Examples with GrammarParserInterpreter org.antlr.v4.tool.GrammarParserInterpreter used on opensource projects

Example 6 with GrammarParserInterpreter

use of org.antlr.v4.tool.GrammarParserInterpreter in project antlr4 by antlr.

the class TestUnicodeGrammar method parseTreeForGrammarWithInput.

private static String parseTreeForGrammarWithInput(String grammarText, String rootRule, String inputText) throws Exception {
    Grammar grammar = new Grammar(grammarText);
    LexerInterpreter lexEngine = grammar.createLexerInterpreter(CharStreams.fromString(inputText));
    CommonTokenStream tokens = new CommonTokenStream(lexEngine);
    GrammarParserInterpreter parser = grammar.createGrammarParserInterpreter(tokens);
    ParseTree parseTree = parser.parse(grammar.rules.get(rootRule).index);
    InterpreterTreeTextProvider nodeTextProvider = new InterpreterTreeTextProvider(grammar.getRuleNames());
    return Trees.toStringTree(parseTree, nodeTextProvider);
}