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qapi: Fix cgen() for Python older than 2.7

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A feature new in Python 2.7 crept into commit 77e703b: re.subn()'s
fifth argument.  Avoid that, use re.compile().

Reported-by: Laurent Desnogues <laurent.desnogues@gmail.com>
Signed-off-by: Markus Armbruster <armbru@redhat.com>
Reviewed-by: Eric Blake <eblake@redhat.com>
Tested-by: Laurent Desnogues <laurent.desnogues@gmail.com>
Message-id: 1441640755-23902-1-git-send-email-armbru@redhat.com
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
This commit is contained in:
Markus Armbruster 2015-09-07 17:45:55 +02:00 committed by Peter Maydell
parent a2aa09e181
commit 2752e5bedb
1 changed files with 3 additions and 1 deletions
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scripts/qapi.py
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@ -944,7 +944,9 @@ def cgen(code, **kwds):
raw = code % kwds
if indent_level:
indent = genindent(indent_level)
raw = re.subn("^.", indent + r'\g<0>', raw, 0, re.MULTILINE)
# re.subn() lacks flags support before Python 2.7, use re.compile()
raw = re.subn(re.compile("^.", re.MULTILINE),
indent + r'\g<0>', raw)
raw = raw[0]
return re.sub(re.escape(eatspace) + ' *', '', raw)