Nobody wrote:
On Thu, 06 Aug 2009 08:35:57 -0700, Robert Dailey wrote:
I'm creating a python script that is going to try to search a text
file for any text that matches my regular expression. The thing it is
looking for is:
FILEVERSION #,#,#,#
The # symbol represents any number that can be any length 1 or
greater. Example:
FILEVERSION 1,45,10082,3
The regex should only match the exact above. So far here's what I have
come up with:
re.compile( r'FILEVERSION (?:[0-9]+\,){3}[0-9]+' )
[0-9]+ allows any number of leading zeros, which is sometimes undesirable.
Using:
(0|[1-9][0-9]*)
is more robust.
You make a good point about possibly being undesirable, but I question
the assertion that your solution is /more robust/. If the OP
wants/needs to match numbers even with leading zeroes your /more robust/
version fails.
~Ethan~
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