Adding Methods that may be Invoked

You can add methods to the parser which can be invoked in the rules section. This is done as shown below:

import java_cup.runtime.*;

action code {: … put initialization code here … :}

terminal String TITLE, AUTHOR, DATE, ISBN, PUBLISHER, SLASH, EOL;

non terminal bookCatalogue, start_data, books, book, start_book, title, author, date, isbn, publisher, end_book, end_data;

bookCatalogue ::= start_data books end_data

You can add methods to the parser which can be invoked in the rules section. This is done as shown below: