On Mon, Jul 31, 2006 at 12:10:26AM +0100, Nicklas Persson wrote:
> Hi
>
> I'm trying to write a pattern that catches every occurrence of a word as long
> as
> that word is not inside an html tag.
>
> e.g I want to catch `Hello World` but not <img title="Hello World" />
>
> The closest I got was
>
> (?!<.*?)Hello World(?![^<>]*?>)
The first part, (?!<.*?), isn't actually doing anything for you there.
You're basically saying: whatever comes next can't start with <, and must
be Hello World. Hello World already doesn't start with <, so the negative
look-ahead is redundant.
> which works OK in BBEdit search, but, and here's where I apologise for
> possibly
> taking this question off topic - not in a PHP page
> (where it looks like this: $pattern = "'(?!{.*?)$string(?![^{}]*?})'si"; )
> where I'm using it to highlight certain words.
>
> Does anyone with a lot more experience with regular expressions know the (more
> than likely obvious) way to make this work in PHP too?
BBEdit and PHP both use Perl-Compatible Regular Expressions, so I don't
know why it's not working for you in PHP. Perhaps you could show a little
more of the code you're using?
Ronald
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