"
 153 "Subject: (=?ISO-8859-1?Q?a?=)")
 154
 155 (decode
 156 "Subject: (=?ISO-8859-1?Q?a?= b)"
 157 "Subject: (=?ISO-8859-1?Q?a?= b)")
 158
 159 (decode
 160 "Subject: (=?ISO-8859-1?Q?a?= =?ISO-8859-1?Q?b?=)"
 161 "Subject: (=?ISO-8859-1?Q?a?= =?ISO-8859-1?Q?b?=)")
 162
 163 (decode
 164 "Subject: (=?ISO-8859-1?Q?a?=  =?ISO-8859-1?Q?b?=)"
 165 "Subject: (=?ISO-8859-1?Q?a?=  =?ISO-8859-1?Q?b?=)")
 166
 167 (decode
 168 "Subject: (=?ISO-8859-1?Q?a?=
 169         =?ISO-8859-1?Q?b?=)"
 170 "Subject: (=?ISO-8859-1?Q?a?=   =?ISO-8859-1?Q?b?=)")
 171
 172 (decode
 173 "Subject: (=?ISO-8859-1?Q?a_b?=)"
 174 "Subject: (=?ISO-8859-1?Q?a_b?=)")
 175
 176 (decode
 177 "Subject: (=?ISO-8859-1?Q?a?= =?ISO-8859-2?Q?_b?=)"
 178 "Subject: (=?ISO-8859-1?Q?a?= =?ISO-8859-2?Q?_b?=)")
 179
 180 ;; Section 2: Decoding trivial inputs.
 181
 182 (decode
 183 "From: =?ISO-2022-JP?B?GyRCJCIbKEI=?= <akr@jaist.ac.jp>"
 184 "From: \e$B$"\e(B <akr@jaist.ac.jp>")
 185
 186 (decode
 187 "From: =?ISO-2022-JP?B?GyRCJCIbKEI=?= =?ISO-2022-JP?B?GyRCJCQbKEI=?=
 188  <akr@jaist.ac.jp>"
 189 "From: \e$B$"$$\e(B <akr@jaist.ac.jp>")
 190
 191 (decode
 192 "From: =?ISO-2022-JP?B?GyRCJCIbKEI=?=
 193  =?ISO-2022-JP?B?GyRCJCQbKEI=?=
 194  <akr@jaist.ac.jp>"
 195 "From: \e$B$"$$\e(B <akr@jaist.ac.jp>")
 196
 197 (decode
 198 "From: =?ISO-2022-JP?B?GyRCJCIbKEI=?=
 199         =?ISO-2022-JP?B?GyRCJCQbKEI=?=
 200  <akr@jaist.ac.jp>"
 201 "From: \e$B$"$$\e(B <akr@jaist.ac.jp>")
 202
 203 (decode
 204 "From: akr@jaist.ac.jp (=?ISO-2022-JP?B?GyRCJCIbKEI=?=
 205  =?ISO-2022-JP?B?GyhC?=(=?ISO-2022-JP?B?GyRCJCQbKEI=?=
 206  =?ISO-2022-JP?B?GyhC?=)=?ISO-2022-JP?B?GyRCJCYbKEI=?=)"
 207 "From: akr@jaist.ac.jp (\e$B$"\e(B(\e$B$$\e(B)\e$B$&\e(B)")
 208
 209 (decode
 210 "From: a=?ISO-2022-JP?B?GyRCJCIbKEI=?= <akr@jaist.ac.jp>"
 211 "From: a=?ISO-2022-JP?B?GyRCJCIbKEI=?= <akr@jaist.ac.jp>")
 212
 213 (decode
 214 "From: =?ISO-2022-JP?B?GyRCJCIbKEI=?=b <akr@jaist.ac.jp>"
 215 "From: =?ISO-2022-JP?B?GyRCJCIbKEI=?=b <akr@jaist.ac.jp>")
 216
 217 (decode
 218 "From: a=?ISO-2022-JP?B?GyRCJCIbKEI=?=b <akr@jaist.ac.jp>"
 219 "From: a=?ISO-2022-JP?B?GyRCJCIbKEI=?=b <akr@jaist.ac.jp>")
 220
 221 (decode
 222 "From: \"=?ISO-2022-JP?B?GyRCJCIbKEI=?=\" <akr@jaist.ac.jp>"
 223 "From: \"=?ISO-2022-JP?B?GyRCJCIbKEI=?=\" <akr@jaist.ac.jp>")
 224
 225 (decode
 226 "From: \"\\\"\\\\\" =?ISO-2022-JP?B?GyRCJCIbKEI=?= \"\\\"\\\\\" <akr@jaist.ac.jp>"
 227 "From: \"\\\"\\\\\" \e$B$"\e(B \"\\\"\\\\\" <akr@jaist.ac.jp>")
 228
 229 (decode
 230 "From: < =?ISO-2022-JP?B?GyRCJCIbKEI=?= @jaist.ac.jp>"
 231 "From: < =?ISO-2022-JP?B?GyRCJCIbKEI=?= @jaist.ac.jp>")
 232
 233 (decode
 234 "From: =?ISO-2022-JP?Q?=1B=24BAA=1B=28B?= <akr@jaist.ac.jp>"
 235 "From: \e$BAA\e(B <akr@jaist.ac.jp>")
 236
 237 (decode
 238 "From: =?ISO-2022-JP?Q?=1B$BAA=1B(B?= ) <akr@jaist.ac.jp>"
 239 "From: =?ISO-2022-JP?Q?=1B$BAA=1B(B?= ) <akr@jaist.ac.jp>")
 240
 241 (decode
 242 "From: (=?US-ASCII?Q?(?=)foo@bar.baz(=?US-ASCII?Q?))baz@bar.foo(?=)"
 243 "From: (=?US-ASCII?Q?(?=)foo@bar.baz(=?US-ASCII?Q?))baz@bar.foo(?=)")
 244
 245 (decode
 246 "From: =?ISO-2022-JP?B?GyRCJCIbKEIoGyRCJCIbKEIp?= <akr@jaist.ac.jp>"
 247 "From: \"\e$B$"\e(B(\e$B$"\e(B)\" <akr@jaist.ac.jp>")
 248
 249 (decode
 250 "From: =?US-ASCII?Q?=28?= <akr@jaist.ac.jp>, =?US-ASCII?Q?=29?= <akr@jaist.ac.jp>"
 251 "From: \"(\" <akr@jaist.ac.jp>, \")\" <akr@jaist.ac.jp>")
 252
 253 (decode
 254 "From: =?ISO-2022-JP?B?YSJiGyRCJCIbKEJjXA==?= <akr@jaist.ac.jp>"
 255 "From: \"a\\\"b\e$B$"\e(Bc\\\\\" <akr@jaist.ac.jp>")
 256
 257 (decode
 258 "Subject: =?ISO-2022-JP?B?GyRCJCIbKEI=?="
 259 "Subject: \e$B$"\e(B")
 260
 261 (decode
 262 "Subject: a=?ISO-2022-JP?B?GyRCJCIbKEI=?="
