X-Git-Url: http://git.chise.org/gitweb/?a=blobdiff_plain;f=TESTPAT;h=09b57fc4e3b4aa05aed4ee8291cb07cc4c9e5a47;hb=955b92b07f71c449e9ff8f2b49b7e12408527cec;hp=82f06054ead56656d8d1adfec43952dcedb8d628;hpb=01f40c819eae909ffc579cfdbfe7f2b3bda10acc;p=elisp%2Fflim.git

diff --git a/TESTPAT b/TESTPAT
index 82f0605..09b57fc 100644
--- a/TESTPAT
+++ b/TESTPAT
@@ -2,39 +2,51 @@
 ;-------- This sequece of HYPHEN-MINUS is 76 bytes long. --------------------
 ;----------------------------------------------------------------------------
 
-; options:
-;encode-sticked-comment-as-atom         ; violate policy preventing structure
-;ignore-75bytes-limit                   ; violate RFC2047
-;ignore-76bytes-limit                   ; violate RFC2047
-;permit-sticked-comment                 ; violate RFC2047
-;permit-sticked-special                 ; violate RFC2047
-;separate-sticked-comment               ; violate policy preserving absence of space
-;separate-sticked-special               ; violate policy preserving absence of space
-;zero-characters-encoded-word-hack      ; violate common sense (very tricky)
-
-;;; test driver for FLIM-FLAM (and FLIM)
-
-(defun decode (src dsts &rest opts)
+;;; options:
+;;encode-sticked-comment-as-atom    ; violate the policy preserving structures
+;;ignore-75bytes-limit              ; violate RFC2047
+;;ignore-76bytes-limit              ; violate RFC2047
+;;permit-sticked-comment            ; violate RFC2047
+;;permit-sticked-special            ; violate RFC2047
+;;separate-sticked-comment          ; violate the policy preserving absence of space
+;;separate-sticked-special          ; violate the policy preserving absence of space
+;;zero-characters-encoded-word-hack ; violate common sense (very tricky)
+;;quoted-encoded-word		   ; violate character sequence semantics
+;;separate-sticked-tokens-for-fold  ; violate the policy preserving absence of space
+;;encode-long-ascii-string-for-fold ; violate the policy preserving US-ASCII string
+;;divide-atom-for-fold		   ; violate tne policy preserving absence of space
+
+;;; test driver
+
+;;; FLIM or FLAM
+'(progn
+(require 'mime)
+(require 'ew-line)
+
+(if (< max-specpdl-size 1000)
+  (setq max-specpdl-size 1000))
+
+(defun decode-test (src dsts &rest opts)
+  (setq src (ew-crlf-to-lf src))
   (setq eword-lexical-analyze-cache nil)
   (setq eword-decode-sticked-encoded-word
     (or (memq 'permit-sticked-comment opts)
   	(memq 'permit-sticked-special opts)))
   (setq eword-decode-quoted-encoded-word nil)
-  (if (stringp dsts) (setq dsts (list dsts)))
   (with-temp-buffer
     (insert src "\n" mail-header-separator)
     (eword-decode-header 'us-ascii mail-header-separator)
     (goto-char (point-min))
     (std11-narrow-to-header mail-header-separator)
     (std11-field-end)
-    (let ((result (buffer-substring (point-min) (point))))
+    (let ((result (std11-unfold-string
+		   (buffer-substring (point-min) (point)))))
       (if (member result dsts) t result))))
 
-(defun encode (src dsts &rest opts)
+(defun encode-test (src dsts &rest opts)
   (setq eword-lexical-analyze-cache nil)
   (setq eword-decode-sticked-encoded-word nil)
   (setq eword-decode-quoted-encoded-word nil)
-  (if (stringp dsts) (setq dsts (list dsts)))
   (with-temp-buffer
     (insert src "\n" mail-header-separator)
     (goto-char (point-min))
@@ -44,8 +56,76 @@
     (std11-field-end)
     (let ((result (buffer-substring (point-min) (point))))
       (if (member result dsts) t result))))
+)
+
+;;; EW
+(progn
+(require 'ew-dec)
+(require 'ew-line)
+
+(defun decode-test (src dsts &rest opts)
+  (let ((ew-decode-quoted-encoded-word nil)
+	(ew-ignore-75bytes-limit (memq 'ignore-75bytes-limit opts))
+	(ew-ignore-76bytes-limit (memq 'ignore-76bytes-limit opts))
+	(ew-permit-sticked-comment (memq 'permit-sticked-comment opts))
+	(ew-permit-sticked-special (memq 'permit-sticked-special opts)))
+    (string-match "\\`[^:]*:" src)
+    (let* ((field-name (substring src
+				  (match-beginning 0)
+				  (1- (match-end 0))))
+	   (field-body (substring src (match-end 0)))
+	   (result (ew-crlf-unfold
+		    (concat field-name ":"
+			    (ew-decode-field field-name field-body)))))
+      (if (member result dsts) t result))))
+
+(defun encode-test (src dsts &rest opts)
+  nil)
+)
 
-;;; from RFC2047
+;;;
+
+(setq decode-succ-count 0)
+(setq decode-all-count 0)
+(defun decode (src dsts &rest opts)
+  (if (stringp dsts) (setq dsts (list dsts)))
+  (setq decode-all-count (1+ decode-all-count))
+  (let ((res (condition-case nil
+	       (apply 'decode-test src dsts opts)
+	       (error nil))))
+    (if (eq res t)
+      (progn
+	(setq decode-succ-count (1+ decode-succ-count))
+	(insert "\n'dsucc"))
+      (insert (format "\n%S\n'dfail" res)))
+    res))
+
+(setq encode-succ-count 0)
+(setq encode-all-count 0)
+(defun encode (src dsts &rest opts)
+  (if (stringp dsts) (setq dsts (list dsts)))
+  (setq encode-all-count (1+ encode-all-count))
+  (let ((res (condition-case nil
+	       (apply 'encode-test src dsts opts)
+	       (error nil))))
+    (if (eq res t)
+      (progn
+	(setq encode-succ-count (1+ encode-succ-count))
+	(insert "\n'esucc"))
+      (insert (format "\n%S\n'efail" res)))
+    res))
+
+(defun report ()
+  (insert
+    (format "\n\"Decode: %d/%d  Encode: %d/%d  Total: %d/%d\""
+      decode-succ-count decode-all-count
+      encode-succ-count encode-all-count
+      (+ decode-succ-count encode-succ-count)
+      (+ decode-all-count encode-all-count))))
+
+;;;start-test
+
+;;; Section 1: Decoding examples from RFC2047
 
 (decode
 "From: =?US-ASCII?Q?Keith_Moore?= <moore@cs.utk.edu>"
@@ -60,7 +140,7 @@
 "CC: Andr.ANi Pirard <PIRARD@vm1.ulg.ac.be>")*B
 
 (decode
-"Subject: =?ISO-8859-1?B?SWYgeW91IGNhbiByZWFkIHRoaXMgeW8=?=
+"Subject: =?ISO-8859-1?B?SWYgeW91IGNhbiByZWFkIHRoaXMgeW8=?=\r
  =?ISO-8859-2?B?dSB1bmRlcnN0YW5kIHRoZSBleGFtcGxlLg==?="
 "Subject: If you can read this you understand the example.")
 
@@ -73,7 +153,7 @@
 "From: Patrik F.ANdltstrNvm <paf@nada.kth.se>")*B
 
 (decode
-"From: Nathaniel Borenstein <nsb@thumper.bellcore.com>
+"From: Nathaniel Borenstein <nsb@thumper.bellcore.com>\r
 	(=?iso-8859-8?b?7eXs+SDv4SDp7Oj08A==?=)"
 "From: Nathaniel Borenstein <nsb@thumper.bellcore.com>	(.HNmNeNlNy NoNa NiNlNhNtNp)")*B
 
@@ -94,7 +174,7 @@
 "From: foo@bar.baz (ab)")
 
 (decode
-"From: foo@bar.baz (=?ISO-8859-1?Q?a?=
+"From: foo@bar.baz (=?ISO-8859-1?Q?a?=\r
 	=?ISO-8859-1?Q?b?=)"
 "From: foo@bar.baz (ab)")
 
@@ -123,7 +203,7 @@
 "Subject: (=?ISO-8859-1?Q?a?=  =?ISO-8859-1?Q?b?=)")
 
 (decode
-"Subject: (=?ISO-8859-1?Q?a?=
+"Subject: (=?ISO-8859-1?Q?a?=\r
 	=?ISO-8859-1?Q?b?=)"
 "Subject: (=?ISO-8859-1?Q?a?=	=?ISO-8859-1?Q?b?=)")
 
@@ -135,78 +215,39 @@
 "Subject: (=?ISO-8859-1?Q?a?= =?ISO-8859-2?Q?_b?=)"
 "Subject: (=?ISO-8859-1?Q?a?= =?ISO-8859-2?Q?_b?=)")
 
-;;; by akr@jaist.ac.jp
+;;; Section 2: Decoding proper inputs.
 
 (decode
 "From: =?ISO-2022-JP?B?GyRCJCIbKEI=?= <akr@jaist.ac.jp>"
 "From: $B$"(B <akr@jaist.ac.jp>")
 
-(encode
-"From: $B$"(B <akr@jaist.ac.jp>"
-"From: =?ISO-2022-JP?B?GyRCJCIbKEI=?= <akr@jaist.ac.jp>")
-
 (decode
-"From: =?ISO-2022-JP?B?GyRCJCIbKEI=?= =?ISO-2022-JP?B?GyRCJCQbKEI=?=
+"From: =?ISO-2022-JP?B?GyRCJCIbKEI=?= =?ISO-2022-JP?B?GyRCJCQbKEI=?=\r
  <akr@jaist.ac.jp>"
 "From: $B$"$$(B <akr@jaist.ac.jp>")
 
 (decode
-"From: =?ISO-2022-JP?B?GyRCJCIbKEI=?=
- =?ISO-2022-JP?B?GyRCJCQbKEI=?=
+"From: =?ISO-2022-JP?B?GyRCJCIbKEI=?=\r
+ =?ISO-2022-JP?B?GyRCJCQbKEI=?=\r
  <akr@jaist.ac.jp>"
 "From: $B$"$$(B <akr@jaist.ac.jp>")
 
 (decode
-"From: =?ISO-2022-JP?B?GyRCJCIbKEI=?=
-	=?ISO-2022-JP?B?GyRCJCQbKEI=?=
+"From: =?ISO-2022-JP?B?GyRCJCIbKEI=?=\r
+	=?ISO-2022-JP?B?GyRCJCQbKEI=?=\r
  <akr@jaist.ac.jp>"
 "From: $B$"$$(B <akr@jaist.ac.jp>")
 
