> I wanted to do (.+?([&?][pq]=([^&]+))?.*?)?$
> but it would never recognise the internal expression that would be the search.
These regexes have several issues, but the root cause of the problem with the
regex above is that the inner group (intended to capture the search terms) is
optional. Since the regex will successfully match even when the grouping is
excluded, it does just that.
As far as improving the full regex's efficiency, you could do:
<cfset qReferer =
REFindNoCase("^https?://([^/]+)/?([^?]+(?:[?&][pq]=([^&]+)|.)*)?$", referer, 1,
TRUE)>
Positions:
2 = Domain
3 = Relative URL excluding the leading slash ("referer string")
4 = Search term
On a related note, and as a shameless plug, check out my parseUri UDF for
splitting any URI:
http://badassery.blogspot.com/2007/01/parsing-uris-in-coldfusion.html
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