in reply to Re^8: Regex match at the beginning or end of string
in thread Regex match at the beginning or end of string

Of course I know \w matches 8. That was the point of the example.

Then I'm sorry, but I still don't understand the point you are making?

Using one regex that matches both required components, to check if the string contains both components just doesn't make any sense. To me at least.

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  • Comment on Re^9: Regex match at the beginning or end of string

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Re^10: Regex match at the beginning or end of string
by JavaFan (Canon) on Feb 20, 2011 at 15:55 UTC
    The OP has several patterns he wants to match - in a non-overlapping way. In particular, he wants to find out if both matches follow each other directly. There's no reason to assume the patterns cannot (partially) overlap (which is where your suggestion breaks down). Using \w and \d are two simple patterns than can match in an overlapping way. Translated into the OPs problem "check if a word character is followed by a digit, or a digit followed by a word character". "A8", "8A" and "89" are all acceptable. "&8" isn't.
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