Lookaround assertions in mod_rewrite/mod_alias regex?

How can one use lookahead/lookbehind assertions in the regex for a
mod_rewrite RewriteRule, or mod_alias AliasMatch? Currently when I
attempt to use a question mark in my regex, as needed for lookarounds,
I get an internal server error for mod_rewrite, or a syntax error for
mod_alias.

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Re: Lookaround assertions in mod_rewrite/mod_alias

2009/9/2 John Martin :
> How can one use lookahead/lookbehind assertions in the regex for a
> mod_rewrite RewriteRule, or mod_alias AliasMatch? Currently when I
> attempt to use a question mark in my regex, as needed for lookarounds,
> I get an internal server error for mod_rewrite, or a syntax error for
> mod_alias.

But you're using Apache 2+?

Bob

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