 263 "Subject: a=?ISO-2022-JP?B?GyRCJCIbKEI=?=")
 264
 265 (decode
 266 "Subject: =?ISO-2022-JP?B?GyRCJCIbKEI=?=b"
 267 "Subject: =?ISO-2022-JP?B?GyRCJCIbKEI=?=b")
 268
 269 (decode
 270 "Subject: a=?ISO-2022-JP?B?GyRCJCIbKEI=?=b"
 271 "Subject: a=?ISO-2022-JP?B?GyRCJCIbKEI=?=b")
 272
 273 (decode
 274 "Subject: (a)=?ISO-2022-JP?B?GyRCJCIbKEI=?="
 275 "Subject: (a)=?ISO-2022-JP?B?GyRCJCIbKEI=?=")
 276
 277 (decode
 278 "Subject: =?ISO-2022-JP?B?GyRCJCIbKEI=?=(b)"
 279 "Subject: =?ISO-2022-JP?B?GyRCJCIbKEI=?=(b)")
 280
 281 (decode
 282 "Subject: (a)=?ISO-2022-JP?B?GyRCJCIbKEI=?=(b)"
 283 "Subject: (a)=?ISO-2022-JP?B?GyRCJCIbKEI=?=(b)")
 284
 285 (decode
 286 "Subject: \"a\"=?ISO-2022-JP?B?GyRCJCIbKEI=?="
 287 "Subject: \"a\"=?ISO-2022-JP?B?GyRCJCIbKEI=?=")
 288
 289 (decode
 290 "Subject: =?ISO-2022-JP?B?GyRCJCIbKEI=?=\"b\""
 291 "Subject: =?ISO-2022-JP?B?GyRCJCIbKEI=?=\"b\"")
 292
 293 (decode
 294 "Subject: \"a\"=?ISO-2022-JP?B?GyRCJCIbKEI=?=\"b\""
 295 "Subject: \"a\"=?ISO-2022-JP?B?GyRCJCIbKEI=?=\"b\"")
 296
 297 (decode
 298 "Subject: (Re: =?ISO-2022-JP?B?GyRCJCIbKEI=?=)"
 299 "Subject: (Re: =?ISO-2022-JP?B?GyRCJCIbKEI=?=)")
 300
 301 (decode
 302 "Subject: =?ISO-2022-JP?B?GyRCJCIbKEI=?=:"
 303 "Subject: =?ISO-2022-JP?B?GyRCJCIbKEI=?=:")
 304
 305 (decode
 306 "Subject: =?ISO-2022-JP?B??="
 307 "Subject: =?ISO-2022-JP?B??=")
 308
 309 (decode
 310 "Subject: =?ISO-2022-JP?B?GyRCJCIbKEI=?= a
 311  =?ISO-2022-JP?B?GyRCJCQbKEI=?="
 312 "Subject: \e$B$"\e(B a \e$B$$\e(B")
 313
 314 (decode
 315 "Subject: =?ISO-2022-JP?B?GyRCMCQbKEIgICAgICAgICAgICAgICAgICAgICAgICAgICAg?=
 316  =?US-ASCII?Q?____________________________________________________________?=
 317  =?ISO-2022-JP?B?ICAgICAgICAgICAgICAgICAgICAgICAgICAgICAgICAgIBskQlJfGyhC?="
 318 "Subject: \e$B0$\e(B                                                                                                                          \e$BR_\e(B")
 319
 320 (decode
 321 "From: =?ISO-8859-1?Q?abcdefghijklmnopqrst=A1=28=29=22=5C?= <akr@jaist.ac.jp>"
 322 "From: \"abcdefghijklmnopqrst\e.A\eN!()\\\"\\\\\" <akr@jaist.ac.jp>")\e*B
 323
 324 (decode
 325 "Subject: ?= =?"
 326 "Subject: ?= =?")
 327
 328 (decode
 329 "Subject: \" =?ISO-2022-JP?B?GyRCJCIbKEI=?= \""
 330 "Subject: \" \e$B$"\e(B \"")
 331
 332 (decode
 333 "From: \"\\\\\" =?ISO-2022-JP?B?GyRCJCIbKEI=?= \"\" <akr@jaist.ac.jp>"
 334 "From: \"\\\\\" \e$B$"\e(B \"\" <akr@jaist.ac.jp>")
 335
 336 (decode
 337 "Subject: =?ISO-2022-JP?Q?=1B$B$\"=1B(B_=1B$B$\"=1B(B?="
 338 "Subject: \e$B$"\e(B \e$B$"\e(B")
 339
 340 (decode
 341 "Subject: =?ISO-2022-JP?Q?=1B$B$\"=1B(B =1B$B$\"=1B(B?="
 342 "Subject: =?ISO-2022-JP?Q?=1B$B$\"=1B(B =1B$B$\"=1B(B?=")
 343
 344 (decode
 345 "Subject: =?ISO-2022-JP?B?GyRCJCIbKEI=?= a =?ISO-8859-8?Q?=E0?="
 346 "Subject: \e$B$"\e(B a \e.H\eN`")\e*B
 347
 348 (decode
 349 "Subject: =?ISO-8859-8?Q?=E0?= =?ISO-2022-JP?B?GyRCTm0bKEI=?="
 350 "Subject: \e.H\eN`\e$BNm\e(B")\e*B
 351
 352 (decode
 353 "Subject: =?ISO-8859-8?Q?=E0_?= =?ISO-2022-JP?B?GyRCTm0bKEI=?="
 354 "Subject: \e.H\eN` \e$BNm\e(B")\e*B
 355
 356 (decode
 357 "Subject: =?ISO-2022-JP-2?B?Gy5GG05DGyRCNFg/dBsoQg==?="
 358 "Subject: \e.F\eNC\e$B4X?t\e(B")\e*B
 359
 360 (decode
 361 "Subject: =?ISO-8859-7?Q?=C3?= =?ISO-2022-JP?B?GyRCNFg/dBsoQg==?="
 362 "Subject: \e.F\eNC\e$B4X?t\e(B")\e*B
 363
 364 (decode
 365 "Subject: =?Shift_JIS?B?gqA=?="
 366 "Subject: \e$B$"\e(B"
 367 'quoted-encoded-word)
 368
 369 (decode
 370 "Subject: =?EUC-JP?B?pKI=?="
 371 "Subject: \e$B$"\e(B"
 372 'quoted-encoded-word)
 373
 374 (decode
 375 "Subject: = =?ISO-2022-JP?B?GyRCJCIbKEI=?="
 376 "Subject: = \e$B$"\e(B")
 377
 378 (decode
 379 "Subject: =? =?ISO-2022-JP?B?GyRCJCIbKEI=?="
