ANTLR is an actively used grammar language created in 1992.

27Years Old 4,894Users 30Jobs

Example code from Wikipedia:

TextReader reader;
 // (...) Fill TextReader with character
 SumLexer lexer = new SumLexer(reader);
 SumParser parser = new SumParser(lexer);

 parser.expression();
Edit

Last updated February 11th, 2019