 (decode
-"From: =?ISO-2022-JP?B?GyRCJCIbKEI=?==?ISO-2022-JP?B?GyRCJCQbKEI=?=
- <akr@jaist.ac.jp>"
-"From: =?ISO-2022-JP?B?GyRCJCIbKEI=?==?ISO-2022-JP?B?GyRCJCQbKEI=?= <akr@jaist.ac.jp>")
-
-(decode
-"From: akr@jaist.ac.jp
- (=?ISO-2022-JP?B?GyRCJCIbKEI=?=\\a=?ISO-2022-JP?B?GyRCJCQbKEI=?=)"
-"From: akr@jaist.ac.jp ($B$"(B\\a$B$$(B)")
-
-(decode
-"From: akr@jaist.ac.jp
- (=?ISO-2022-JP?B?GyRCJCIbKEI=?=a=?ISO-2022-JP?B?GyRCJCQbKEI=?=)"
-"From: akr@jaist.ac.jp (=?ISO-2022-JP?B?GyRCJCIbKEI=?=a=?ISO-2022-JP?B?GyRCJCQbKEI=?=)")
-
-(decode
-"From: akr@jaist.ac.jp
- (=?ISO-2022-JP?B?GyRCJCIbKEI=?=(=?ISO-2022-JP?B?GyRCJCQbKEI=?=)=?ISO-2022-JP?B?GyRCJCYbKEI=?=)"
-"From: akr@jaist.ac.jp (=?ISO-2022-JP?B?GyRCJCIbKEI=?=(=?ISO-2022-JP?B?GyRCJCQbKEI=?=)=?ISO-2022-JP?B?GyRCJCYbKEI=?=)")
-
-(decode
-"From: akr@jaist.ac.jp
- (=?ISO-2022-JP?B?GyRCJCIbKEI=?=(=?ISO-2022-JP?B?GyRCJCQbKEI=?=)=?ISO-2022-JP?B?GyRCJCYbKEI=?=)"
-"From: akr@jaist.ac.jp ($B$"(B($B$$(B)$B$&(B)"
-'ignore-76bytes-limit)
-
-(encode
-"From: akr@jaist.ac.jp ($B$"(B($B$$(B)$B$&(B)"
-"From: akr@jaist.ac.jp
- (=?ISO-2022-JP?B?GyRCJCIbKEI=?=(=?ISO-2022-JP?B?GyRCJCQbKEI=?=)=?ISO-2022-JP?B?GyRCJCYbKEI=?=)"
-'ignore-76bytes-limit)
+"From: =?ISO-2022-JP?B?GyRCJCIbKEI=?= \"ja \\\"a\\\"\" <akr@jaist.ac.jp>"
+"From: $B$"(B \"ja \\\"a\\\"\" <akr@jaist.ac.jp>")
 
 (decode
-"From: akr@jaist.ac.jp (=?ISO-2022-JP?B?GyRCJCIbKEI=?=
- =?ISO-2022-JP?B?GyhC?=(=?ISO-2022-JP?B?GyRCJCQbKEI=?=
+"From: akr@jaist.ac.jp (=?ISO-2022-JP?B?GyRCJCIbKEI=?=\r
+ =?ISO-2022-JP?B?GyhC?=(=?ISO-2022-JP?B?GyRCJCQbKEI=?=\r
  =?ISO-2022-JP?B?GyhC?=)=?ISO-2022-JP?B?GyRCJCYbKEI=?=)"
 "From: akr@jaist.ac.jp ($B$"(B($B$$(B)$B$&(B)")
 
-(encode
-"From: akr@jaist.ac.jp ($B$"(B($B$$(B)$B$&(B)"
-"From: akr@jaist.ac.jp (=?ISO-2022-JP?B?GyRCJCIbKEI=?=
- =?ISO-2022-JP?B?GyhC?=(=?ISO-2022-JP?B?GyRCJCQbKEI=?=
- =?ISO-2022-JP?B?GyhC?=)=?ISO-2022-JP?B?GyRCJCYbKEI=?=)"
-'zero-characters-encoded-word-hack)
-
 (decode
 "From: a=?ISO-2022-JP?B?GyRCJCIbKEI=?= <akr@jaist.ac.jp>"
 "From: a=?ISO-2022-JP?B?GyRCJCIbKEI=?= <akr@jaist.ac.jp>")
@@ -220,45 +261,6 @@
 "From: a=?ISO-2022-JP?B?GyRCJCIbKEI=?=b <akr@jaist.ac.jp>")
 
 (decode
-"From: (a)=?ISO-2022-JP?B?GyRCJCIbKEI=?= <akr@jaist.ac.jp>"
-"From: (a)=?ISO-2022-JP?B?GyRCJCIbKEI=?= <akr@jaist.ac.jp>")
-
-(decode
-"From: =?ISO-2022-JP?B?GyRCJCIbKEI=?=(b) <akr@jaist.ac.jp>"
-"From: =?ISO-2022-JP?B?GyRCJCIbKEI=?=(b) <akr@jaist.ac.jp>")
-
-(decode
-"From: (a)=?ISO-2022-JP?B?GyRCJCIbKEI=?=(b) <akr@jaist.ac.jp>"
-"From: (a)=?ISO-2022-JP?B?GyRCJCIbKEI=?=(b) <akr@jaist.ac.jp>")
-
-(decode
-"From: (a)=?ISO-2022-JP?B?GyRCJCIbKEI=?= <akr@jaist.ac.jp>"
-"From: (a)$B$"(B <akr@jaist.ac.jp>"
-'permit-sticked-comment)
-
-(decode
-"From: =?ISO-2022-JP?B?GyRCJCIbKEI=?=(b) <akr@jaist.ac.jp>"
-"From: $B$"(B(b) <akr@jaist.ac.jp>"
-'permit-sticked-comment)
-
-(decode
-"From: (a)=?ISO-2022-JP?B?GyRCJCIbKEI=?=(b) <akr@jaist.ac.jp>"
-"From: (a)$B$"(B(b) <akr@jaist.ac.jp>"
-'permit-sticked-comment)
-
-(decode
-"From: \"a\"=?ISO-2022-JP?B?GyRCJCIbKEI=?= <akr@jaist.ac.jp>"
-"From: \"a\"=?ISO-2022-JP?B?GyRCJCIbKEI=?= <akr@jaist.ac.jp>")
-
-(decode
-"From: =?ISO-2022-JP?B?GyRCJCIbKEI=?=\"b\" <akr@jaist.ac.jp>"
-"From: =?ISO-2022-JP?B?GyRCJCIbKEI=?=\"b\" <akr@jaist.ac.jp>")
-
-(decode
-"From: \"a\"=?ISO-2022-JP?B?GyRCJCIbKEI=?=\"b\" <akr@jaist.ac.jp>"
-"From: \"a\"=?ISO-2022-JP?B?GyRCJCIbKEI=?=\"b\" <akr@jaist.ac.jp>")
-
-(decode
 "From: \"=?ISO-2022-JP?B?GyRCJCIbKEI=?=\" <akr@jaist.ac.jp>"
 "From: \"=?ISO-2022-JP?B?GyRCJCIbKEI=?=\" <akr@jaist.ac.jp>")
 
@@ -282,179 +284,19 @@
 "From: (=?US-ASCII?Q?(?=)foo@bar.baz(=?US-ASCII?Q?))baz@bar.foo(?=)"
 "From: (=?US-ASCII?Q?(?=)foo@bar.baz(=?US-ASCII?Q?))baz@bar.foo(?=)")
 
-(encode
-"From: \"$B$"(B($B$"(B)\" <akr@jaist.ac.jp>"
-"From: =?ISO-2022-JP?B?GyRCJCIbKEIoGyRCJCIbKEIp?= <akr@jaist.ac.jp>")
-
 (decode
 "From: =?ISO-2022-JP?B?GyRCJCIbKEIoGyRCJCIbKEIp?= <akr@jaist.ac.jp>"
 "From: \"$B$"(B($B$"(B)\" <akr@jaist.ac.jp>")
 
-(encode
-"From: $B$"(B($B$"(B) <akr@jaist.ac.jp>"
-"From: =?ISO-2022-JP?B?GyRCJCIbKEIoGyRCJCIbKEIp?= <akr@jaist.ac.jp>"
-'encode-sticked-comment-as-atom)
-
-(encode
-"From: $B$"(B($B$"(B) <akr@jaist.ac.jp>"
-"From: =?ISO-2022-JP?B?GyRCJCIbKEI=?=(=?ISO-2022-JP?B?GyRCJCIbKEI=?=)
- <akr@jaist.ac.jp>"
-'permit-sticked-comment)
-
-(encode
-"From: $B$"(B($B$"(B) <akr@jaist.ac.jp>"
-"From: =?ISO-2022-JP?B?GyRCJCIbKEI=?= (=?ISO-2022-JP?B?GyRCJCIbKEI=?=)
- <akr@jaist.ac.jp>"
-'separate-sticked-comment)
-
-(decode
-"From: =?ISO-2022-JP?B?GyRCJCIbKEI=?=(=?ISO-2022-JP?B?GyRCJCIbKEI=?=)
- <akr@jaist.ac.jp>"
-"From: $B$"(B($B$"(B) <akr@jaist.ac.jp>"
-'permit-sticked-comment)
-
 (decode
 "From: =?US-ASCII?Q?=28?= <akr@jaist.ac.jp>, =?US-ASCII?Q?=29?= <akr@jaist.ac.jp>"
-"From: \"(\" <akr@jaist.ac.jp>, \")\" <akr@jaist.ac.jp>")
+"From: \"(\" <akr@jaist.ac.jp>, \")\" <akr@jaist.ac.jp>"
+'ignore-76bytes-limit)
 
 (decode
 "From: =?ISO-2022-JP?B?YSJiGyRCJCIbKEJjXA==?= <akr@jaist.ac.jp>"
 "From: \"a\\\"b$B$"(Bc\\\\\" <akr@jaist.ac.jp>")
 
