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author | Fred Drake <fdrake@acm.org> | 2000-04-07 16:09:59 (GMT) |
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committer | Fred Drake <fdrake@acm.org> | 2000-04-07 16:09:59 (GMT) |
commit | c2c46c3751e245f1df03bf282a9088a19a0a652f (patch) | |
tree | 17683786b6611030a61603f419fe324a4289b1e5 | |
parent | 037649eaa675e5c11ce51bd5e2be116710d336b0 (diff) | |
download | cpython-c2c46c3751e245f1df03bf282a9088a19a0a652f.zip cpython-c2c46c3751e245f1df03bf282a9088a19a0a652f.tar.gz cpython-c2c46c3751e245f1df03bf282a9088a19a0a652f.tar.bz2 |
New example from Skip Montanaro <skip@mojam.com>.
-rw-r--r-- | Doc/lib/libmultifile.tex | 52 |
1 files changed, 29 insertions, 23 deletions
diff --git a/Doc/lib/libmultifile.tex b/Doc/lib/libmultifile.tex index cf138ac..2fec42c 100644 --- a/Doc/lib/libmultifile.tex +++ b/Doc/lib/libmultifile.tex @@ -132,29 +132,35 @@ True if the last end-of-file was for an end-of-message marker. \subsection{\class{MultiFile} Example \label{multifile-example}} - -% This is almost unreadable; should be re-written when someone gets time. +\sectionauthor{Skip Montanaro}{skip@mojam.org} \begin{verbatim} -fp = MultiFile(sys.stdin, 0) -fp.push(outer_boundary) -message1 = fp.readlines() -# We should now be either at real EOF or stopped on a message -# boundary. Re-enable the outer boundary. -fp.next() -# Read another message with the same delimiter -message2 = fp.readlines() -# Re-enable that delimiter again -fp.next() -# Now look for a message subpart with a different boundary -fp.push(inner_boundary) -sub_header = fp.readlines() -# If no exception has been thrown, we're looking at the start of -# the message subpart. Reset and grab the subpart -fp.next() -sub_body = fp.readlines() -# Got it. Now pop the inner boundary to re-enable the outer one. -fp.pop() -# Read to next outer boundary -message3 = fp.readlines() +import mimetools +import MultiFile +import StringIO + +def extract_mime_part_matching(stream, mimetype): + """Return the first element in a multipart MIME message on stream + matching mimetype.""" + + msg = mimetools.Message(stream) + msgtype = msg.gettype() + params = msg.getplist() + + data = StringIO.StringIO() + if msgtype[:10] == "multipart/": + + file = multifile.MultiFile(stream) + file.push(msg.getparam("boundary")) + while file.next(): + submsg = mimetools.Message(file) + try: + data = StringIO.StringIO() + mimetools.decode(file, data, submsg.getencoding()) + except ValueError: + continue + if submsg.gettype() == mimetype: + break + file.pop() + return data.getvalue() \end{verbatim} |