 380 "Subject: =? \e$B$"\e(B")
 381
 382 (decode
 383 "Subject: =?ISO-2022-JP =?ISO-2022-JP?B?GyRCJCIbKEI=?="
 384 "Subject: =?ISO-2022-JP \e$B$"\e(B")
 385
 386 (decode
 387 "Subject: =?ISO-2022-JP? =?ISO-2022-JP?B?GyRCJCIbKEI=?="
 388 "Subject: =?ISO-2022-JP? \e$B$"\e(B")
 389
 390 (decode
 391 "Subject: =?ISO-2022-JP?B =?ISO-2022-JP?B?GyRCJCIbKEI=?="
 392 "Subject: =?ISO-2022-JP?B \e$B$"\e(B")
 393
 394 (decode
 395 "Subject: =?ISO-2022-JP?B? =?ISO-2022-JP?B?GyRCJCIbKEI=?="
 396 "Subject: =?ISO-2022-JP?B? \e$B$"\e(B")
 397
 398 (decode
 399 "Subject: =?ISO-2022-JP?B?GyRCJCIbKEI =?ISO-2022-JP?B?GyRCJCIbKEI=?="
 400 "Subject: =?ISO-2022-JP?B?GyRCJCIbKEI \e$B$"\e(B")
 401
 402 (decode
 403 "Subject: =?ISO-2022-JP?B?GyRCJCIbKEI= =?ISO-2022-JP?B?GyRCJCIbKEI=?="
 404 "Subject: =?ISO-2022-JP?B?GyRCJCIbKEI= \e$B$"\e(B")
 405
 406 (decode
 407 "Subject: =?ISO-2022-JP?B?GyRCJCIbKEI=? =?ISO-2022-JP?B?GyRCJCIbKEI=?="
 408 "Subject: =?ISO-2022-JP?B?GyRCJCIbKEI=? \e$B$"\e(B")
 409
 410 (decode
 411 "Subject: =?ISO-2022-JP?B?GyRCJCIbKEI=?= =?ISO-2022-JP?B?GyRCJCIbKEI=?="
 412 "Subject: \e$B$"$"\e(B")
 413
 414 (decode
 415 "Subject: ==?ISO-2022-JP?B?GyRCJCIbKEI=?="
 416 "Subject: ==?ISO-2022-JP?B?GyRCJCIbKEI=?=")
 417
 418 (decode
 419 "Subject: =?ISO-2022-JP?B?GyRCJCIbKEI=?=="
 420 "Subject: =?ISO-2022-JP?B?GyRCJCIbKEI=?==")
 421
 422 (decode
 423 "From: akr@jaist.ac.jp (\\=?ISO-2022-JP?B?GyRCJCIbKEI=?=)"
 424 "From: akr@jaist.ac.jp (\\=?ISO-2022-JP?B?GyRCJCIbKEI=?=)")
 425
 426 ;; Section 3: Decoding melancholy inputs.
 427
 428 (decode
 429 "From:=?ISO-2022-JP?B?GyRCJCIbKEI=?= <akr@jaist.ac.jp>"
 430 "From:=?ISO-2022-JP?B?GyRCJCIbKEI=?= <akr@jaist.ac.jp>")
 431
 432 (decode
 433 "From: akr@jaist.ac.jp
 434  (=?ISO-2022-JP?B?GyRCJCIbKEI=?=\\a=?ISO-2022-JP?B?GyRCJCQbKEI=?=)"
 435 "From: akr@jaist.ac.jp (\e$B$"\e(B\\a\e$B$$\e(B)")
 436
 437 (decode
 438 "From: (a)=?ISO-2022-JP?B?GyRCJCIbKEI=?= <akr@jaist.ac.jp>"
 439 "From: (a)=?ISO-2022-JP?B?GyRCJCIbKEI=?= <akr@jaist.ac.jp>")
 440
 441 (decode
 442 "From: =?ISO-2022-JP?B?GyRCJCIbKEI=?=(b) <akr@jaist.ac.jp>"
 443 "From: =?ISO-2022-JP?B?GyRCJCIbKEI=?=(b) <akr@jaist.ac.jp>")
 444
 445 (decode
 446 "From: (a)=?ISO-2022-JP?B?GyRCJCIbKEI=?=(b) <akr@jaist.ac.jp>"
 447 "From: (a)=?ISO-2022-JP?B?GyRCJCIbKEI=?=(b) <akr@jaist.ac.jp>")
 448
 449 (decode
 450 "From: (a)=?ISO-2022-JP?B?GyRCJCIbKEI=?= <akr@jaist.ac.jp>"
 451 "From: (a)\e$B$"\e(B <akr@jaist.ac.jp>"
 452 'permit-sticked-comment)
 453
 454 (decode
 455 "From: =?ISO-2022-JP?B?GyRCJCIbKEI=?=(b) <akr@jaist.ac.jp>"
 456 "From: \e$B$"\e(B(b) <akr@jaist.ac.jp>"
 457 'permit-sticked-comment)
 458
 459 (decode
 460 "From: (a)=?ISO-2022-JP?B?GyRCJCIbKEI=?=(b) <akr@jaist.ac.jp>"
 461 "From: (a)\e$B$"\e(B(b) <akr@jaist.ac.jp>"
 462 'permit-sticked-comment)
 463
 464 (decode
 465 "From: \"a\"=?ISO-2022-JP?B?GyRCJCIbKEI=?= <akr@jaist.ac.jp>"
 466 "From: \"a\"=?ISO-2022-JP?B?GyRCJCIbKEI=?= <akr@jaist.ac.jp>")
 467
 468 (decode
 469 "From: =?ISO-2022-JP?B?GyRCJCIbKEI=?=\"b\" <akr@jaist.ac.jp>"
 470 "From: =?ISO-2022-JP?B?GyRCJCIbKEI=?=\"b\" <akr@jaist.ac.jp>")
 471
 472 (decode
 473 "From: \"a\"=?ISO-2022-JP?B?GyRCJCIbKEI=?=\"b\" <akr@jaist.ac.jp>"
 474 "From: \"a\"=?ISO-2022-JP?B?GyRCJCIbKEI=?=\"b\" <akr@jaist.ac.jp>")
 475
 476 (decode
 477 "From: =?ISO-2022-JP?B?GyRCJCIbKEI=?=(=?ISO-2022-JP?B?GyRCJCIbKEI=?=)
 478  <akr@jaist.ac.jp>"
 479 "From: \e$B$"\e(B(\e$B$"\e(B) <akr@jaist.ac.jp>"
 480 'permit-sticked-comment)
 481
 482 (decode
 483 "To: =?ISO-2022-JP?B?GyRCJCIbKEI=?=<akr@jaist.ac.jp>"
 484 "To: =?ISO-2022-JP?B?GyRCJCIbKEI=?=<akr@jaist.ac.jp>")
 485
 486 (decode
 487 "To: =?ISO-2022-JP?B?GyRCJCIbKEI=?=<akr@jaist.ac.jp>"
 488 "To: \e$B$"\e(B<akr@jaist.ac.jp>"
