Hi Rebols, I'm working on an cgi-application and want to do some reasonable error checking on what users type in my html-form as their email address. Relying on rebols email! datatype and email? type-tester is not enough. Surely someone on the rebol list knows where I can find the (E)BNF syntax specification or something similiar. Thank you in advance, Christian CHE Ensel [EMAIL PROTECTED] - Germany -