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New substitution to replace unauthorized white spaces in 'encoded-words'. (see rfc 2047 section 2)

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fixed #136
This commit is contained in:
Antoine Nguyen
2011-05-02 09:39:12 +02:00
parent 17ee13a9c9
commit f1a78e612c
1 changed files with 6 additions and 0 deletions
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lib/u2u_decode.py
+6
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@@ -10,18 +10,24 @@ sre = re.compile(r'\?=[ \t]+=\?')
# re pat for MIME encoded_word (without trailing spaces)
mre = re.compile(r'=\?[^?]*?\?[bq]\?[^? \t]*?\?=', re.I)
tre = re.compile('=\?.+\?=')
def decode_mime(m):
# substitute matching encoded_word with unicode equiv.
h = decode_header(m.group(0))
u = unicode(make_header(h))
return u
def clean_spaces(m):
return m.group(0).replace(" ", "=20")
def u2u_decode(s):
# utility function for (final) decoding of mime header
# note: resulting string is in one line (no \n within)
# note2: spaces between enc_words are stripped (see RFC2047)
s = ''.join(s.splitlines())
s = sre.sub('?==?', s)
s = tre.sub(clean_spaces, s)
u = mre.sub(decode_mime, s)
return u