mirror of
https://github.com/openvswitch/ovs
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c724bd674f
Perl is unfashionable and Python is more widely available and understood, so this commit converts one of the OVS uses of Perl into Python. Signed-off-by: Ben Pfaff <blp@ovn.org> Acked-by: Aaron Conole <aconole@redhat.com>
51 lines
1.1 KiB
Python
Executable File
51 lines
1.1 KiB
Python
Executable File
#!/usr/bin/env python
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import re
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import sys
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def lookup_uuid(uuids, match):
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return "<%s>" % uuids.setdefault(match.group(0), len(uuids))
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int_re = re.compile(r'\d+')
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def sort_set(match):
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s = match.group(0)
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uuids = sorted([int(x) for x in int_re.findall(s)])
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return '["set",[' + ','.join('["uuid","<%s>"]' % x for x in uuids) + ']]'
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u = '[0-9a-fA-F]'
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uuid_re = re.compile(r'%s{8}-%s{4}-%s{4}-%s{4}-%s{12}' % ((u,) * 5))
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set_re = re.compile(r'(\["set",\[(,?\["uuid","<\d+>"\])+\]\])')
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def filter_uuids(src, dst):
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uuids = {}
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def lf(match):
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return lookup_uuid(uuids, match)
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while True:
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line = src.readline()
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if not line:
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break
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line = uuid_re.sub(lf, line)
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# Sort sets like this:
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# [["uuid","<1>"],["uuid","<0>"]]
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# to look like this:
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# [["uuid","<0>"],["uuid","<1>"]]
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line = set_re.sub(sort_set, line)
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dst.write(line)
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if __name__ == '__main__':
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if len(sys.argv) > 1:
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for src in sys.argv[1:]:
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filter_uuids(open(src), sys.stdout)
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else:
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filter_uuids(sys.stdin, sys.stdout)
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