Issue #7892 has been reported by mrkn (Kenta Murata).

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Bug #7892: MIME encoding bug of NKF.nkf
https://bugs.ruby-lang.org/issues/7892

Author: mrkn (Kenta Murata)
Status: Open
Priority: Normal
Assignee: naruse (Yui NARUSE)
Category: ext
Target version: 2.0.0
ruby -v: ruby 2.0.0dev (2013-02-08 trunk 39161) [x86_64-darwin11.4.2]


NKF の MIME encoding の結果が 1.8 と 1.9/2.0 で異なってます。

# 1.8 の場合
$ /usr/bin/ruby -rnkf -ve "puts NKF.nkf('-jW -M --cp932', '「あああああああああああ by ああああああああああ」のレシピ')"
ruby 1.8.7 (2012-02-08 patchlevel 358) [universal-darwin11.0]
=?ISO-2022-JP?B?GyRCIVYkIiQiJCIkIiQiJCIkIiQiJCIkIiQiGyhC?= by
 =?ISO-2022-JP?B?GyRCJCIkIiQiJCIkIiQiJCIkIiQiJCIhVyROJWwlNyVUGyhC?=

# 1.9.3-p385 の場合
$ ruby -rnkf -ve "puts NKF.nkf('-jW -M --cp932', '「あああああああああああ by ああああああああああ」のレシピ')"
ruby 1.9.3p385 (2013-02-06 revision 39114) [x86_64-darwin11.4.2]
=?ISO-2022-JP?B?GyRCIVYkIiQiJCIkIiQiJCIkIiQiJCIkIiQiGyhC?= by
 =?US-ASCII?Q??=
 =?ISO-2022-JP?B?GyRCJCIkIiQiJCIkIiQiJCIkIiQiJCIhVyROJWwlNyVUGyhC?=

# 2.0.0-rc2 の場合
$ RBENV_VERSION=2.0.0-rc2 rbenv exec ruby -rnkf -ve "puts NKF.nkf('-jW -M --cp932', '「あああああああああああ by ああああああああああ」のレシピ')"
ruby 2.0.0dev (2013-02-08 trunk 39161) [x86_64-darwin11.4.2]
=?ISO-2022-JP?B?GyRCIVYkIiQiJCIkIiQiJCIkIiQiJCIkIiQiGyhC?= by
 =?US-ASCII?Q??=
 =?ISO-2022-JP?B?GyRCJCIkIiQiJCIkIiQiJCIkIiQiJCIhVyROJWwlNyVUGyhC?=



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