> Thank you for your response. It was helpful to know that this isn't going > to be an easy fix. We're already using regexp-opt, which is supposed to > optimize and shrink the regex.
In that case I don't think there's much you can do (you may be able to tweak regexp-opt to reduce the compiled regexp size, but you'll just get a few percent further, which probably isn't of any use to you). > I can anticipate the regexes getting much much bigger, and I'm keen to > avoid having to dig into the guts of the regexp C code, so I think we're > going to figure out a way to do our regexing outside of Emacs. Looks like your best/only option. Of course you may also be able to do it all in Emacs by not using regexps. E.g. if your code looks anything like (re-search-forward (concat "foo" (regexp-opt mighty-big-list) "bar")) you may be able to use (while (and (re-search-forward (concat "foo\(.*\)bar")) (not (member (match-string 1) mighty-big-list)))) And of course, use a hash-table rather than a list. Stefan -- To UNSUBSCRIBE, email to [EMAIL PROTECTED] with a subject of "unsubscribe". Trouble? Contact [EMAIL PROTECTED]