Re: regex problem

Dave Goodchild schrieb:

On 01/06/06, Merlin <ngroups@fastmail.fm> wrote:

Hi there, I do work on following regex: ^(.*)_a[0-9](.*).htm$ This should be valid for "test_a9393.htm", but not for "9393.htm" as ther is no leading _a infront of the number. Unfortunatelly this also works for the 9393.htm file. Can somebody give me a hint why the regex also is true for text that does not start with _a infront of the number? Thank you for any help, Merlin

Try this: ^(.*)(_a{1})(\d+).htm$ in your regex you are looking for any instance of _, a OR a sequence of numbers. I think this will search for zero or more characters, one instance of _a, then one or more numbers, then .htm. Hi,

unfortunatelly it does not work. But you are right my regex: ^(.*)_a[0-9](.*).htm$ seems to make an OR with _a OR numbers , but I would like to have an AND. Any other ideas? Merlin