Nested text

When implementing multiple languages with state transitions using <%...%> syntax, is there any easy way to do a search and replace on just one of the languages, instead of the entire text? Also, is there a built-in method to get the text of the individual languages? The only way I can think to do this is with regular expressions, but I thought that this must be a fairly common requirement, and therefore I may have overlooked an existing built-in method.

Thanks,
Gareth.

[ 02-01-2005: Message edited by: Gareth ]