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enigmail  1.4.3
printprereleasesuffix.py
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00001 # ***** BEGIN LICENSE BLOCK *****
00002 # Version: MPL 1.1/GPL 2.0/LGPL 2.1
00003 #
00004 # The contents of this file are subject to the Mozilla Public License Version
00005 # 1.1 (the "License"); you may not use this file except in compliance with
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00009 # Software distributed under the License is distributed on an "AS IS" basis,
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00012 # License.
00013 #
00014 # The Original Code is Mozilla.
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00016 # The Initial Developer of the Original Code is
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00018 # Portions created by the Initial Developer are Copyright (C) 2009
00019 # the Initial Developer. All Rights Reserved.
00020 #
00021 # Contributor(s):
00022 #  Robert Strong <robert.bugzilla@gmail.com>
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00036 # ***** END LICENSE BLOCK *****
00037 
00038 # Prints the pre-release version suffix based on the version string
00039 #
00040 # Examples:
00041 # 2.1a3    > " 2.1 Alpha 3"
00042 # 2.1a3pre > ""
00043 # 3.2b4    > " 3.2 Beta 4"
00044 # 3.2b4pre > ""
00045 
00046 import sys
00047 import re
00048 
00049 def get_prerelease_suffix(version):
00050   """ Returns the prerelease suffix from the version string argument """
00051 
00052   def mfunc(m):
00053     return " %s %s %s" % (m.group('prefix'),
00054                          {'a': 'Alpha', 'b': 'Beta'}[m.group('c')],
00055                          m.group('suffix'))
00056   result, c = re.subn(r'^(?P<prefix>(\d+\.)*\d+)(?P<c>[ab])(?P<suffix>\d+)$',
00057                       mfunc, version)
00058   if c != 1:
00059     return ''
00060   return result
00061 
00062 if len(sys.argv) == 2:
00063   print get_prerelease_suffix(sys.argv[1])