-(encode
-"From: \"a\\\"b$B$"(Bc\\\\\" <akr@jaist.ac.jp>"
-"From: =?ISO-2022-JP?B?YSJiGyRCJCIbKEJjXA==?= <akr@jaist.ac.jp>")
-
-(decode
-"To: =?ISO-2022-JP?B?GyRCJCIbKEI=?=<akr@jaist.ac.jp>"
-"To: =?ISO-2022-JP?B?GyRCJCIbKEI=?=<akr@jaist.ac.jp>")
-
-(decode
-"To: =?ISO-2022-JP?B?GyRCJCIbKEI=?=<akr@jaist.ac.jp>"
-"To: $B$"(B<akr@jaist.ac.jp>"
-'permit-sticked-special)
-
-(encode
-"To: $B$"(B<akr@jaist.ac.jp>"
-"To: =?ISO-2022-JP?B?GyRCJCIbKEI=?=<akr@jaist.ac.jp>"
-'permit-sticked-special)
-
-(encode
-"To: $B$"(B<akr@jaist.ac.jp>"
-"To: =?ISO-2022-JP?B?GyRCJCIbKEI=?= <akr@jaist.ac.jp>"
-'separate-sticked-special)
-
-(decode
-"To: <akr@jaist.ac.jp>,=?ISO-2022-JP?B?GyRCJCIbKEI=?=<akr@jaist.ac.jp>"
-"To: <akr@jaist.ac.jp>,=?ISO-2022-JP?B?GyRCJCIbKEI=?=<akr@jaist.ac.jp>")
-
-(decode
-"To: <akr@jaist.ac.jp>,=?ISO-2022-JP?B?GyRCJCIbKEI=?=<akr@jaist.ac.jp>"
-"To: <akr@jaist.ac.jp>,$B$"(B<akr@jaist.ac.jp>"
-'permit-sticked-special)
-
-(encode
-"To: <akr@jaist.ac.jp>,$B$"(B<akr@jaist.ac.jp>"
-"To: <akr@jaist.ac.jp>,=?ISO-2022-JP?B?GyRCJCIbKEI=?=<akr@jaist.ac.jp>"
-'permit-sticked-special)
-
-(encode
-"To: <akr@jaist.ac.jp>,$B$"(B<akr@jaist.ac.jp>"
-"To: <akr@jaist.ac.jp>, =?ISO-2022-JP?B?GyRCJCIbKEI=?= <akr@jaist.ac.jp>"
-'separate-sticked-special)
-
-(decode
-"To: akr@jaist.ac.jp,=?ISO-2022-JP?B?GyRCJCIbKEI=?=<akr@jaist.ac.jp>"
-"To: akr@jaist.ac.jp,=?ISO-2022-JP?B?GyRCJCIbKEI=?=<akr@jaist.ac.jp>")
-
-(decode
-"To: akr@jaist.ac.jp,=?ISO-2022-JP?B?GyRCJCIbKEI=?=<akr@jaist.ac.jp>"
-"To: akr@jaist.ac.jp,$B$"(B<akr@jaist.ac.jp>"
-'permit-sticked-special)
-
-(encode
-"To: akr@jaist.ac.jp,$B$"(B<akr@jaist.ac.jp>"
-"To: akr@jaist.ac.jp,=?ISO-2022-JP?B?GyRCJCIbKEI=?=<akr@jaist.ac.jp>"
-'permit-sticked-special)
-
-(encode
-"To: akr@jaist.ac.jp,$B$"(B<akr@jaist.ac.jp>"
-"To: akr@jaist.ac.jp, =?ISO-2022-JP?B?GyRCJCIbKEI=?= <akr@jaist.ac.jp>"
-'separate-sticked-special)
-
-(decode
-"To: =?ISO-2022-JP?B?GyRCJCIbKEI=?=:akr@jaist.ac.jp;"
-"To: =?ISO-2022-JP?B?GyRCJCIbKEI=?=:akr@jaist.ac.jp;")
-
-(decode
-"To: =?ISO-2022-JP?B?GyRCJCIbKEI=?=:akr@jaist.ac.jp;"
-"To: $B$"(B:akr@jaist.ac.jp;"
-'permit-sticked-special)
-
-(encode
-"To: $B$"(B:akr@jaist.ac.jp;"
-"To: =?ISO-2022-JP?B?GyRCJCIbKEI=?=:akr@jaist.ac.jp;"
-'permit-sticked-special)
-
-(encode
-"To: $B$"(B:akr@jaist.ac.jp;"
-"To: =?ISO-2022-JP?B?GyRCJCIbKEI=?= :akr@jaist.ac.jp;"
-'separate-sticked-special)
-
-(decode
-"To: =?ISO-2022-JP?B?GyRCJCIbKEI=?=:=?ISO-2022-JP?B?GyRCJCQbKEI=?=<akr@jaist.ac.jp>;"
-"To: =?ISO-2022-JP?B?GyRCJCIbKEI=?=:=?ISO-2022-JP?B?GyRCJCQbKEI=?=<akr@jaist.ac.jp>;")
-
-(decode
-"To: =?ISO-2022-JP?B?GyRCJCIbKEI=?=:=?ISO-2022-JP?B?GyRCJCQbKEI=?=<akr@jaist.ac.jp>;"
-"To: $B$"(B:$B$$(B<akr@jaist.ac.jp>;"
-'ignore-76bytes-limit 'permit-sticked-special)
-
-(encode
-"To: $B$"(B:$B$$(B<akr@jaist.ac.jp>;"
-"To: =?ISO-2022-JP?B?GyRCJCIbKEI=?=:=?ISO-2022-JP?B?GyRCJCQbKEI=?=<akr@jaist.ac.jp>;"
-'ignore-76bytes-limit 'permit-sticked-special)
-
-(encode
-"To: $B$"(B:$B$$(B<akr@jaist.ac.jp>;"
-"To: =?ISO-2022-JP?B?GyRCJCIbKEI=?=:=?ISO-2022-JP?B?GyRCJCQbKEI=?=
- =?ISO-2022-JP?B?GyhC?=<akr@jaist.ac.jp>;"
-'zero-characters-encoded-word-hack 'permit-sticked-special)
-
-(encode
-"To: $B$"(B:$B$$(B<akr@jaist.ac.jp>;"
-"To: =?ISO-2022-JP?B?GyRCJCIbKEI=?= : =?ISO-2022-JP?B?GyRCJCQbKEI=?=
- <akr@jaist.ac.jp>;"
-'separate-sticked-special)
-
-(decode
-"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>"
-"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>")
-
-(decode
-"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>"
-"To: $B$"(B:$B$$(B<foo@bar>,$B$&(B<foo@bar>;,$B$((B<foo@bar>"
-'ignore-76bytes-limit 'permit-sticked-special)
-
-(encode
-"To: $B$"(B:$B$$(B<foo@bar>,$B$&(B<foo@bar>;,$B$((B<foo@bar>"
-"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>"
-'ignore-76bytes-limit 'permit-sticked-special)
-
-(encode
-"To: $B$"(B:$B$$(B<foo@bar>,$B$&(B<foo@bar>;,$B$((B<foo@bar>"
-"To: =?ISO-2022-JP?B?GyRCJCIbKEI=?=:=?ISO-2022-JP?B?GyRCJCQbKEI=?=
- =?ISO-2022-JP?B?GyhC?=<foo@bar>,=?ISO-2022-JP?B?GyRCJCYbKEI=?=
- =?ISO-2022-JP?B?GyhC?=<foo@bar>;,=?ISO-2022-JP?B?GyRCJCgbKEI=?=<foo@bar>"
-'zero-characters-encoded-word-hack 'permit-sticked-special)
-
-(encode
-"To: $B$"(B:$B$$(B<foo@bar>,$B$&(B<foo@bar>;,$B$((B<foo@bar>"
-"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>"
-'separate-sticked-special)
-
 (decode
 "Subject: =?ISO-2022-JP?B?GyRCJCIbKEI=?="
 "Subject: $B$"(B")
@@ -508,37 +350,243 @@
 "Subject: =?ISO-2022-JP?B??=")
 
 (decode
-"Subject: =?ISO-2022-JP?B?DQoNCg==?="
-"Subject: ")
-
-(decode
-"Subject: =?US-ASCII?Q?a=0D=0A_b?="
-"Subject: a b")
-
-(decode
-"Subject: =?ISO-2022-JP?B?GyRCJCIbKEI=?= a
+"Subject: =?ISO-2022-JP?B?GyRCJCIbKEI=?= a\r
  =?ISO-2022-JP?B?GyRCJCQbKEI=?="
-"From: $B$"(B a $B$$(B")
-
-(encode
-"Subject: $B0$(B                                                                                                                          $BR_(B"
-"Subject: =?ISO-2022-JP?B?GyRCMCQbKEIgICAgICAgICAgICAgICAgICAgICAgICAgICAg?=
- =?US-ASCII?Q?____________________________________________________________?=
- =?ISO-2022-JP?B?ICAgICAgICAgICAgICAgICAgICAgICAgICAgICAgICAgIBskQlJfGyhC?=")
+"Subject: $B$"(B a $B$$(B")
 
 (decode
-"Subject: =?ISO-2022-JP?B?GyRCMCQbKEIgICAgICAgICAgICAgICAgICAgICAgICAgICAg?=
- =?US-ASCII?Q?____________________________________________________________?=
+"Subject: =?ISO-2022-JP?B?GyRCMCQbKEIgICAgICAgICAgICAgICAgICAgICAgICAgICAg?=\r
+ =?US-ASCII?Q?____________________________________________________________?=\r
  =?ISO-2022-JP?B?ICAgICAgICAgICAgICAgICAgICAgICAgICAgICAgICAgIBskQlJfGyhC?="
 "Subject: $B0$(B                                                                                                                          $BR_(B")
 
-(encode
-"Subject: $B0$(B                                                                                                                          $BR_(B"
-"Subject: =?ISO-2022-JP?B?GyQpQrCkICAgICAgICAgICAgICAgICAgICAgICAgICAgICAgICAgICAgICAgICAgICAgICAgICAgICAgICAgICAgICAgICAgICAgICAgICAgICAgICAgICAgICAgICAgICAgICAgICAgICAgICAgICAgICAgICAgICAgICAgICDS3w=="
-'ignore-76bytes-limit 'ignore-75bytes-limit)
+(decode
+"From: =?ISO-8859-1?Q?abcdefghijklmnopqrst=A1=28=29=22=5C?= <akr@jaist.ac.jp>"
+"From: \"abcdefghijklmnopqrst.AN!()\\\"\\\\\" <akr@jaist.ac.jp>")*B
 
