Re: How do I write a regex for 'does not contain' a string.

    /^(?:[^f]+|f(?!oo))*$/;   # Matches strings not containing 'foo'.

    /^(?:(?!PATTERN).)*$/;    # Matches strings not containing PATTERN
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The top one is reasonably fast, the bottom one is slow, but works for all patterns.

Abigail

Comment on Re: How do I write a regex for 'does not contain' a string. Download Code

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Re: Re: How do I write a regex for 'does not contain' a string. by IraTarball (Monk) on Aug 09, 2002 at 17:03 UTC
Excelent! Thank you. I knew there must be a way to do this. Dispite the very valid points by fruiture and arturo about a better way to solve my particular problem, it was bugging me that I couldn't think of a way to do this. With much thanks, Ira "So... What do all these little arrows mean?" ~unknown	[reply]