the GOLD Meta-Language , consisting of BNF and Regular Expressions. Free Programming Language Grammars for Compiler Construction , Freely available BNF/ EBNF grammars for C/C++, Pascal , COBOL , Ada 95 , PL/I . Retrieved from " http://en.wikipedia.org/wiki/Backus%E2%80%93Naur_Form " Categories : Formal languages | Compiler theory Hidden categories: Wikipedia articles incorporating