Example usage for org.antlr.v4.tool Grammar Grammar

Introduction

In this page you can find the example usage for org.antlr.v4.tool Grammar Grammar.

Prototype

public Grammar(String grammarText) throws org.antlr.runtime.RecognitionException 

Source Link

Document

For testing

Usage

From source file:no.ssb.vtl.test.junit.GrammarRule.java

License:Apache License

private void before() {
    try {//from  w  w  w.j a  v a2 s . c  om
        if (grammarURL == null) {
            try {
                Class<?> vtlParserClass = ClassLoader.getSystemClassLoader()
                        .loadClass("no.ssb.vtl.parser.VTLParser");
                grammarURL = Resources.getResource(vtlParserClass, "VTL.g4");
            } catch (ClassNotFoundException e) {
                throw new RuntimeException(
                        "could not find no.ssb.vtl.parser.VTLParser.class, did you compile antlr project?");
            }
        }
        String grammarString = Resources.toString(grammarURL, Charset.defaultCharset());
        grammar = new Grammar(grammarString);
    } catch (IOException | RecognitionException e) {
        throw new IllegalArgumentException("could not create grammar", e);
    }
}

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