Thanks. I've got it reading in a file and checking each line against a 
regular expression.

How would I go about taking individual sections of a line?
i.e. if the word 'example:' appears on a line then it takes that and a 
few characters before or after it (it will be something specific its 
just the question is in general here) so for
blah blah blah example: twenty blah blah
it returns me 'example: twenty'

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