 489 'permit-sticked-special)
 490
 491 (decode
 492 "To: <akr@jaist.ac.jp>,=?ISO-2022-JP?B?GyRCJCIbKEI=?=<akr@jaist.ac.jp>"
 493 "To: <akr@jaist.ac.jp>,=?ISO-2022-JP?B?GyRCJCIbKEI=?=<akr@jaist.ac.jp>")
 494
 495 (decode
 496 "To: <akr@jaist.ac.jp>,=?ISO-2022-JP?B?GyRCJCIbKEI=?=<akr@jaist.ac.jp>"
 497 "To: <akr@jaist.ac.jp>,\e$B$"\e(B<akr@jaist.ac.jp>"
 498 'permit-sticked-special)
 499
 500 (decode
 501 "To: akr@jaist.ac.jp,=?ISO-2022-JP?B?GyRCJCIbKEI=?=<akr@jaist.ac.jp>"
 502 "To: akr@jaist.ac.jp,=?ISO-2022-JP?B?GyRCJCIbKEI=?=<akr@jaist.ac.jp>")
 503
 504 (decode
 505 "To: akr@jaist.ac.jp,=?ISO-2022-JP?B?GyRCJCIbKEI=?=<akr@jaist.ac.jp>"
 506 "To: akr@jaist.ac.jp,\e$B$"\e(B<akr@jaist.ac.jp>"
 507 'permit-sticked-special)
 508
 509 (decode
 510 "To: =?ISO-2022-JP?B?GyRCJCIbKEI=?=:akr@jaist.ac.jp;"
 511 "To: =?ISO-2022-JP?B?GyRCJCIbKEI=?=:akr@jaist.ac.jp;")
 512
 513 (decode
 514 "To: =?ISO-2022-JP?B?GyRCJCIbKEI=?=:akr@jaist.ac.jp;"
 515 "To: \e$B$"\e(B:akr@jaist.ac.jp;"
 516 'permit-sticked-special)
 517
 518 (decode
 519 "To: =?ISO-2022-JP?B?GyRCJCIbKEI=?=:=?ISO-2022-JP?B?GyRCJCQbKEI=?=<akr@jaist.ac.jp>;"
 520 "To: =?ISO-2022-JP?B?GyRCJCIbKEI=?=:=?ISO-2022-JP?B?GyRCJCQbKEI=?=<akr@jaist.ac.jp>;")
 521
 522 (decode
 523 "To: =?ISO-2022-JP?B?GyRCJCIbKEI=?=:=?ISO-2022-JP?B?GyRCJCQbKEI=?=<akr@jaist.ac.jp>;"
 524 "To: \e$B$"\e(B:\e$B$$\e(B<akr@jaist.ac.jp>;"
 525 'ignore-76bytes-limit 'permit-sticked-special)
 526
 527 (decode
 528 "To: =?ISO-2022-JP?B?GyRCJCIbKEI=?=:=?ISO-2022-JP?B?GyRCJCQbKEI=?=<foo@bar>,=?ISO-2022-JP?B?GyRCJCYbKEI=?=<foo@bar>;,=?ISO-2022-JP?B?GyRCJCgbKEI=?=<foo@bar>"
 529 "To: =?ISO-2022-JP?B?GyRCJCIbKEI=?=:=?ISO-2022-JP?B?GyRCJCQbKEI=?=<foo@bar>,=?ISO-2022-JP?B?GyRCJCYbKEI=?=<foo@bar>;,=?ISO-2022-JP?B?GyRCJCgbKEI=?=<foo@bar>")
 530
 531 (decode
 532 "To: =?ISO-2022-JP?B?GyRCJCIbKEI=?=:=?ISO-2022-JP?B?GyRCJCQbKEI=?=<foo@bar>,=?ISO-2022-JP?B?GyRCJCYbKEI=?=<foo@bar>;,=?ISO-2022-JP?B?GyRCJCgbKEI=?=<foo@bar>"
 533 "To: \e$B$"\e(B:\e$B$$\e(B<foo@bar>,\e$B$&\e(B<foo@bar>;,\e$B$(\e(B<foo@bar>"
 534 'ignore-76bytes-limit 'permit-sticked-special)
 535
 536 (decode
 537 "Subject:=?ISO-2022-JP?B?GyRCJCIbKEI=?="
 538 "Subject:=?ISO-2022-JP?B?GyRCJCIbKEI=?=")
 539
 540 (decode
 541 "Subject:=?ISO-2022-JP?B?GyRCJCIbKEI=?="
 542 "Subject:\e$B$"\e(B"
 543 'permit-sticked-special)
 544
 545 ;; Section 4: Decoding invalid inputs.
 546
 547 (decode
 548 "From: =?ISO-2022-JP?B?GyRCJCIbKEI=?==?ISO-2022-JP?B?GyRCJCQbKEI=?=
 549  <akr@jaist.ac.jp>"
 550 "From: =?ISO-2022-JP?B?GyRCJCIbKEI=?==?ISO-2022-JP?B?GyRCJCQbKEI=?= <akr@jaist.ac.jp>")
 551
 552 (decode
 553 "From: akr@jaist.ac.jp
 554  (=?ISO-2022-JP?B?GyRCJCIbKEI=?=a=?ISO-2022-JP?B?GyRCJCQbKEI=?=)"
 555 "From: akr@jaist.ac.jp (=?ISO-2022-JP?B?GyRCJCIbKEI=?=a=?ISO-2022-JP?B?GyRCJCQbKEI=?=)")
 556
 557 (decode
 558 "From: akr@jaist.ac.jp
 559  (=?ISO-2022-JP?B?GyRCJCIbKEI=?=(=?ISO-2022-JP?B?GyRCJCQbKEI=?=)=?ISO-2022-JP?B?GyRCJCYbKEI=?=)"
 560 "From: akr@jaist.ac.jp (=?ISO-2022-JP?B?GyRCJCIbKEI=?=(=?ISO-2022-JP?B?GyRCJCQbKEI=?=)=?ISO-2022-JP?B?GyRCJCYbKEI=?=)")
 561
 562 (decode
 563 "From: akr@jaist.ac.jp
 564  (=?ISO-2022-JP?B?GyRCJCIbKEI=?=(=?ISO-2022-JP?B?GyRCJCQbKEI=?=)=?ISO-2022-JP?B?GyRCJCYbKEI=?=)"
 565 "From: akr@jaist.ac.jp (\e$B$"\e(B(\e$B$$\e(B)\e$B$&\e(B)"
 566 'ignore-76bytes-limit)
 567
 568 (decode
 569 "Subject: =?=?ISO-2022-JP?B?GyRCJCIbKEI=?="
 570 "Subject: =?=?ISO-2022-JP?B?GyRCJCIbKEI=?=")
 571
 572 (decode
 573 "Subject: =?ISO-2022-JP=?ISO-2022-JP?B?GyRCJCIbKEI=?="
 574 "Subject: =?ISO-2022-JP=?ISO-2022-JP?B?GyRCJCIbKEI=?=")
 575
 576 (decode
 577 "Subject: =?ISO-2022-JP?=?ISO-2022-JP?B?GyRCJCIbKEI=?="
 578 "Subject: =?ISO-2022-JP?=?ISO-2022-JP?B?GyRCJCIbKEI=?=")
 579