 (decode
-"Subject:=?ISO-2022-JP?B?GyRCJCIbKEI=?="
+"Subject: ?= =?"
+"Subject: ?= =?")
+
+(decode
+"Subject: \" =?ISO-2022-JP?B?GyRCJCIbKEI=?= \""
+"Subject: \" $B$"(B \"")
+
+(decode
+"From: \"\\\\\" =?ISO-2022-JP?B?GyRCJCIbKEI=?= \"\" <akr@jaist.ac.jp>"
+"From: \"\\\\\" $B$"(B \"\" <akr@jaist.ac.jp>")
+
+(decode
+"Subject: =?ISO-2022-JP?Q?=1B$B$\"=1B(B_=1B$B$\"=1B(B?="
+"Subject: $B$"(B $B$"(B")
+
+(decode
+"Subject: =?ISO-2022-JP?Q?=1B$B$\"=1B(B =1B$B$\"=1B(B?="
+"Subject: =?ISO-2022-JP?Q?=1B$B$\"=1B(B =1B$B$\"=1B(B?=")
+
+(decode
+"Subject: =?ISO-2022-JP?B?GyRCJCIbKEI=?= a =?ISO-8859-8?Q?=E0?="
+"Subject: $B$"(B a .HN`")*B
+
+(decode
+"Subject: =?ISO-8859-8?Q?=E0?= =?ISO-2022-JP?B?GyRCTm0bKEI=?="
+"Subject: .HN`$BNm(B")*B
+
+(decode
+"Subject: =?ISO-8859-8?Q?=E0_?= =?ISO-2022-JP?B?GyRCTm0bKEI=?="
+"Subject: .HN` $BNm(B")*B
+
+(decode
+"Subject: =?ISO-2022-JP-2?B?Gy5GG05DGyRCNFg/dBsoQg==?="
+"Subject: .FNC$B4X?t(B")*B
+
+(decode
+"Subject: =?ISO-8859-7?Q?=C3?= =?ISO-2022-JP?B?GyRCNFg/dBsoQg==?="
+"Subject: .FNC$B4X?t(B")*B
+
+(decode
+"Subject: =?Shift_JIS?B?gqA=?="
+"Subject: $B$"(B"
+'quoted-encoded-word)
+
+(decode
+"Subject: =?EUC-JP?B?pKI=?="
+"Subject: $B$"(B"
+'quoted-encoded-word)
+
+(decode
+"Subject: = =?ISO-2022-JP?B?GyRCJCIbKEI=?="
+"Subject: = $B$"(B")
+
+(decode
+"Subject: =? =?ISO-2022-JP?B?GyRCJCIbKEI=?="
+"Subject: =? $B$"(B")
+
+(decode
+"Subject: =?ISO-2022-JP =?ISO-2022-JP?B?GyRCJCIbKEI=?="
+"Subject: =?ISO-2022-JP $B$"(B")
+
+(decode
+"Subject: =?ISO-2022-JP? =?ISO-2022-JP?B?GyRCJCIbKEI=?="
+"Subject: =?ISO-2022-JP? $B$"(B")
+
+(decode
+"Subject: =?ISO-2022-JP?B =?ISO-2022-JP?B?GyRCJCIbKEI=?="
+"Subject: =?ISO-2022-JP?B $B$"(B")
+
+(decode
+"Subject: =?ISO-2022-JP?B? =?ISO-2022-JP?B?GyRCJCIbKEI=?="
+"Subject: =?ISO-2022-JP?B? $B$"(B")
+
+(decode
+"Subject: =?ISO-2022-JP?B?GyRCJCIbKEI =?ISO-2022-JP?B?GyRCJCIbKEI=?="
+"Subject: =?ISO-2022-JP?B?GyRCJCIbKEI $B$"(B")
+
+(decode
+"Subject: =?ISO-2022-JP?B?GyRCJCIbKEI= =?ISO-2022-JP?B?GyRCJCIbKEI=?="
+"Subject: =?ISO-2022-JP?B?GyRCJCIbKEI= $B$"(B")
+
+(decode
+"Subject: =?ISO-2022-JP?B?GyRCJCIbKEI=? =?ISO-2022-JP?B?GyRCJCIbKEI=?="
+"Subject: =?ISO-2022-JP?B?GyRCJCIbKEI=? $B$"(B")
+
+(decode
+"Subject: =?ISO-2022-JP?B?GyRCJCIbKEI=?= =?ISO-2022-JP?B?GyRCJCIbKEI=?="
+"Subject: $B$"$"(B")
+
+(decode
+"Subject: ==?ISO-2022-JP?B?GyRCJCIbKEI=?="
+"Subject: ==?ISO-2022-JP?B?GyRCJCIbKEI=?=")
+
+(decode
+"Subject: =?ISO-2022-JP?B?GyRCJCIbKEI=?=="
+"Subject: =?ISO-2022-JP?B?GyRCJCIbKEI=?==")
+
+(decode
+"From: akr@jaist.ac.jp (\\=?ISO-2022-JP?B?GyRCJCIbKEI=?=)"
+"From: akr@jaist.ac.jp (\\=?ISO-2022-JP?B?GyRCJCIbKEI=?=)")
+
+(decode
+"=?ISO-2022-JP?B?GyRCJCIbKEI=?=: test"
+"=?ISO-2022-JP?B?GyRCJCIbKEI=?=: test")
+
+(decode
+"=?ISO-2022-JP?B?GyRCJCIbKEI=?=: test"
+"=?ISO-2022-JP?B?GyRCJCIbKEI=?=: test"
+'permit-sticked-special)
+
+;;; Section 3: Decoding melancholic inputs.
+
+(decode
+"From:=?ISO-2022-JP?B?GyRCJCIbKEI=?= <akr@jaist.ac.jp>"
+"From:$B$"(B <akr@jaist.ac.jp>")
+
+(decode
+"From: akr@jaist.ac.jp\r
+ (=?ISO-2022-JP?B?GyRCJCIbKEI=?=\\a=?ISO-2022-JP?B?GyRCJCQbKEI=?=)"
+"From: akr@jaist.ac.jp ($B$"(B\\a$B$$(B)")
+
+(decode
+"From: (a)=?ISO-2022-JP?B?GyRCJCIbKEI=?= <akr@jaist.ac.jp>"
+"From: (a)=?ISO-2022-JP?B?GyRCJCIbKEI=?= <akr@jaist.ac.jp>")
+
+(decode
+"From: =?ISO-2022-JP?B?GyRCJCIbKEI=?=(b) <akr@jaist.ac.jp>"
+"From: =?ISO-2022-JP?B?GyRCJCIbKEI=?=(b) <akr@jaist.ac.jp>")
+
+(decode
+"From: (a)=?ISO-2022-JP?B?GyRCJCIbKEI=?=(b) <akr@jaist.ac.jp>"
+"From: (a)=?ISO-2022-JP?B?GyRCJCIbKEI=?=(b) <akr@jaist.ac.jp>")
+
+(decode
+"From: (a)=?ISO-2022-JP?B?GyRCJCIbKEI=?= <akr@jaist.ac.jp>"
+"From: (a)$B$"(B <akr@jaist.ac.jp>"
+'permit-sticked-comment)
+
+(decode
+"From: =?ISO-2022-JP?B?GyRCJCIbKEI=?=(b) <akr@jaist.ac.jp>"
+"From: $B$"(B(b) <akr@jaist.ac.jp>"
+'permit-sticked-comment)
+
+(decode
+"From: (a)=?ISO-2022-JP?B?GyRCJCIbKEI=?=(b) <akr@jaist.ac.jp>"
+"From: (a)$B$"(B(b) <akr@jaist.ac.jp>"
+'permit-sticked-comment)
+
+(decode
+"From: \"a\"=?ISO-2022-JP?B?GyRCJCIbKEI=?= <akr@jaist.ac.jp>"
+"From: \"a\"=?ISO-2022-JP?B?GyRCJCIbKEI=?= <akr@jaist.ac.jp>")
+
+(decode
+"From: =?ISO-2022-JP?B?GyRCJCIbKEI=?=\"b\" <akr@jaist.ac.jp>"
+"From: =?ISO-2022-JP?B?GyRCJCIbKEI=?=\"b\" <akr@jaist.ac.jp>")
+
+(decode
+"From: \"a\"=?ISO-2022-JP?B?GyRCJCIbKEI=?=\"b\" <akr@jaist.ac.jp>"
+"From: \"a\"=?ISO-2022-JP?B?GyRCJCIbKEI=?=\"b\" <akr@jaist.ac.jp>")
+
+(decode
+"From: =?ISO-2022-JP?B?GyRCJCIbKEI=?=(=?ISO-2022-JP?B?GyRCJCIbKEI=?=)\r
+ <akr@jaist.ac.jp>"
+"From: $B$"(B($B$"(B) <akr@jaist.ac.jp>"
+'permit-sticked-comment)
+
+(decode
+"To: =?ISO-2022-JP?B?GyRCJCIbKEI=?=<akr@jaist.ac.jp>"
+"To: =?ISO-2022-JP?B?GyRCJCIbKEI=?=<akr@jaist.ac.jp>")
+
+(decode
+"To: =?ISO-2022-JP?B?GyRCJCIbKEI=?=<akr@jaist.ac.jp>"
+"To: $B$"(B<akr@jaist.ac.jp>"
+'permit-sticked-special)
+
+(decode
+"To: <akr@jaist.ac.jp>,=?ISO-2022-JP?B?GyRCJCIbKEI=?=<akr@jaist.ac.jp>"
+"To: <akr@jaist.ac.jp>,=?ISO-2022-JP?B?GyRCJCIbKEI=?=<akr@jaist.ac.jp>")
+
+(decode
+"To: <akr@jaist.ac.jp>,=?ISO-2022-JP?B?GyRCJCIbKEI=?=<akr@jaist.ac.jp>"
+"To: <akr@jaist.ac.jp>,$B$"(B<akr@jaist.ac.jp>"
+'permit-sticked-special)
+
+(decode
+"To: akr@jaist.ac.jp,=?ISO-2022-JP?B?GyRCJCIbKEI=?=<akr@jaist.ac.jp>"
+"To: akr@jaist.ac.jp,=?ISO-2022-JP?B?GyRCJCIbKEI=?=<akr@jaist.ac.jp>")
+
+(decode
+"To: akr@jaist.ac.jp,=?ISO-2022-JP?B?GyRCJCIbKEI=?=<akr@jaist.ac.jp>"
+"To: akr@jaist.ac.jp,$B$"(B<akr@jaist.ac.jp>"
+'permit-sticked-special)
+
+(decode
+"To: =?ISO-2022-JP?B?GyRCJCIbKEI=?=:akr@jaist.ac.jp;"
+"To: =?ISO-2022-JP?B?GyRCJCIbKEI=?=:akr@jaist.ac.jp;")
+
+(decode
+"To: =?ISO-2022-JP?B?GyRCJCIbKEI=?=:akr@jaist.ac.jp;"
+"To: $B$"(B:akr@jaist.ac.jp;"
+'permit-sticked-special)
+
+(decode
+"To: =?ISO-2022-JP?B?GyRCJCIbKEI=?=:=?ISO-2022-JP?B?GyRCJCQbKEI=?=<akr@jaist.ac.jp>;"
+"To: =?ISO-2022-JP?B?GyRCJCIbKEI=?=:=?ISO-2022-JP?B?GyRCJCQbKEI=?=<akr@jaist.ac.jp>;")
+
+(decode
+"To: =?ISO-2022-JP?B?GyRCJCIbKEI=?=:=?ISO-2022-JP?B?GyRCJCQbKEI=?=<akr@jaist.ac.jp>;"
+"To: $B$"(B:$B$$(B<akr@jaist.ac.jp>;"
+'ignore-76bytes-limit 'permit-sticked-special)
+
+(decode
+"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>"
+"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>")
+
+(decode
+"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>"
+"To: $B$"(B:$B$$(B<foo@bar>,$B$&(B<foo@bar>;,$B$((B<foo@bar>"
+'ignore-76bytes-limit 'permit-sticked-special)
+
+(decode
+"Subject:=?ISO-2022-JP?B?GyRCJCIbKEI=?="
 "Subject:=?ISO-2022-JP?B?GyRCJCIbKEI=?=")
 
 (decode
@@ -546,62 +594,134 @@
 "Subject:$B$"(B"
 'permit-sticked-special)
 
-(encode
-"From: .AN! <akr@jaist.ac.jp>"*B
-"From: =?ISO-8859-1?Q?=A1?= <akr@jaist.ac.jp>")
+;;; Section 4: Decoding invalid inputs.
 
 (decode
-"From: =?ISO-8859-1?Q?abcdefghijklmnopqrst=A1=28=29=22=5C?= <akr@jaist.ac.jp>"
-"From: \"abcdefghijklmnopqrst.AN!()\\\"\\\\\" <akr@jaist.ac.jp>")*B
+"From: =?ISO-2022-JP?B?GyRCJCIbKEI=?==?ISO-2022-JP?B?GyRCJCQbKEI=?=\r
+ <akr@jaist.ac.jp>"
+"From: =?ISO-2022-JP?B?GyRCJCIbKEI=?==?ISO-2022-JP?B?GyRCJCQbKEI=?= <akr@jaist.ac.jp>")
 
-(encode
-"From: \"abcdefghijklmnopqrst.AN!()\\\"\\\\\" <akr@jaist.ac.jp>"*B
-"From: =?ISO-8859-1?Q?abcdefghijklmnopqrst=A1=28=29=22=5C?= <akr@jaist.ac.jp>")
+(decode
+"From: akr@jaist.ac.jp\r
+ (=?ISO-2022-JP?B?GyRCJCIbKEI=?=a=?ISO-2022-JP?B?GyRCJCQbKEI=?=)"
+"From: akr@jaist.ac.jp (=?ISO-2022-JP?B?GyRCJCIbKEI=?=a=?ISO-2022-JP?B?GyRCJCQbKEI=?=)")
 
-(encode
-"From: akr@jaist.ac.jp (abcdefghijklmnopqrst.AN!\\(\\)\"\\\\)"*B
-"From: akr@jaist.ac.jp (=?ISO-8859-1?Q?abcdefghijklmnopqrst=A1=28=29\"=5C?=)")
+(decode
+"From: akr@jaist.ac.jp\r
+ (=?ISO-2022-JP?B?GyRCJCIbKEI=?=(=?ISO-2022-JP?B?GyRCJCQbKEI=?=)=?ISO-2022-JP?B?GyRCJCYbKEI=?=)"
+"From: akr@jaist.ac.jp (=?ISO-2022-JP?B?GyRCJCIbKEI=?=(=?ISO-2022-JP?B?GyRCJCQbKEI=?=)=?ISO-2022-JP?B?GyRCJCYbKEI=?=)")
 
 (decode
-"Subject: ?= =?"
-"Subject: ?= =?")
+"From: akr@jaist.ac.jp\r
+ (=?ISO-2022-JP?B?GyRCJCIbKEI=?=(=?ISO-2022-JP?B?GyRCJCQbKEI=?=)=?ISO-2022-JP?B?GyRCJCYbKEI=?=)"
+"From: akr@jaist.ac.jp ($B$"(B($B$$(B)$B$&(B)"
+'ignore-76bytes-limit)
 
