Currently using version 2.5.5 version of ANTLR and wish to upgrade to 2.7.5 are there any known issues? Any help/advice would be much appreciated. Clive -------------- next part -------------- An HTML attachment was scrubbed... URL: http://www.antlr.org/pipermail/antlr-interest/attachments/20050808/53ef0b66/attachment-0001.html