Re: [Boost-users] Boost: Regular Expression question/bug?

I'll give that a try, thanks. Just cannot see why is it that .{1,3} doesn't have the same effect given the only difference is the exclusion of a 'b'. Thanks, Derrick 2007/2/15, Darren Garvey :

Hi Derrick,

On 15/02/07, Derrick Schommer wrote:

...

Hi,

I'm trying to understand if a regular expression I've designed is working correctly. It seems that I can make the regular expression match work "off by one" character in certain circumstances. For instance:

The pattern: ".{1,3}" finds 1 to 3 characters, however

The pattern: ".[^b]{1,3}" finds 1 to 4 characters...? <dice>

The reason the second patter finds 1-4 chars is because you've asked for '.' (any character) followed by [^b]{1,3} (1-3 of any character except b). If you want 1-3 of anything except b, then just "[^b]{1,3}" is all you need.

hth, Darren

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