 (decode
-"Subject: \" =?ISO-2022-JP?B?GyRCJCIbKEI=?= \""
-"Subject: \" $B$"(B \"")
+"Subject: =?=?ISO-2022-JP?B?GyRCJCIbKEI=?="
+"Subject: =?=?ISO-2022-JP?B?GyRCJCIbKEI=?=")
 
 (decode
-"From: \"\\\\\" =?ISO-2022-JP?B?GyRCJCIbKEI=?= \"\" <akr@jaist.ac.jp>"
-"From: \"\\\\\" $B$"(B \"\" <akr@jaist.ac.jp>")
+"Subject: =?ISO-2022-JP=?ISO-2022-JP?B?GyRCJCIbKEI=?="
+"Subject: =?ISO-2022-JP=?ISO-2022-JP?B?GyRCJCIbKEI=?=")
 
 (decode
-"Subject: =?ISO-2022-JP?Q?=1B$B$\"=1B(B_=1B$B$\"=1B(B?="
-"Subject: $B$"(B $B$"(B")
+"Subject: =?ISO-2022-JP?=?ISO-2022-JP?B?GyRCJCIbKEI=?="
+"Subject: =?ISO-2022-JP?=?ISO-2022-JP?B?GyRCJCIbKEI=?=")
 
 (decode
-"Subject: =?ISO-2022-JP?Q?=1B$B$\"=1B(B =1B$B$\"=1B(B?="
-"Subject: =?ISO-2022-JP?Q?=1B$B$\"=1B(B =1B$B$\"=1B(B?=")
+"Subject: =?ISO-2022-JP?B=?ISO-2022-JP?B?GyRCJCIbKEI=?="
+"Subject: =?ISO-2022-JP?B=?ISO-2022-JP?B?GyRCJCIbKEI=?=")
 
 (decode
-"Subject: =?ISO-2022-JP?B?GyRCJCIbKEI=?= a =?ISO-8859-8?Q?=E0?="
-"Subject: $B$"(B a .HN`")*B
+"Subject: =?ISO-2022-JP?B?=?ISO-2022-JP?B?GyRCJCIbKEI=?="
+"Subject: =?ISO-2022-JP?B?=?ISO-2022-JP?B?GyRCJCIbKEI=?=")
+
+(decode
+"Subject: =?ISO-2022-JP?B?GyRCJCIbKEI=?ISO-2022-JP?B?GyRCJCIbKEI=?="
+"Subject: =?ISO-2022-JP?B?GyRCJCIbKEI=?ISO-2022-JP?B?GyRCJCIbKEI=?=")
+
+(decode
+"Subject: =?ISO-2022-JP?B?GyRCJCIbKEI==?ISO-2022-JP?B?GyRCJCIbKEI=?="
+"Subject: =?ISO-2022-JP?B?GyRCJCIbKEI==?ISO-2022-JP?B?GyRCJCIbKEI=?=")
+
+(decode
+"Subject: =?ISO-2022-JP?B?GyRCJCIbKEI=?=?ISO-2022-JP?B?GyRCJCIbKEI=?="
+"Subject: =?ISO-2022-JP?B?GyRCJCIbKEI=?=?ISO-2022-JP?B?GyRCJCIbKEI=?=")
+
+(decode
+"Subject: =?ISO-2022-JP?B?GyRCJCIbKEI=?==?ISO-2022-JP?B?GyRCJCIbKEI=?="
+"Subject: =?ISO-2022-JP?B?GyRCJCIbKEI=?==?ISO-2022-JP?B?GyRCJCIbKEI=?=")
+
+(decode
+"Subject: =?ISO-2022-JP?B?GyRCJCIbKEI?="
+"Subject: =?ISO-2022-JP?B?GyRCJCIbKEI?=")
+
+(decode
+"Subject: =?ISO-2022-JP?B?GyRCNFg-dBsoQg==?="
+"Subject: =?ISO-2022-JP?B?GyRCNFg-dBsoQg==?=")
+
+(decode
+"Subject: =?ISO-2022-JP?B?GyRCJCIbKEI=?= =?= =?ISO-2022-JP?B?GyRCJCIbKEI=?="
+"Subject: $B$"(B=?=$B$"(B")
+
+;;; Section 5: Encoding proper inputs.
+
+(encode
+"From: $B$"(B <akr@jaist.ac.jp>"
+"From: =?ISO-2022-JP?B?GyRCJCIbKEI=?= <akr@jaist.ac.jp>")
+
+(encode
+"From: $B$"$$(B <akr@jaist.ac.jp>"
+"From: =?ISO-2022-JP?B?GyRCJCIkJBsoQg==?= <akr@jaist.ac.jp>")
+
+(encode
+"From: $B$"(B $B$$(B <akr@jaist.ac.jp>"
+"From: =?ISO-2022-JP?B?GyRCJCIbKEIgGyRCJCQbKEI=?= <akr@jaist.ac.jp>")
+
+(encode
+"From: .AN! N! <akr@jaist.ac.jp>"*B
+"From: =?ISO-8859-1?Q?=A1_=A1?= <akr@jaist.ac.jp>")
+
+(encode
+"From: \"$B$"(B($B$"(B)\" <akr@jaist.ac.jp>"
+"From: =?ISO-2022-JP?B?GyRCJCIbKEIoGyRCJCIbKEIp?= <akr@jaist.ac.jp>")
+
+(encode
+"From: \"a\\\"b$B$"(Bc\\\\\" <akr@jaist.ac.jp>"
+"From: =?ISO-2022-JP?B?YSJiGyRCJCIbKEJjXA==?= <akr@jaist.ac.jp>")
+
+(encode
+"Subject: $B0$(B                                                                                                                          $BR_(B"
+"Subject: =?ISO-2022-JP?B?GyRCMCQbKEIgICAgICAgICAgICAgICAgICAgICAgICAgICAg?=\r
+ =?US-ASCII?Q?____________________________________________________________?=\r
+ =?ISO-2022-JP?B?ICAgICAgICAgICAgICAgICAgICAgICAgICAgICAgICAgIBskQlJfGyhC?=")
+
+(encode
+"Subject: $B0$(B                                                                                                                          $BR_(B"
+"Subject: =?ISO-2022-JP?B?GyQpQrCkICAgICAgICAgICAgICAgICAgICAgICAgICAgICAgICAgICAgICAgICAgICAgICAgICAgICAgICAgICAgICAgICAgICAgICAgICAgICAgICAgICAgICAgICAgICAgICAgICAgICAgICAgICAgICAgICAgICAgICAgICDS3w=="
+'ignore-76bytes-limit 'ignore-75bytes-limit)
+
+(encode
+"From: .AN! <akr@jaist.ac.jp>"*B
+"From: =?ISO-8859-1?Q?=A1?= <akr@jaist.ac.jp>")
+
+(encode
+"From: \"abcdefghijklmnopqrst.AN!()\\\"\\\\\" <akr@jaist.ac.jp>"*B
+"From: =?ISO-8859-1?Q?abcdefghijklmnopqrst=A1=28=29=22=5C?= <akr@jaist.ac.jp>")
+
+(encode
+"From: akr@jaist.ac.jp (abcdefghijklmnopqrst.AN!\\(\\)\"\\\\)"*B
+"From: akr@jaist.ac.jp (=?ISO-8859-1?Q?abcdefghijklmnopqrst=A1=28=29\"=5C?=)")
 
 (encode
 "Subject: $B$"(B a .HN`"*B
 "Subject: =?ISO-2022-JP?B?GyRCJCIbKEI=?= a =?ISO-8859-8?Q?=E0?=")
 
-(decode
-"Subject: =?ISO-8859-8?Q?=E0?= =?ISO-2022-JP?B?GyRCTm0bKEI=?="
-"Subject: .HN`$BNm(B")*B
-
 (encode
 "Subject: .HN`$BNm(B"*B
 "Subject: =?ISO-8859-8?Q?=E0?= =?ISO-2022-JP?B?GyRCTm0bKEI=?=")
 
-(decode
-"Subject: =?ISO-8859-8?Q?=E0_?= =?ISO-2022-JP?B?GyRCTm0bKEI=?="
-"Subject: .HN` $BNm(B")*B
-
 (encode
 "Subject: .HN` $BNm(B"*B
 '("Subject: =?ISO-8859-8?Q?=E0_?= =?ISO-2022-JP?B?GyRCTm0bKEI=?="
@@ -612,12 +732,530 @@
 '("Subject: =?ISO-8859-7?Q?=C3?= =?ISO-2022-JP?B?GyRCNFg/dBsoQg==?="
   "Subject: =?ISO-2022-JP-2?B?Gy5GG05DGyRCNFg/dBsoQg==?="))
 
