ANTLR, ANother Tool for Language Recognition, is a tool similar to lex/yacc that provides a framework for constructing recognizers, compilers, and translators from grammatical descriptions containing CeePlusPlus, JavaLanguage, or SatherLanguage actions.

It is fully in the public domain.

For more information, see http://www.antlr.org/

Preliminary support for CsharpLanguage generation is available at the ANTLR web site.

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See also JavaCompilerCompiler