Order of regex's

[Anon]

I'm writing a script to translate "bbCode". Here's the relevant segment.

// Url's and email's
$text = eregi_replace("[url=([^][ ])]([^[])[/url]", "<a href=\"\1\">\2</a>", $text);
// Must be first b/c of url parsing
$text = eregi_replace("([a-z]+://[^ \n\r\t])", "<a href=\"\1\">\1</a>", $text);
$text = eregi_replace("[email]([^{[ ]})[/email]", "<a href=\"mailto:\1\">\1</a>", $text);

You'll notice the comment about one for xxx needing to be first. Otherwise the one that just parses xxx://xxx picks up the url and messes it up. However, even now that I've put it first, it still acts as though the xxx://xxx one got it first. I input this:

haha

..and it gives me this:

[url=<a href="http://foo.com]haha[/url]">http://foo.com]haha[/url]</a>

Any help is greatly appreciated.

• Linus

[Anon]

I just solved the problem when I took another look at the regex article here at PHPBuilder. The ']' needs to come first in a character class, and unescaped at that. Odd, but it works so I'll leave it alone. 🙂