I am trying to match proxy patterns using the following regex:
((?:\d{1,3}\.){3}\d{1,3}):(\d+)
It is working well thus far, but is not matching the following: 218.25.249.186:80
Any ideas? Thanks!
2 Answers
This match in python regex
>>> import re
>>> ip = '218.25.249.186:80'
>>> match = re.match(r'((?:\d{1,3}\.){3}\d{1,3}):(\d+)', ip)
>>> print match
<_sre.SRE_Match object at 0xb755da88>
Could be:
(\d{1,3}\.){3}\d{1,3}:(\d+)
Drop the leading ':' or change it to ':?'. your reference string does not start with a : nor does a colon appear before the numeric expression.
answered Apr 12, 2013 at 19:17
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The
(?: ... )clustering notation does not match literal characters, but simply allows for subexpressions without capturing back-references. Commented Apr 12, 2013 at 21:30
(?: ... )or{n}notation as expected.