 580 (decode
 581 "Subject: =?ISO-2022-JP?B=?ISO-2022-JP?B?GyRCJCIbKEI=?="
 582 "Subject: =?ISO-2022-JP?B=?ISO-2022-JP?B?GyRCJCIbKEI=?=")
 583
 584 (decode
 585 "Subject: =?ISO-2022-JP?B?=?ISO-2022-JP?B?GyRCJCIbKEI=?="
 586 "Subject: =?ISO-2022-JP?B?=?ISO-2022-JP?B?GyRCJCIbKEI=?=")
 587
 588 (decode
 589 "Subject: =?ISO-2022-JP?B?GyRCJCIbKEI=?ISO-2022-JP?B?GyRCJCIbKEI=?="
 590 "Subject: =?ISO-2022-JP?B?GyRCJCIbKEI=?ISO-2022-JP?B?GyRCJCIbKEI=?=")
 591
 592 (decode
 593 "Subject: =?ISO-2022-JP?B?GyRCJCIbKEI==?ISO-2022-JP?B?GyRCJCIbKEI=?="
 594 "Subject: =?ISO-2022-JP?B?GyRCJCIbKEI==?ISO-2022-JP?B?GyRCJCIbKEI=?=")
 595
 596 (decode
 597 "Subject: =?ISO-2022-JP?B?GyRCJCIbKEI=?=?ISO-2022-JP?B?GyRCJCIbKEI=?="
 598 "Subject: =?ISO-2022-JP?B?GyRCJCIbKEI=?=?ISO-2022-JP?B?GyRCJCIbKEI=?=")
 599
 600 (decode
 601 "Subject: =?ISO-2022-JP?B?GyRCJCIbKEI=?==?ISO-2022-JP?B?GyRCJCIbKEI=?="
 602 "Subject: =?ISO-2022-JP?B?GyRCJCIbKEI=?==?ISO-2022-JP?B?GyRCJCIbKEI=?=")
 603
 604 (decode
 605 "Subject: =?ISO-2022-JP?B?GyRCJCIbKEI?="
 606 "Subject: =?ISO-2022-JP?B?GyRCJCIbKEI?=")
 607
 608 (decode
 609 "Subject: =?ISO-2022-JP?B?GyRCNFg-dBsoQg==?="
 610 "Subject: =?ISO-2022-JP?B?GyRCNFg-dBsoQg==?=")
 611
 612 ;; Section 5: Encoding trivial inputs.
 613
 614 (encode
 615 "From: \e$B$"\e(B <akr@jaist.ac.jp>"
 616 "From: =?ISO-2022-JP?B?GyRCJCIbKEI=?= <akr@jaist.ac.jp>")
 617
 618 (encode
 619 "From: \"\e$B$"\e(B(\e$B$"\e(B)\" <akr@jaist.ac.jp>"
 620 "From: =?ISO-2022-JP?B?GyRCJCIbKEIoGyRCJCIbKEIp?= <akr@jaist.ac.jp>")
 621
 622 (encode
 623 "From: \"a\\\"b\e$B$"\e(Bc\\\\\" <akr@jaist.ac.jp>"
 624 "From: =?ISO-2022-JP?B?YSJiGyRCJCIbKEJjXA==?= <akr@jaist.ac.jp>")
 625
 626 (encode
 627 "Subject: \e$B0$\e(B                                                                                                                          \e$BR_\e(B"
 628 "Subject: =?ISO-2022-JP?B?GyRCMCQbKEIgICAgICAgICAgICAgICAgICAgICAgICAgICAg?=
 629  =?US-ASCII?Q?____________________________________________________________?=
 630  =?ISO-2022-JP?B?ICAgICAgICAgICAgICAgICAgICAgICAgICAgICAgICAgIBskQlJfGyhC?=")
 631
 632 (encode
 633 "Subject: \e$B0$\e(B                                                                                                                          \e$BR_\e(B"
 634 "Subject: =?ISO-2022-JP?B?GyQpQrCkICAgICAgICAgICAgICAgICAgICAgICAgICAgICAgICAgICAgICAgICAgICAgICAgICAgICAgICAgICAgICAgICAgICAgICAgICAgICAgICAgICAgICAgICAgICAgICAgICAgICAgICAgICAgICAgICAgICAgICAgICDS3w=="
 635 'ignore-76bytes-limit 'ignore-75bytes-limit)
 636
 637 (encode
 638 "From: \e.A\eN! <akr@jaist.ac.jp>"\e*B
 639 "From: =?ISO-8859-1?Q?=A1?= <akr@jaist.ac.jp>")
 640
 641 (encode
 642 "From: \"abcdefghijklmnopqrst\e.A\eN!()\\\"\\\\\" <akr@jaist.ac.jp>"\e*B
 643 "From: =?ISO-8859-1?Q?abcdefghijklmnopqrst=A1=28=29=22=5C?= <akr@jaist.ac.jp>")
 644
 645 (encode
 646 "From: akr@jaist.ac.jp (abcdefghijklmnopqrst\e.A\eN!\\(\\)\"\\\\)"\e*B
 647 "From: akr@jaist.ac.jp (=?ISO-8859-1?Q?abcdefghijklmnopqrst=A1=28=29\"=5C?=)")
 648
 649 (encode
 650 "Subject: \e$B$"\e(B a \e.H\eN`"\e*B
 651 "Subject: =?ISO-2022-JP?B?GyRCJCIbKEI=?= a =?ISO-8859-8?Q?=E0?=")
 652
 653 (encode
 654 "Subject: \e.H\eN`\e$BNm\e(B"\e*B
 655 "Subject: =?ISO-8859-8?Q?=E0?= =?ISO-2022-JP?B?GyRCTm0bKEI=?=")
 656
 657 (encode
 658 "Subject: \e.H\eN` \e$BNm\e(B"\e*B
 659 '("Subject: =?ISO-8859-8?Q?=E0_?= =?ISO-2022-JP?B?GyRCTm0bKEI=?="
 660   "Subject: =?ISO-8859-8?Q?=E0?= =?ISO-2022-JP?B?IBskQk5tGyhC?="))
 661
 662 (encode
 663 "Subject: \e.F\eNC\e$B4X?t\e(B"\e*B
 664 '("Subject: =?ISO-8859-7?Q?=C3?= =?ISO-2022-JP?B?GyRCNFg/dBsoQg==?="
 665   "Subject: =?ISO-2022-JP-2?B?Gy5GG05DGyRCNFg/dBsoQg==?="))
 666
 667 ;; Section 6: Encoding melancholy inputs.