+(encode
+"From: aaaaaaaaaaaaaaaaaaaaa($B$"$$(B)aaaaaaaaaaaaaaaaaaaa <akr@jaist.ac.jp>"
+"From: aaaaaaaaaaaaaaaaaaaaa(=?ISO-2022-JP?B?GyRCJCIbKEI=?=\r
+ =?ISO-2022-JP?B?GyRCJCQbKEI=?=)aaaaaaaaaaaaaaaaaaaa <akr@jaist.ac.jp>")
+
+(encode
+"From: aaaaaaaaaaaaaaaaaaaaa ($B$"$$(B)aaaaaaaaaaaaaaaaaaaa <akr@jaist.ac.jp>"
+'("From: aaaaaaaaaaaaaaaaaaaaa
+ (=?ISO-2022-JP?B?GyRCJCIkJBsoQg==?=)aaaaaaaaaaaaaaaaaaaa <akr@jaist.ac.jp>"
+  "From: aaaaaaaaaaaaaaaaaaaaa (=?ISO-2022-JP?B?GyRCJCIbKEI=?=
+ =?ISO-2022-JP?B?GyRCJCQbKEI=?=)aaaaaaaaaaaaaaaaaaaa <akr@jaist.ac.jp>"))
+
+(encode
+"From: aaaaaaaaaaaaaaaaaaaaa( $B$"$$(B)aaaaaaaaaaaaaaaaaaaa <akr@jaist.ac.jp>"
+'("From: aaaaaaaaaaaaaaaaaaaaa(
+ =?ISO-2022-JP?B?GyRCJCIkJBsoQg==?=)aaaaaaaaaaaaaaaaaaaa <akr@jaist.ac.jp>"
+  "From: aaaaaaaaaaaaaaaaaaaaa( =?ISO-2022-JP?B?GyRCJCIbKEI=?=
+ =?ISO-2022-JP?B?GyRCJCQbKEI=?=)aaaaaaaaaaaaaaaaaaaa <akr@jaist.ac.jp>"))
+
+(encode
+"From: aaaaaaaaaaaaaaaaaaaaa($B$"$$(B )aaaaaaaaaaaaaaaaaaaa <akr@jaist.ac.jp>"
+'("From: aaaaaaaaaaaaaaaaaaaaa(=?ISO-2022-JP?B?GyRCJCIkJBsoQg==?=
+ )aaaaaaaaaaaaaaaaaaaa <akr@jaist.ac.jp>"
+  "From: aaaaaaaaaaaaaaaaaaaaa(=?ISO-2022-JP?B?GyRCJCIbKEI=?=
+ =?ISO-2022-JP?B?GyRCJCQbKEI=?= )aaaaaaaaaaaaaaaaaaaa <akr@jaist.ac.jp>"))
+
+(encode
+"From: aaaaaaaaaaaaaaaaaaaaa($B$"$$(B) aaaaaaaaaaaaaaaaaaaa <akr@jaist.ac.jp>"
+"From: aaaaaaaaaaaaaaaaaaaaa(=?ISO-2022-JP?B?GyRCJCIkJBsoQg==?=)\r
+ aaaaaaaaaaaaaaaaaaaa <akr@jaist.ac.jp>")
+
+(encode
+"From: aaaaaaaaaaaaaaaaaaaaa($B$"(B $B$$(B)aaaaaaaaaaaaaaaaaaaa <akr@jaist.ac.jp>"
+"From: aaaaaaaaaaaaaaaaaaaaa(=?ISO-2022-JP?B?GyRCJCIbKEIgCg==?=\r
+ =?ISO-2022-JP?B?GyRCJCQbKEI=?=)aaaaaaaaaaaaaaaaaaaa <akr@jaist.ac.jp>")
+
+(encode
+"From: ($B$"(B)aaaaaaaaaaaaaaaaaaaa <akr@jaist.ac.jp>"
+"From: (=?ISO-2022-JP?B?GyRCJCIbKEI=?=)aaaaaaaaaaaaaaaaaaaa <akr@jaist.ac.jp>")
+
+(encode
+"From: ($B$"(B)aaaaaaaaaaaaaaaaaaaaa <akr@jaist.ac.jp>"
+"From: (=?ISO-2022-JP?B?GyRCJCIbKEI=?=)aaaaaaaaaaaaaaaaaaaaa\r
+ <akr@jaist.ac.jp>")
+
+(encode
+"From: ($B$"(B)aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa <akr@jaist.ac.jp>"
+"From: (=?ISO-2022-JP?B?GyRCJCIbKEI=?=)aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa\r
+ <akr@jaist.ac.jp>")
+
+(encode
+"From: ($B$"(B)aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa <akr@jaist.ac.jp>"
+"From:\r
+ (=?ISO-2022-JP?B?GyRCJCIbKEI=?=)aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa\r
+ <akr@jaist.ac.jp>")
+
+(encode
+"From: ($B$"(B)aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa <akr@jaist.ac.jp>"
+"From:\r
+ (=?ISO-2022-JP?B?GyRCJCIbKEI=?=)aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa\r
+ <akr@jaist.ac.jp>")
+
+(encode
+"From: ($B$"(B)aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa <akr@jaist.ac.jp>"
+"From: (=?ISO-2022-JP?B?GyRCJCIbKEI=?=\r
+ =?ISO-2022-JP?B?GyhC?=)aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa\r
+ <akr@jaist.ac.jp>"
+'zero-characters-encoded-word-hack)
+
+(encode
+"From: ($B$"(B)aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa <akr@jaist.ac.jp>"
+"From: (=?ISO-2022-JP?B?GyRCJCIbKEI=?=\r
+ =?ISO-2022-JP?B?GyhC?=)aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa\r
+ <akr@jaist.ac.jp>"
+'zero-characters-encoded-word-hack)
+
+(encode
+"From: ($B$"(B)aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa <akr@jaist.ac.jp>"
+"From: (=?ISO-2022-JP?B?GyRCJCIbKEI=?=)\r
+ aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa <akr@jaist.ac.jp>"
+'separate-sticked-tokens-for-fold)
+
+(encode
+"From: ($B$"(B)aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa <akr@jaist.ac.jp>"
+"From: (=?ISO-2022-JP?B?GyRCJCIbKEI=?=)=?US-ASCII?Q?aaaaaaaaaaaaaaaaaaaaaaa?=\r
+ =?US-ASCII?Q?aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa?= <akr@jaist.ac.jp>"
+'encode-long-ascii-string-for-fold 'permit-sticked-special)
+
+(encode
+"From: ($B$"(B)aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa <akr@jaist.ac.jp>"
+"From: (=?ISO-2022-JP?B?GyRCJCIbKEI=?=)aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa\r
+ aaaaaaaaaaaaaaaa <akr@jaist.ac.jp>"
+'divide-atom-for-fold)
+
+(encode
+"From: ($B$"(B)aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa <akr@jaist.ac.jp>"
+'("From: (=?ISO-2022-JP?B?GyRCJCIbKEI=?=)aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa <akr@jaist.ac.jp>"
+  "From: (=?ISO-2022-JP?B?GyRCJCIbKEI=?=)aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa
+ <akr@jaist.ac.jp>")
+'ignore-76bytes-limit)
+
+(encode
+"From: aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa($B$"(B)aa <akr@jaist.ac.jp>"
+"From: =?US-ASCII?Q?aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa?=\r
+ =?US-ASCII?Q?a?=(=?ISO-2022-JP?B?GyRCJCIbKEI=?=)aa <akr@jaist.ac.jp>"
+'encode-long-ascii-string-for-fold)
+
+(encode
+"From: $B$"(B aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa($B$"(B)aa <akr@jaist.ac.jp>"
+"From: =?ISO-2022-JP?B?GyRCJCIbKEIgYWFhYWFhYWFhYWFhYWFhYWFhYWFhYWFhYWFhYQ==?=\r
+ =?US-ASCII?Q?aaaaaaaaaaaaaaa?=(=?ISO-2022-JP?B?GyRCJCIbKEI=?=)aa"
+'encode-long-ascii-string-for-fold)
+
+(encode
+"From: ($B$"(B) <akr@jaist.ac.jp>"
+"From: (=?ISO-2022-JP?B?GyRCJCIbKEI=?=) <akr@jaist.ac.jp>")
+
+(encode
+"From: (((((((((((((((((((((((((((((((((((((((($B$"(B)))))))))))))))))))))))))))))))))))))))) <akr@jaist.ac.jp>"
+"From: ((((((((((((((((((((((((((((((((((((((((=?ISO-2022-JP?B?GyRCJCIbKEI=?=\r
+ =?ISO-2022-JP?B?GyhC?=))))))))))))))))))))))))))))))))))))))))\r
+ <akr@jaist.ac.jp>"
+'zero-characters-encoded-word-hack)
+
+(encode
+"From: ((((((((((((((((((((((((((((((((((((((((($B$"(B))))))))))))))))))))))))))))))))))))))))) <akr@jaist.ac.jp>"
+"From: (((((((((((((((((((((((((((((((((((((((((=?ISO-2022-JP?B?GyhC?=\r
+ =?ISO-2022-JP?B?GyRCJCIbKEI=?=)))))))))))))))))))))))))))))))))))))))))\r
+ <akr@jaist.ac.jp>"
+'zero-characters-encoded-word-hack)
+
+(encode
+"From: (((((((((((((((((((((((((((((((((((((((((((((($B$"(B)))))))))))))))))))))))))))))))))))))))))))))) <akr@jaist.ac.jp>"
+"From: ((((((((((((((((((((((((((((((((((((((((((((((=?ISO-2022-JP?B?GyhC?=\r
+ =?ISO-2022-JP?B?GyRCJCIbKEI=?=))))))))))))))))))))))))))))))))))))))))))))))\r
+ <akr@jaist.ac.jp>"
+'zero-characters-encoded-word-hack)
+
+(encode
+"From: ((((((((((((((((((((((((((((((((((((((((((((((($B$"(B))))))))))))))))))))))))))))))))))))))))))))))) <akr@jaist.ac.jp>"
+"From: (((((((((((((((((((((((((((((((((((((((((((((((=?ISO-2022-JP?B?GyhC?=\r
+ =?ISO-2022-JP?B?GyRCJCIbKEI=?=\r
+ =?ISO-2022-JP?B?GyhC?=)))))))))))))))))))))))))))))))))))))))))))))))\r
+ <akr@jaist.ac.jp>"
+'zero-characters-encoded-word-hack)
+
+(encode
+"From: (((((((((((((((((((((((((((((((((((((((((((((((($B$"(B)))))))))))))))))))))))))))))))))))))))))))))))) <akr@jaist.ac.jp>"
+"From:\r
+ ((((((((((((((((((((((((((((((((((((((((((((((((=?ISO-2022-JP?B?GyhC?=\r
+ =?ISO-2022-JP?B?GyRCJCIbKEI=?=\r
+ =?ISO-2022-JP?B?GyhC?=))))))))))))))))))))))))))))))))))))))))))))))))\r
+ <akr@jaist.ac.jp>"
+'zero-characters-encoded-word-hack)
+
+(encode
+"From: (((((((((((((((((((((((((((((((((((((((((((((((((((((($B$"(B)))))))))))))))))))))))))))))))))))))))))))))))))))))) <akr@jaist.ac.jp>"
+"From:\r
+ ((((((((((((((((((((((((((((((((((((((((((((((((((((((=?ISO-2022-JP?B?GyhC?=\r
