On 06/08/09 08:35, Robert Dailey wrote:
> Hey guys,
>
> 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]+' )
>
> This works, but I was hoping for something a bit cleaner. I'm having
> to create a special case portion of the regex for the last of the 4
> numbers simply because it doesn't end with a comma like the first 3.
> Is there a better, more compact, way to write this regex?
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>
Since there cannot be more than one "end of string" you can try this
expression:
re.compile( r'FILEVERSION (?:[0-9]+(,|$)){4}' )
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