A friend I work with was asking me today how to match HTML comments using regular expressions. It was an interesting example of some of the pitfalls and design that needs to go into regular expression code.

HTML comments are marked out by <!– and –>, for those who don’t know. For our examples we’ll use the code below, and change the patterns and subjects defined by $pattern and $subject respectively. This is written in PHP, but the same patterns are true for any Perl Compatible regular expression. Continue reading “Capturing Comments in HTML” →