Sign Up to our social questions and Answers Engine to ask questions, answer people’s questions, and connect with other people.
Login to our social questions & Answers Engine to ask questions answer people’s questions & connect with other people.
Lost your password? Please enter your email address. You will receive a link and will create a new password via email.
Please briefly explain why you feel this question should be reported.
Please briefly explain why you feel this answer should be reported.
Please briefly explain why you feel this user should be reported.
How can I know during parsing which rule is currently matched?
I’d like to automatically build an XML (or other objectal hierarchy) representing the parsed input, using rule names, without the need of using grammar actions or trees.
Is this possible?
Many thanks,
Yaakov
AFAIK, that is not possible. But why don’t you use ANTLR’s built in tree construction? In the
options{ }part of your grammar, addoutput=AST;and use rewrite rules where applicable. See: http://www.antlr.org/wiki/display/~admin/2008/11/30/Example+tree+rewriting+with+patterns