+ =?ISO-2022-JP?B?GyRCJCIbKEI=?=\r
+ =?ISO-2022-JP?B?GyhC?=))))))))))))))))))))))))))))))))))))))))))))))))))))))\r
+ <akr@jaist.ac.jp>"
+'zero-characters-encoded-word-hack)
+
+(encode
+"From: ((((((((((((((((((((((((((((((((((((((((((($B$"(B))))))))))))))))))))))))))))))))))))))))))) <akr@jaist.ac.jp>"
+"From:\r
+ ((((((((((((((((((((((((((((((((((((((((((((((((((((((=?ISO-2022-JP?B?GyhC?=\r
+ =?ISO-2022-JP?B?GyRCJCIbKEI=?=\r
+ =?ISO-2022-JP?B?GyhC?=))))))))))))))))))))))))))))))))))))))))))))))))))))))\r
+ <akr@jaist.ac.jp>"
+'zero-characters-encoded-word-hack)
+
+(encode
+"From: ((((((((((((((((((((((((((((((((((((((((((((((((((((((($B$"(B))))))))))))))))))))))))))))))))))))))))))))))))))))))) <akr@jaist.ac.jp>"
+"From:\r
+ ((((((((((((((((((((((((((((((((((((((((((((((((((((((=?ISO-2022-JP?B?GyhC?=\r
+ =?ISO-2022-JP?B?GyhC?=(=?ISO-2022-JP?B?GyRCJCIbKEI=?=)=?ISO-2022-JP?B?GyhC?=\r
+ =?ISO-2022-JP?B?GyhC?=))))))))))))))))))))))))))))))))))))))))))))))))))))))\r
+ <akr@jaist.ac.jp>"
+'zero-characters-encoded-word-hack)
+
+(encode
+"From: (((((((((((((((((((((((((((((((((((((((((((((((((((((((($B$"(B)))))))))))))))))))))))))))))))))))))))))))))))))))))))) <akr@jaist.ac.jp>"
+"From:\r
+ ((((((((((((((((((((((((((((((((((((((((((((((((((((((=?ISO-2022-JP?B?GyhC?=\r
+ =?ISO-2022-JP?B?GyhC?=((=?ISO-2022-JP?B?GyRCJCIbKEI=?=\r
+ =?ISO-2022-JP?B?GyhC?=))))))))))))))))))))))))))))))))=?ISO-2022-JP?B?GyhC?=\r
+ =?ISO-2022-JP?B?GyhC?=))))))))))))))))))))))))\r
+ <akr@jaist.ac.jp>"
+'zero-characters-encoded-word-hack)
+
+(encode
+"From: ()($B$"(B)() <akr@jaist.ac.jp>"
+"From: ()(=?ISO-2022-JP?B?GyRCJCIbKEI=?=)() <akr@jaist.ac.jp>")
+
+(encode
+"From: ($B$"(B)()()()()()()()()()()()()()()()()()()() <akr@jaist.ac.jp>"
+"From: (=?ISO-2022-JP?B?GyRCJCIbKEI=?=)()()()()()()()()()()()()()()()()()()()\r
+  <akr@jaist.ac.jp>")
+
+(encode
+"From: ($B$"(B)()()()()()()()()()()()()()()()()()()()()()() <akr@jaist.ac.jp>"
+"From:\r
+ (=?ISO-2022-JP?B?GyRCJCIbKEI=?=)()()()()()()()()()()()()()()()()()()()()()()\r
+  <akr@jaist.ac.jp>")
+
+(encode
+"From: ($B$"(B)()()()()()()()()()()()()()()()()()()()()()()() <akr@jaist.ac.jp>"
+"From: (=?ISO-2022-JP?B?GyRCJCIbKEI=?=\r
+ =?ISO-2022-JP?B?GyhC?=)()()()()()()()()()()()()()()()()()()()()()()()\r
+  <akr@jaist.ac.jp>"
+'zero-characters-encoded-word-hack)
+
+(encode
+"From: ($B$"(B)()()()()()()()()()()()()()()()()()()()()()()()()()()() <akr@jaist.ac.jp>"
+"From: (=?ISO-2022-JP?B?GyRCJCIbKEI=?=\r
+ =?ISO-2022-JP?B?GyhC?=)()()()()()()()()()()()()()()()(=?ISO-2022-JP?B?GyhC?=\r
+ =?ISO-2022-JP?B?GyhC?=)()()()()()()()()()()() <akr@jaist.ac.jp>"
+'zero-characters-encoded-word-hack)
+
+(encode
+"To: l@d ($B$"(B aaa)($B$"(B)"
+"To: l@d (=?ISO-2022-JP?B?GyRCJCIbKEI=?= aaa)(=?ISO-2022-JP?B?GyRCJCIbKEI=?=)")
+
+(encode
+"To: l@d ($B$"(B aaaa)($B$"(B)"
+"To: l@d (=?ISO-2022-JP?B?GyRCJCIbKEI=?=\r
+ aaaa)(=?ISO-2022-JP?B?GyRCJCIbKEI=?=)")
+
+(encode
+"To: l@d ($B$"(B aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa)($B$"(B)"
+"To: l@d (=?ISO-2022-JP?B?GyRCJCIbKEI=?=\r
+ aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa)(=?ISO-2022-JP?B?GyRCJCIbKEI=?=)")
+
+(encode
+"To: l@d ($B$"(B aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa)($B$"(B)"
+"To: l@d (=?ISO-2022-JP?B?GyRCJCIbKEIgYWFhYWFhYWFhYWFhYWFhYWFhYWFhYWFhYWE=?=\r
+ =?US-ASCII?Q?aaaaaaaaaaaaaaaaaa?=)(=?ISO-2022-JP?B?GyRCJCIbKEI=?=)"
+'encode-long-ascii-string-for-fold)
+
+(encode
+"To: l@d ($B$"(B aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa()$B$"(B)"
+"To: l@d (=?ISO-2022-JP?B?GyRCJCIbKEIgYWFhYWFhYWFhYWFhYWFhYWFhYWFhYWFhYWE=?=\r
+ =?US-ASCII?Q?aaaaaaaaaaaaaaaaaa?=()=?ISO-2022-JP?B?GyRCJCIbKEI=?=)"
+'encode-long-ascii-string-for-fold)
+
+(encode
+"To: l@d ($B$"(B aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa $B$"(B)($B$"(B)"
+"To: l@d (=?ISO-2022-JP?B?GyRCJCIbKEI=?= aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa\r
+ =?ISO-2022-JP?B?GyRCJCIbKEI=?=)(=?ISO-2022-JP?B?GyRCJCIbKEI=?=)")
+
+(encode
+"To: l@d ($B$"(B aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa $B$"(B)($B$"(B)"
+"To: l@d (=?ISO-2022-JP?B?GyRCJCIbKEI=?=\r
+ aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa\r
+ =?ISO-2022-JP?B?GyRCJCIbKEI=?=)(=?ISO-2022-JP?B?GyRCJCIbKEI=?=)")
+
+;----------------------------------------------------------------------------
+
+;;; Section 6: Encoding melancholic inputs.
+
+(encode
+"From: akr@jaist.ac.jp ($B$"(B($B$$(B)$B$&(B)"
+"From: akr@jaist.ac.jp\r
+ (=?ISO-2022-JP?B?GyRCJCIbKEI=?=(=?ISO-2022-JP?B?GyRCJCQbKEI=?=)=?ISO-2022-JP?B?GyRCJCYbKEI=?=)"
+'ignore-76bytes-limit)
+
+(encode
+"From: akr@jaist.ac.jp ($B$"(B($B$$(B)$B$&(B)"
+"From: akr@jaist.ac.jp (=?ISO-2022-JP?B?GyRCJCIbKEI=?=\r
+ =?ISO-2022-JP?B?GyhC?=(=?ISO-2022-JP?B?GyRCJCQbKEI=?=\r
+ =?ISO-2022-JP?B?GyhC?=)=?ISO-2022-JP?B?GyRCJCYbKEI=?=)"
+'zero-characters-encoded-word-hack)
+
+(encode
+"From: $B$"(B($B$"(B) <akr@jaist.ac.jp>"
+"From: =?ISO-2022-JP?B?GyRCJCIbKEIoGyRCJCIbKEIp?= <akr@jaist.ac.jp>"
+'encode-sticked-comment-as-atom)
+
+(encode
+"From: $B$"(B($B$"(B) <akr@jaist.ac.jp>"
+"From: =?ISO-2022-JP?B?GyRCJCIbKEI=?=(=?ISO-2022-JP?B?GyRCJCIbKEI=?=)\r
+ <akr@jaist.ac.jp>"
+'permit-sticked-comment)
+
+(encode
+"From: $B$"(B($B$"(B) <akr@jaist.ac.jp>"
+"From: =?ISO-2022-JP?B?GyRCJCIbKEI=?= (=?ISO-2022-JP?B?GyRCJCIbKEI=?=)\r
+ <akr@jaist.ac.jp>"
+'separate-sticked-comment)
+
+(encode
+"To: $B$"(B<akr@jaist.ac.jp>"
+"To: =?ISO-2022-JP?B?GyRCJCIbKEI=?=<akr@jaist.ac.jp>"
+'permit-sticked-special)
+
+(encode
+"To: $B$"(B<akr@jaist.ac.jp>"
+"To: =?ISO-2022-JP?B?GyRCJCIbKEI=?= <akr@jaist.ac.jp>"
+'separate-sticked-special)
+
+(encode
+"To: <akr@jaist.ac.jp>,$B$"(B<akr@jaist.ac.jp>"
+"To: <akr@jaist.ac.jp>,=?ISO-2022-JP?B?GyRCJCIbKEI=?=<akr@jaist.ac.jp>"
+'permit-sticked-special)
+
+(encode
+"To: <akr@jaist.ac.jp>,$B$"(B<akr@jaist.ac.jp>"
+"To: <akr@jaist.ac.jp>, =?ISO-2022-JP?B?GyRCJCIbKEI=?= <akr@jaist.ac.jp>"
+'separate-sticked-special)
+
+(encode
+"To: akr@jaist.ac.jp,$B$"(B<akr@jaist.ac.jp>"
+"To: akr@jaist.ac.jp,=?ISO-2022-JP?B?GyRCJCIbKEI=?=<akr@jaist.ac.jp>"
+'permit-sticked-special)
+
+(encode
+"To: akr@jaist.ac.jp,$B$"(B<akr@jaist.ac.jp>"
+"To: akr@jaist.ac.jp, =?ISO-2022-JP?B?GyRCJCIbKEI=?= <akr@jaist.ac.jp>"
+'separate-sticked-special)
+
+(encode
+"To: $B$"(B:akr@jaist.ac.jp;"
+"To: =?ISO-2022-JP?B?GyRCJCIbKEI=?=:akr@jaist.ac.jp;"
+'permit-sticked-special)
+
+(encode
+"To: $B$"(B:akr@jaist.ac.jp;"
+"To: =?ISO-2022-JP?B?GyRCJCIbKEI=?= :akr@jaist.ac.jp;"
+'separate-sticked-special)
+
+(encode
+"To: $B$"(B:$B$$(B<akr@jaist.ac.jp>;"
+"To: =?ISO-2022-JP?B?GyRCJCIbKEI=?=:=?ISO-2022-JP?B?GyRCJCQbKEI=?=<akr@jaist.ac.jp>;"
+'ignore-76bytes-limit 'permit-sticked-special)
+
+(encode
+"To: $B$"(B:$B$$(B<akr@jaist.ac.jp>;"
+"To: =?ISO-2022-JP?B?GyRCJCIbKEI=?=:=?ISO-2022-JP?B?GyRCJCQbKEI=?=\r
+ =?ISO-2022-JP?B?GyhC?=<akr@jaist.ac.jp>;"
+'zero-characters-encoded-word-hack 'permit-sticked-special)
+
+(encode
+"To: $B$"(B:$B$$(B<akr@jaist.ac.jp>;"
+"To: =?ISO-2022-JP?B?GyRCJCIbKEI=?= : =?ISO-2022-JP?B?GyRCJCQbKEI=?=\r
+ <akr@jaist.ac.jp>;"
+'separate-sticked-special)
+
+(encode
+"To: $B$"(B:$B$$(B<foo@bar>,$B$&(B<foo@bar>;,$B$((B<foo@bar>"
