Regular expressions pattern options
In regular expressions there are some constructs that influence the way a pattern is matched:
- Non-greedy
?
- Non-capturing
(?:pattern)
- Positive lookahead
(?=pattern)
- Negative lookahead
(?!pattern)
- Positive lookbehind
(?<=pattern)
- Negative lookbehind
(?<!pattern)
- Testing regular expressions


Posted by: Z24 | Sun, Dec 23 2007 |
Category: /programming |
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Tagged as: perl, programming, regex, visual basic