 668
 669 (encode
 670 "From: akr@jaist.ac.jp (\e$B$"\e(B(\e$B$$\e(B)\e$B$&\e(B)"
 671 "From: akr@jaist.ac.jp
 672  (=?ISO-2022-JP?B?GyRCJCIbKEI=?=(=?ISO-2022-JP?B?GyRCJCQbKEI=?=)=?ISO-2022-JP?B?GyRCJCYbKEI=?=)"
 673 'ignore-76bytes-limit)
 674
 675 (encode
 676 "From: akr@jaist.ac.jp (\e$B$"\e(B(\e$B$$\e(B)\e$B$&\e(B)"
 677 "From: akr@jaist.ac.jp (=?ISO-2022-JP?B?GyRCJCIbKEI=?=
 678  =?ISO-2022-JP?B?GyhC?=(=?ISO-2022-JP?B?GyRCJCQbKEI=?=
 679  =?ISO-2022-JP?B?GyhC?=)=?ISO-2022-JP?B?GyRCJCYbKEI=?=)"
 680 'zero-characters-encoded-word-hack)
 681
 682 (encode
 683 "From: \e$B$"\e(B(\e$B$"\e(B) <akr@jaist.ac.jp>"
 684 "From: =?ISO-2022-JP?B?GyRCJCIbKEIoGyRCJCIbKEIp?= <akr@jaist.ac.jp>"
 685 'encode-sticked-comment-as-atom)
 686
 687 (encode
 688 "From: \e$B$"\e(B(\e$B$"\e(B) <akr@jaist.ac.jp>"
 689 "From: =?ISO-2022-JP?B?GyRCJCIbKEI=?=(=?ISO-2022-JP?B?GyRCJCIbKEI=?=)
 690  <akr@jaist.ac.jp>"
 691 'permit-sticked-comment)
 692
 693 (encode
 694 "From: \e$B$"\e(B(\e$B$"\e(B) <akr@jaist.ac.jp>"
 695 "From: =?ISO-2022-JP?B?GyRCJCIbKEI=?= (=?ISO-2022-JP?B?GyRCJCIbKEI=?=)
 696  <akr@jaist.ac.jp>"
 697 'separate-sticked-comment)
 698
 699 (encode
 700 "To: \e$B$"\e(B<akr@jaist.ac.jp>"
 701 "To: =?ISO-2022-JP?B?GyRCJCIbKEI=?=<akr@jaist.ac.jp>"
 702 'permit-sticked-special)
 703
 704 (encode
 705 "To: \e$B$"\e(B<akr@jaist.ac.jp>"
 706 "To: =?ISO-2022-JP?B?GyRCJCIbKEI=?= <akr@jaist.ac.jp>"
 707 'separate-sticked-special)
 708
 709 (encode
 710 "To: <akr@jaist.ac.jp>,\e$B$"\e(B<akr@jaist.ac.jp>"
 711 "To: <akr@jaist.ac.jp>,=?ISO-2022-JP?B?GyRCJCIbKEI=?=<akr@jaist.ac.jp>"
 712 'permit-sticked-special)
 713
 714 (encode
 715 "To: <akr@jaist.ac.jp>,\e$B$"\e(B<akr@jaist.ac.jp>"
 716 "To: <akr@jaist.ac.jp>, =?ISO-2022-JP?B?GyRCJCIbKEI=?= <akr@jaist.ac.jp>"
 717 'separate-sticked-special)
 718
 719 (encode
 720 "To: akr@jaist.ac.jp,\e$B$"\e(B<akr@jaist.ac.jp>"
 721 "To: akr@jaist.ac.jp,=?ISO-2022-JP?B?GyRCJCIbKEI=?=<akr@jaist.ac.jp>"
 722 'permit-sticked-special)
 723
 724 (encode
 725 "To: akr@jaist.ac.jp,\e$B$"\e(B<akr@jaist.ac.jp>"
 726 "To: akr@jaist.ac.jp, =?ISO-2022-JP?B?GyRCJCIbKEI=?= <akr@jaist.ac.jp>"
 727 'separate-sticked-special)
 728
 729 (encode
 730 "To: \e$B$"\e(B:akr@jaist.ac.jp;"
 731 "To: =?ISO-2022-JP?B?GyRCJCIbKEI=?=:akr@jaist.ac.jp;"
 732 'permit-sticked-special)
 733
 734 (encode
 735 "To: \e$B$"\e(B:akr@jaist.ac.jp;"
 736 "To: =?ISO-2022-JP?B?GyRCJCIbKEI=?= :akr@jaist.ac.jp;"
 737 'separate-sticked-special)
 738
 739 (encode
 740 "To: \e$B$"\e(B:\e$B$$\e(B<akr@jaist.ac.jp>;"
 741 "To: =?ISO-2022-JP?B?GyRCJCIbKEI=?=:=?ISO-2022-JP?B?GyRCJCQbKEI=?=<akr@jaist.ac.jp>;"
 742 'ignore-76bytes-limit 'permit-sticked-special)
 743
 744 (encode
 745 "To: \e$B$"\e(B:\e$B$$\e(B<akr@jaist.ac.jp>;"
 746 "To: =?ISO-2022-JP?B?GyRCJCIbKEI=?=:=?ISO-2022-JP?B?GyRCJCQbKEI=?=
 747  =?ISO-2022-JP?B?GyhC?=<akr@jaist.ac.jp>;"
 748 'zero-characters-encoded-word-hack 'permit-sticked-special)
 749
 750 (encode
 751 "To: \e$B$"\e(B:\e$B$$\e(B<akr@jaist.ac.jp>;"
 752 "To: =?ISO-2022-JP?B?GyRCJCIbKEI=?= : =?ISO-2022-JP?B?GyRCJCQbKEI=?=
 753  <akr@jaist.ac.jp>;"
 754 'separate-sticked-special)
 755
 756 (encode
 757 "To: \e$B$"\e(B:\e$B$$\e(B<foo@bar>,\e$B$&\e(B<foo@bar>;,\e$B$(\e(B<foo@bar>"
 758 "To: =?ISO-2022-JP?B?GyRCJCIbKEI=?=:=?ISO-2022-JP?B?GyRCJCQbKEI=?=<foo@bar>,=?ISO-2022-JP?B?GyRCJCYbKEI=?=<foo@bar>;,=?ISO-2022-JP?B?GyRCJCgbKEI=?=<foo@bar>"
 759 'ignore-76bytes-limit 'permit-sticked-special)
 760
 761 (encode
 762 "To: \e$B$"\e(B:\e$B$$\e(B<foo@bar>,\e$B$&\e(B<foo@bar>;,\e$B$(\e(B<foo@bar>"
 763 "To: =?ISO-2022-JP?B?GyRCJCIbKEI=?=:=?ISO-2022-JP?B?GyRCJCQbKEI=?=
 764  =?ISO-2022-JP?B?GyhC?=<foo@bar>,=?ISO-2022-JP?B?GyRCJCYbKEI=?=
 765  =?ISO-2022-JP?B?GyhC?=<foo@bar>;,=?ISO-2022-JP?B?GyRCJCgbKEI=?=<foo@bar>"
 766 'zero-characters-encoded-word-hack 'permit-sticked-special)
 767
 768 (encode
 769 "To: \e$B$"\e(B:\e$B$$\e(B<foo@bar>,\e$B$&\e(B<foo@bar>;,\e$B$(\e(B<foo@bar>"
 770 "To: =?ISO-2022-JP?B?GyRCJCIbKEI=?= : =?ISO-2022-JP?B?GyRCJCQbKEI=?=
 771  <foo@bar>, =?ISO-2022-JP?B?GyRCJCYbKEI=?= <foo@bar>;,
 772  =?ISO-2022-JP?B?GyRCJCgbKEI=?= <foo@bar>"
 773 'separate-sticked-special)
 774
 775 ;; Section 7: Using quoted-encoded-words.