+"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>"
+'ignore-76bytes-limit 'permit-sticked-special)
+
+(encode
+"To: $B$"(B:$B$$(B<foo@bar>,$B$&(B<foo@bar>;,$B$((B<foo@bar>"
+"To: =?ISO-2022-JP?B?GyRCJCIbKEI=?=:=?ISO-2022-JP?B?GyRCJCQbKEI=?=\r
+ =?ISO-2022-JP?B?GyhC?=<foo@bar>,=?ISO-2022-JP?B?GyRCJCYbKEI=?=\r
+ =?ISO-2022-JP?B?GyhC?=<foo@bar>;,=?ISO-2022-JP?B?GyRCJCgbKEI=?=<foo@bar>"
+'zero-characters-encoded-word-hack 'permit-sticked-special)
+
+(encode
+"To: $B$"(B:$B$$(B<foo@bar>,$B$&(B<foo@bar>;,$B$((B<foo@bar>"
+"To: =?ISO-2022-JP?B?GyRCJCIbKEI=?= : =?ISO-2022-JP?B?GyRCJCQbKEI=?=\r
+ <foo@bar>, =?ISO-2022-JP?B?GyRCJCYbKEI=?= <foo@bar>;,\r
+ =?ISO-2022-JP?B?GyRCJCgbKEI=?= <foo@bar>"
+'separate-sticked-special)
+
+;;; Section 7: Using quoted-encoded-words.
+;;
+;; quoted-encoded-word $BI=8=(B
+;; 
+;; RFC2047 $B$N%G%3!<%@$O@x:_E*$K(B($B%G%3!<%I7k2L$G$J$/(B) encoded-word $B$=$N$b$N$r(B
+;; $B=PNO$7$J$1$l$P$J$i$J$$$3$H$,$"$k!#(B
+;;
+;; 1. $BCN$i$J$$(B charset $B$b$7$/$O(B encoding $B$,;XDj$5$l$F$$$?$H$-!#(B
+;;  =?unknown-charset?known-encoding?some-encoded-text?=
+;;  =?known-charset?unknown-encoding?some-encoded-text?=
+;;  =?unknown-charset?unknown-encoding?some-encoded-text?=
+;;
+;; 2. $B%G%3!<%I$G$-$F$bFbMF$,7uF]$9$.$k$H$-!#(B
+;;  Non ASCII $B3HD%(B RFC822 $B$NCf$K(B =?US-ASCII?Q?=0D=0A=0D=0A?= $B$N%G%3!<%I(B
+;; $B7k2L$rKd$a9~$`$N$O4m81$9$.$k!#(B
+;;
+;; $B$^$?!"%G%3!<%@$O(B encoded-word $B$N$h$&$K$_$($k%G%3!<%I7k2L$r=PNO$7$J$1(B
+;; $B$l$P$J$i$J$$$3$H$b$"$k!#(B
+;;
+;;  =?US-ASCII?Q?=3D=3FUS-ASCII=3FQ=3Ftext=3F=3D?=
+;;
+;; $B%G%3!<%@$,C1$J$kJ8;zNs$r=PNO$9$k>l9g!"C1=c$K$d$k$H(B encoded-word $B$=$N$b$N$H(B
+;; encoded-word $B$N$h$&$K$_$($kJ8;zNs$r6hJL$G$-$J$$!#(B
+;; $B$3$3$G$OJ8;zNsCf$G$=$l$i$r3N<B$K6hJL$7$FI=8=$9$kJ}K!$r<($9!#(B
+;;
+;; rule 1: $BJ8;zNsCf$G(B =?charset?encoding?text?= $B$H$$$&%Q%?!<%s$K(B
+;;  $B%^%C%A$7$J$$ItJ,$O$=$NItJ,$N$^$^$NFbMF$rI=$9!#(B
+;; 
+;; rule 2: $BJ8;zNsCf$G(B =?charset?encoding?text?= $B$H$$$&%Q%?!<%s$K(B
+;;  $B%^%C%A$9$kItJ,$O(B charset $B$N@hF,$K(B + $B$,$$$/$DIU$$$F$$$k$+$GFbMF$N(B
+;;  $B2r<a$rJQ$($k!#(B
+;;
+;;  $B6v?t$N>l9g(B(0, 2, 4, ...): charset $B$N@hF,$N(B + $B$N?t$rH>J,$K$7$?J8;zNs(B
+;;  $B4q?t$N>l9g(B(1, 3, 5, ...): charset $B$N@hF,$N(B + $B$N?t$rH>J,(B($B>.?tE@0J2<(B
+;;   $B@Z<N$F(B)$B$K$7$F!"$=$l$r(B encoded-word $B$H;W$C$F%G%3!<%I$7$?J8;zNs!#(B
+;;
+;; NOTE: + $B$r(B quoted-encoded-word $BI=8=$N(B quote $BJ8;z$H8F$V!#(B
+;;
+;; NOTE: $B8=;~E@(B(1998/07/19)$B$G(B IANA $B$K$O(B + $B$r4^$`(B charset $B$O(B
+;;  $BEPO?$5$l$F$$$J$$$N$G!"$=$l$i$N(B charset $B$r;H$C$?(B
+;;  encoded-word $B$rI=8=$9$k$K$O(B + $B$r(B 1$B$D$D$1$k$3$H$K$J$k!#(B
+;;
+;;  =?US-ASCII?Q?abcdef?= $B$H$$$&(Bencoded-word : =?+US-ASCII?Q?abcdef?=
+;;
+;;  =?US-ASCII?Q?abcdef?= $B$H$$$&J8;zNs(B	    : =?US-ASCII?Q?abcdef?=
+;;  =?+US-ASCII?Q?abcdef?= $B$H$$$&J8;zNs(B	    : =?++US-ASCII?Q?abcdef?=
+;;  =?++US-ASCII?Q?abcdef?= $B$H$$$&J8;zNs(B     : =?++++US-ASCII?Q?abcdef?=
+;;  =?+++US-ASCII?Q?abcdef?= $B$H$$$&J8;zNs(B    : =?++++++US-ASCII?Q?abcdef?=
+;;  =?US-ASCII+?Q?abcdef?= $B$H$$$&J8;zNs(B      : =?US-ASCII+?Q?abcdef?=
+;;  =?U+S-ASCII?Q?abcdef?= $B$H$$$&J8;zNs(B      : =?U+S-ASCII?Q?abcdef?=
+;;
+;; NOTE: encoded-word $B$K8+$($kJ8;zNs$G(B + $B$,G\A}$5$l$k$N$O(B charset $B$N(B
+;;  $B@hF,$@$1$G$"$j!"(Bencoding $B$d(B encoded-text $B$O$?$H$((B + $B$,F~$C$F$$$F$b(B
+;;  $BJQ2=$7$J$$!#$^$?!"(Bcharset $BCf$G$b(B $B@hF,0J30$N(B + $B$OJQ2=$7$J$$!#(B
+;;
+;; rule 3: $BJ8;zNsA4BN$NFbMF$O!"(Brule 1 $B$H(B rule 2 $B$G2r<a$7$?3FItJ,$N(B
+;;   $BJ8;zNs$rC1=c$KO"7k$7$?J8;zNs$H$9$k!#(B
+;;
+;; NOTE: RFC2047 $B$G$O(B encoded-word $B$,6uGr$G6h@Z$i$l$J$1$l$P$J$i$J$$$H$+!"(B
+;;  encoded-word $B$O(B 75bytes $B0J2<$G$J$1$l$P$J$i$J$$$H$+!"(B
+;;  encoded-word $B$,4^$^$l$k9T$O(B 76bytes $B0J2<$G$J$1$l$P$J$i$J$$$J$I$H$$$&(B
+;;  $B5,Ls$,$"$k$,!"(Bquoted-encoded-word $BI=8=$G$O$=$l$i$O:NMQ$7$J$$!#(B
+;;  $BC1=c$K(B encoded-word $BFbIt$NJ8K!$@$1$rMxMQ$9$k!#(B
+;;  ($BK\<AE*$K$O0[$J$kJ8K!$r:NMQ$9$k$3$H$b2DG=$G$"$k$,!"(BRFC2047 $B$K7I0U$r(B
+;;  $BI=$7$F(B encoded-word $B$NJ8K!$r:NMQ$9$k!#(B)
+;;
+;; NOTE: quoted-encoded-word $BI=8=$7$?J8;zNs$NO"7k$O0BA4$G$O$J$$!#(B
+;;  =?+US-ASCII?Q?ab $B$H(B cd?= $B$H$$$&(B quoted-encoded-word $BI=8=$7$?J8;zNs$O(B
+;;  $B$=$l$>$l$=$NJ8;zNs$=$N$b$N$rI=8=$9$k$,!"$=$l$i$rO"7k$7$?J8;zNs(B
+;;  =?+US-ASCII?Q?abcd?= $B$O(B abcd $B$H$$$&J8;zNs$rI=8=$9$k$3$H$K$J$j!"(B
+;;  $B$=$l$>$l$NFbMF$NO"7k$H$O$J$i$J$$!#(B
+;;
+;;  $B$3$l$O$H$/$K(B Non ASCII $B3HD%(B RFC822 $B$NCf$K(B quoted-encoded-word $BI=8=$r(B
+;;  $BKd$a9~$`$H$-$K5$$rIU$1$J$1$l$P$J$i$J$$!#(B($BKd$a9~$s$@7k2L$O@5$7$$(B
+;;  quoted-encoded-word $BI=8=$H$O$J$i$J$$$+$bCN$l$J$$!#(B)
+
+(decode
+"Subject: =?Unknown-Charset?B?gqA=?="
+"Subject: =?+Unknown-Charset?B?gqA=?="
+'quoted-encoded-word)
+
+(decode
+"Subject: =?US-ASCII?G?H4sIACqUszUAA8tIzcnJBwCGphA2BQAAAA==?="
+"Subject: =?+US-ASCII?G?H4sIACqUszUAA8tIzcnJBwCGphA2BQAAAA==?="
+'quoted-encoded-word)
+
+(decode
+"Subject: =?US-ASCII?Unknown-Encoding?H4sIAGOUszUAAwtyczYyMDEHAEpvqpIHAAAA?="
+"Subject: =?+US-ASCII?Unknown-Encoding?H4sIAGOUszUAAwtyczYyMDEHAEpvqpIHAAAA?="
+'quoted-encoded-word)
+
+(decode
+"Subject: =?ISO-2022-JP?G?H4sIAGiTszUAA5NWcVIBAhMtaQ0nAGLSaeEMAAAA?=\r
+ =?ISO-2022-JP?G?H4sIAH6TszUAA5NWcVIxV3FTyVbxldZwAgAuIikKDgAAAA==?="
+"Subject: =?+ISO-2022-JP?G?H4sIAGiTszUAA5NWcVIBAhMtaQ0nAGLSaeEMAAAA?==?+ISO-2022-JP?G?H4sIAH6TszUAA5NWcVIxV3FTyVbxldZwAgAuIikKDgAAAA==?="
+'quoted-encoded-word)
+
+(decode
+"Subject: =?Unknown-Charset?B?gqA=?= =?Unknown-Charset?B?gqA=?="
+"Subject: =?+Unknown-Charset?B?gqA=?==?+Unknown-Charset?B?gqA=?="
+'quoted-encoded-word)
+
+(decode
+"Subject: =?Unknown-Charset?B?gqA=?=  =?Unknown-Charset?B?gqA=?="
+"Subject: =?+Unknown-Charset?B?gqA=?==?+Unknown-Charset?B?gqA=?="
+'quoted-encoded-word)
+
+(decode
+"Subject: =?Unknown-Charset?B?gqA=?=\r
+ =?Unknown-Charset?B?gqA=?="
+"Subject: =?+Unknown-Charset?B?gqA=?==?+Unknown-Charset?B?gqA=?="
+'quoted-encoded-word)
+
+(decode
+"Subject: =?Unknown-Charset?B?gqA=?=\r
+	=?Unknown-Charset?B?gqA=?="
+"Subject: =?+Unknown-Charset?B?gqA=?==?+Unknown-Charset?B?gqA=?="
+'quoted-encoded-word)
+
+(decode
+"Subject: a=?Unknown-Charset?B?gqA=?="
+"Subject: a=?Unknown-Charset?B?gqA=?="
+'quoted-encoded-word)
+
+(decode
+"Subject: =?Unknown-Charset?B?gqA=?=b"
+"Subject: =?Unknown-Charset?B?gqA=?=b"
+'quoted-encoded-word)
+
+(decode
+"Subject: a=?Unknown-Charset?B?gqA=?=b"
+"Subject: a=?Unknown-Charset?B?gqA=?=b"
+'quoted-encoded-word)
+
 (decode
-"Subject: =?ISO-2022-JP-2?B?Gy5GG05DGyRCNFg/dBsoQg==?="
-"Subject: .FNC$B4X?t(B")*B
+"Subject: a =?Unknown-Charset?B?gqA=?= b"
+"Subject: a =?+Unknown-Charset?B?gqA=?= b"
+'quoted-encoded-word)
 
 (decode
-"Subject: =?ISO-8859-7?Q?=C3?= =?ISO-2022-JP?B?GyRCNFg/dBsoQg==?="
-"Subject: .FNC$B4X?t(B")*B
+"Subject: =?ISO-2022-JP?B?DQoNCg==?="
+"Subject: =?+US-ASCII?Q?=0D=0A=0D=0A?="
+'quoted-encoded-word)
+
+(decode
+"Subject: =?US-ASCII?Q?a=0D=0A_b?="
+"Subject: a b"
+'quoted-encoded-word)
+
+(decode
+"Subject: =?US-ASCII?Q?a=0D=0Ab?="
+"Subject: a=?+US-ASCII?Q?=0D=0A?=b"
+'quoted-encoded-word)
+
+;;;end-test
+
+(report)
 
 ;----------------------------------------------------------------------------