[issue4491] email.Header.decode_header() doesn't work if encoded-word was separeted by CRLF

[Atsuo Ishimoto]

New submission from Atsuo Ishimoto <ishimoto at gembook.org>:

email.Header.decode_header() doesn't work if encoded-word was separeted
by CRLF. 

For exmaple, decode_header('=?iso-8859-1?q?hello?=\r\n world.') returns
[('=?iso-8859-1?q?hello?=\r\n world.', None)], not [('hello',
'iso-8859-1'), (' world.', None)].

This bug was caused by rev.54371, bug #1582282. I attached a patch to
fix problem and test-case.

----------
components: Library (Lib)
files: email.patch
keywords: patch
messages: 76755
nosy: ishimoto
severity: normal
status: open
title: email.Header.decode_header() doesn't work if encoded-word was separeted by CRLF
type: behavior
versions: Python 2.5, Python 2.6
Added file: http://bugs.python.org/file12196/email.patch

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