regexp with fixed amount of bytes

[musicmaster]

I want to search a page with regexp for highlighted items (<i> around them). Now if I find one I also want to get 200 bytes before and 300 bytes after the highlighted item.

What is the best (fastest) way to implement this?

Thanks,

Wim

[musicmaster]

Just a little update. My working code goes as follows:

1. do a regexp for the "<i>([^>]*)<\i>"
2. for each found string, I then search (with strpos) for its position in the page
3. based on that position I can do a substr to get what I want

I would love to find a faster way to do this.

Thanks,

Wim