regex question

[richardko]

hi,
i am trying to understand this regex expression and i just want to clarify with the fellow users if my interpretation is right:

(?!(?:#|javascript\s*:))

the first "?" from the left means this is optional. the "!" after that means anything that doesnt match. The code inside the is optional with the alternatives ... "#" and "javascript".
So anything that doesnt match "#" or "javascript" is matched with those options being optional. I dont understand the use of colon ":" inside the second bracket though.

any idea?

 

[sleipnir214]

Is this an ereg regex or a preg regex?



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[richardko]

its preg regex

 

[sleipnir214]

According to

http://us.php.net/manual/en/reference.pcre.pattern.syntax.php

, the "?:" pattern tells the regular expression engine to match without capturing



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