Topic: Matching an Exact Length Line/String

[mrhenniger]

I am new to regular expressions but I hope to build some competance on the subject.  For now though I am just a newbie.

I am trying to create a regex were the haystack is expected to be small (only 10 characters or less), and a match is to be confirmed when the subject string fits the full length of the haystack.  Here is the regex I have created in PHP...

$number = preg_match("/^(N[CGLRSX]{0,1}[0-9]{1-3}[A-Z]{0,2})$/", $aCR);

When I provide the values "N1Z" for $aCR, I expect to get a value of 1 for $number, but instead I get 0.   Hmmmm....  What it looks straight forward, but obviously I am doing something wrong.   Can anyone point out the error of my ways?

Thanks in advance for any assistance you can provide.

Mike

[cags]

Your concept is actually right, but I think you made a typo. {1-3} should obviously be {1,3}. I believe {1-3} would match itself as a literal string so your $aCR would have to be something like "N1{1-3}Z" in order to match the pattern.

[mrhenniger]

That was it!  If it wasn't for all of my typos I would be a genius. 

Thanks.

Mike

[cags]

Wouldn't we all