ANTLR ANTLR Targets/Language Runtimes Language Support

Example

ANTLR is capable of generating parsers for a number of programming languages:

1. C# Target
2. Python Target
3. JavaScript Target
4. Java Target

By default ANTLR will generate a parser from commandline in the Java programming language :

Java -jar antlr-4.5.3-complete.jar yourGrammar.g4 //Will output a
    java parser

To change the target language you can run the following command from the OS terminal/commandline:

    antlr4 -Dlanguage=Python3 yourGrammar.g4 
//with alias
    java -jar antlr-4.5.3-complete.jar -Dlanguage=Python3 yourGrammar.g4 
//without alias

Rather than use the '-Dlanguage' parameter on the commandline/terminal each time to build your desired parser for a specific language you can select the target from within your .g4 grammar file by including the target within the global section:

options {
    language  = "CSharp";
}
//or
options {
    language="Python";
}

To use the generated parser output make sure you have the ANTLR runtime for the specified language :

1. CSharp runtime
2. Python 2 runtime
3. python 3 runtime

Full instructions and information on ANTLR run-times libraries