 776 ;
 777 ;; quoted-encoded-word \e$BI=8=\e(B
 778 ;
 779 ; RFC2047 \e$B$N%G%3!<%@$O@x:_E*$K\e(B(\e$B%G%3!<%I7k2L$G$J$/\e(B) encoded-word \e$B$=$N$b$N$r\e(B
 780 ; \e$B=PNO$7$J$1$l$P$J$i$J$$$3$H$,$"$k!#\e(B
 781 ;
 782 ; 1. \e$BCN$i$J$$\e(B charset \e$B$b$7$/$O\e(B encoding \e$B$,;XDj$5$l$F$$$?$H$-!#\e(B
 783 ;  =?unknown-charset?known-encoding?some-encoded-text?=
 784 ;  =?known-charset?unknown-encoding?some-encoded-text?=
 785 ;  =?unknown-charset?unknown-encoding?some-encoded-text?=
 786 ;
 787 ; 2. \e$B%G%3!<%I$G$-$F$bFbMF$,7uF]$9$.$k$H$-!#\e(B
 788 ;  Non ASCII \e$B3HD%\e(B RFC822 \e$B$NCf$K\e(B =?US-ASCII?Q?=0D=0A=0D=0A?= \e$B$N%G%3!<%I\e(B
 789 ; \e$B7k2L$rKd$a9~$`$N$O4m81$9$.$k!#\e(B
 790 ;
 791 ; \e$B$^$?!"%G%3!<%@$O\e(B encoded-word \e$B$N$h$&$K$_$($k%G%3!<%I7k2L$r=PNO$7$J$1\e(B
 792 ; \e$B$l$P$J$i$J$$$3$H$b$"$k!#\e(B
 793 ;
 794 ;  =?US-ASCII?Q?=3D=3FUS-ASCII=3FQ=3Ftext=3F=3D?=
 795 ;
 796 ; \e$B%G%3!<%@$,C1$J$kJ8;zNs$r=PNO$9$k>l9g!"C1=c$K$d$k$H\e(B encoded-word \e$B$=$N$b$N$H\e(B
 797 ; encoded-word \e$B$N$h$&$K$_$($kJ8;zNs$r6hJL$G$-$J$$!#\e(B
 798 ; \e$B$3$3$G$OJ8;zNsCf$G$=$l$i$r3N<B$K6hJL$7$FI=8=$9$kJ}K!$r<($9!#\e(B
 799 ;
 800 ; rule 1: \e$BJ8;zNsCf$G\e(B =?charset?encoding?text?= \e$B$H$$$&%Q%?!<%s$K\e(B
 801 ;  \e$B%^%C%A$7$J$$ItJ,$O$=$NItJ,$N$^$^$NFbMF$rI=$9!#\e(B
 802 ;
 803 ; rule 2: \e$BJ8;zNsCf$G\e(B =?charset?encoding?text?= \e$B$H$$$&%Q%?!<%s$K\e(B
 804 ;  \e$B%^%C%A$9$kItJ,$O\e(B charset \e$B$N@hF,$K\e(B * \e$B$,$$$/$DIU$$$F$$$k$+$GFbMF$N\e(B
 805 ;  \e$B2r<a$rJQ$($k!#\e(B
 806 ;
 807 ;  \e$B6v?t$N>l9g\e(B(0, 2, 4, ...): charset \e$B$N@hF,$N\e(B * \e$B$N?t$rH>J,$K$7$?J8;zNs\e(B
 808 ;  \e$B4q?t$N>l9g\e(B(1, 3, 5, ...): charset \e$B$N@hF,$N\e(B * \e$B$N?t$rH>J,\e(B(\e$B>.?tE@0J2<\e(B
 809 ;   \e$B@Z<N$F\e(B)\e$B$K$7$F!"$=$l$r\e(B encoded-word \e$B$H;W$C$F%G%3!<%I$7$?J8;zNs!#\e(B
 810 ;
 811 ; NOTE: * \e$B$r\e(B quoted-encoded-word \e$BI=8=$N\e(B quote \e$BJ8;z$H8F$V!#\e(B
 812 ;
 813 ; NOTE: \e$B8=;~E@\e(B(1998/07/19)\e$B$G\e(B IANA \e$B$K$O\e(B * \e$B$r4^$`\e(B charset \e$B$O\e(B
 814 ;  \e$BEPO?$5$l$F$$$J$$$N$G!"$=$l$i$N\e(B charset \e$B$r;H$C$?\e(B
 815 ;  encoded-word \e$B$rI=8=$9$k$K$O\e(B * \e$B$r\e(B 1\e$B$D$D$1$k$3$H$K$J$k!#\e(B
 816 ;
 817 ;  =?US-ASCII?Q?abcdef?= \e$B$H$$$&\e(Bencoded-word : =?*US-ASCII?Q?abcdef?=
 818 ;
 819 ;  =?US-ASCII?Q?abcdef?= \e$B$H$$$&J8;zNs\e(B         : =?US-ASCII?Q?abcdef?=
 820 ;  =?*US-ASCII?Q?abcdef?= \e$B$H$$$&J8;zNs\e(B        : =?**US-ASCII?Q?abcdef?=
 821 ;  =?**US-ASCII?Q?abcdef?= \e$B$H$$$&J8;zNs\e(B     : =?****US-ASCII?Q?abcdef?=
 822 ;  =?***US-ASCII?Q?abcdef?= \e$B$H$$$&J8;zNs\e(B    : =?******US-ASCII?Q?abcdef?=
 823 ;  =?US-ASCII*?Q?abcdef?= \e$B$H$$$&J8;zNs\e(B      : =?US-ASCII*?Q?abcdef?=
 824 ;  =?U*S-ASCII?Q?abcdef?= \e$B$H$$$&J8;zNs\e(B      : =?U*S-ASCII?Q?abcdef?=
 825 ;
 826 ; NOTE: encoded-word \e$B$K8+$($kJ8;zNs$G\e(B * \e$B$,G\A}$5$l$k$N$O\e(B charset \e$B$N\e(B
 827 ;  \e$B@hF,$@$1$G$"$j!"\e(Bencoding \e$B$d\e(B encoded-text \e$B$O$?$H$(\e(B * \e$B$,F~$C$F$$$F$b\e(B
 828 ;  \e$BJQ2=$7$J$$!#$^$?!"\e(Bcharset \e$BCf$G$b\e(B \e$B@hF,0J30$N\e(B * \e$B$OJQ2=$7$J$$!#\e(B
 829 ;
 830 ; rule 3: \e$BJ8;zNsA4BN$NFbMF$O!"\e(Brule 1 \e$B$H\e(B rule 2 \e$B$G2r<a$7$?3FItJ,$N\e(B
 831 ;   \e$BJ8;zNs$rC1=c$KO"7k$7$?J8;zNs$H$9$k!#\e(B
 832 ;
 833 ; NOTE: RFC2047 \e$B$G$O\e(B encoded-word \e$B$,6uGr$G6h@Z$i$l$J$1$l$P$J$i$J$$$H$+!"\e(B
 834 ;  encoded-word \e$B$O\e(B 75bytes \e$B0J2<$G$J$1$l$P$J$i$J$$$H$+!"\e(B
