Examples with Tuple2 org.antlr.v4.runtime.misc.Tuple2 used on opensource projects

Example 26 with Tuple2

use of org.antlr.v4.runtime.misc.Tuple2 in project antlr4 by tunnelvisionlabs.

the class TestXPath method getNodeStrings.

public List<String> getNodeStrings(String input, String xpath, String startRuleName, String parserName, String lexerName) throws Exception {
    Tuple2<Parser, Lexer> pl = getParserAndLexer(input, parserName, lexerName);
    Parser parser = pl.getItem1();
    ParseTree tree = execStartRule(startRuleName, parser);
    List<String> nodes = new ArrayList<String>();
    for (ParseTree t : XPath.findAll(tree, xpath, parser)) {
        if (t instanceof RuleContext) {
            RuleContext r = (RuleContext) t;
            nodes.add(parser.getRuleNames()[r.getRuleIndex()]);
        } else {
            TerminalNode token = (TerminalNode) t;
            nodes.add(token.getText());
        }
    }
    return nodes;
}