 835 ;  encoded-word \e$B$,4^$^$l$k9T$O\e(B 76bytes \e$B0J2<$G$J$1$l$P$J$i$J$$$J$I$H$$$&\e(B
 836 ;  \e$B5,Ls$,$"$k$,!"\e(Bquoted-encoded-word \e$BI=8=$G$O$=$l$i$O:NMQ$7$J$$!#\e(B
 837 ;  \e$BC1=c$K\e(B encoded-word \e$BFbIt$NJ8K!$@$1$rMxMQ$9$k!#\e(B
 838 ;  (\e$BK\<AE*$K$O0[$J$kJ8K!$r:NMQ$9$k$3$H$b2DG=$G$"$k$,!"\e(BRFC2047 \e$B$K7I0U$r\e(B
 839 ;  \e$BI=$7$F\e(B encoded-word \e$B$NJ8K!$r:NMQ$9$k!#\e(B)
 840 ;
 841 ; NOTE: quoted-encoded-word \e$BI=8=$7$?J8;zNs$NO"7k$O0BA4$G$O$J$$!#\e(B
 842 ;  =?*US-ASCII?Q?ab \e$B$H\e(B cd?= \e$B$H$$$&\e(B quoted-encoded-word \e$BI=8=$7$?J8;zNs$O\e(B
 843 ;  \e$B$=$l$>$l$=$NJ8;zNs$=$N$b$N$rI=8=$9$k$,!"$=$l$i$rO"7k$7$?J8;zNs\e(B
 844 ;  =?*US-ASCII?Q?abcd?= \e$B$O\e(B abcd \e$B$H$$$&J8;zNs$rI=8=$9$k$3$H$K$J$j!"\e(B
 845 ;  \e$B$=$l$>$l$NFbMF$NO"7k$H$O$J$i$J$$!#\e(B
 846 ;
 847 ;  \e$B$3$l$O$H$/$K\e(B Non ASCII \e$B3HD%\e(B RFC822 \e$B$NCf$K\e(B quoted-encoded-word \e$BI=8=$r\e(B
 848 ;  \e$BKd$a9~$`$H$-$K5$$rIU$1$J$1$l$P$J$i$J$$!#\e(B(\e$BKd$a9~$s$@7k2L$O@5$7$$\e(B
 849 ;  quoted-encoded-word \e$BI=8=$H$O$J$i$J$$$+$bCN$l$J$$!#\e(B)
 850
 851 (decode
 852 "Subject: =?Unknown-Charset?B?gqA=?="
 853 "Subject: =?*Unknown-Charset?B?gqA=?="
 854 'quoted-encoded-word)
 855
 856 (decode
 857 "Subject: =?US-ASCII?G?H4sIAMsIsjUCA0tMSk5JTQMA7zmOSwYAAAA?="
 858 "Subject: =?*US-ASCII?G?H4sIAMsIsjUCA0tMSk5JTQMA7zmOSwYAAAA?="
 859 'quoted-encoded-word)
 860
 861 (decode
 862 "Subject: =?US-ASCII?Unknown-Encoding?H4sIAMsIsjUCA0tMSk5JTQMA7zmOSwYAAAA?="
 863 "Subject: =?*US-ASCII?Unknown-Encoding?H4sIAMsIsjUCA0tMSk5JTQMA7zmOSwYAAAA?="
 864 'quoted-encoded-word)
 865
 866 (decode
 867 "Subject: =?Unknown-Charset?B?gqA=?= =?Unknown-Charset?B?gqA=?="
 868 "Subject: =?*Unknown-Charset?B?gqA=?==?*Unknown-Charset?B?gqA=?="
 869 'quoted-encoded-word)
 870
 871 (decode
 872 "Subject: =?Unknown-Charset?B?gqA=?=  =?Unknown-Charset?B?gqA=?="
 873 "Subject: =?*Unknown-Charset?B?gqA=?==?*Unknown-Charset?B?gqA=?="
 874 'quoted-encoded-word)
 875
 876 (decode
 877 "Subject: =?Unknown-Charset?B?gqA=?=
 878  =?Unknown-Charset?B?gqA=?="
 879 "Subject: =?*Unknown-Charset?B?gqA=?==?*Unknown-Charset?B?gqA=?="
 880 'quoted-encoded-word)
 881
 882 (decode
 883 "Subject: =?Unknown-Charset?B?gqA=?=
 884         =?Unknown-Charset?B?gqA=?="
 885 "Subject: =?*Unknown-Charset?B?gqA=?==?*Unknown-Charset?B?gqA=?="
 886 'quoted-encoded-word)
 887
 888 (decode
 889 "Subject: a=?Unknown-Charset?B?gqA=?="
 890 "Subject: a=?Unknown-Charset?B?gqA=?="
 891 'quoted-encoded-word)
 892
 893 (decode
 894 "Subject: =?Unknown-Charset?B?gqA=?=b"
 895 "Subject: =?Unknown-Charset?B?gqA=?=b"
 896 'quoted-encoded-word)
 897
 898 (decode
 899 "Subject: a=?Unknown-Charset?B?gqA=?=b"
 900 "Subject: a=?Unknown-Charset?B?gqA=?=b"
 901 'quoted-encoded-word)
 902
 903 (decode
 904 "Subject: a =?Unknown-Charset?B?gqA=?= b"
 905 "Subject: a =?*Unknown-Charset?B?gqA=?= b"
 906 'quoted-encoded-word)
 907
 908 (decode
 909 "Subject: =?ISO-2022-JP?B?DQoNCg==?="
 910 "Subject: =?*US-ASCII?Q?=0D=0A=0D=0A?="
 911 'quoted-encoded-word)
 912
 913 (decode
 914 "Subject: =?US-ASCII?Q?a=0D=0A_b?="
 915 "Subject: a=?*US-ASCII?Q?=0D=0A?= b"
 916 'quoted-encoded-word)
 917
 918 (decode
 919 "Subject: =?US-ASCII?Q?a=0D=0Ab?="
 920 "Subject: a=?*US-ASCII?Q?=0D=0A?=b"
 921 'quoted-encoded-word)
 922
 923 ;;;end-test;;;
 924
 925 (report)
 926
 927 ;----------------------------------------------------------------------------