public List<String> getNodeStrings(
String input, String xpath, String startRuleName, String parserName, String lexerName)
throws Exception {
Pair<Parser, Lexer> pl = getParserAndLexer(input, parserName, lexerName);
Parser parser = pl.a;
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;
}
protected void testError(
String input,
String path,
String expected,
String startRuleName,
String parserName,
String lexerName)
throws Exception {
Pair<Parser, Lexer> pl = getParserAndLexer(input, parserName, lexerName);
Parser parser = pl.a;
ParseTree tree = execStartRule(startRuleName, parser);
IllegalArgumentException e = null;
try {
XPath.findAll(tree, path, parser);
} catch (IllegalArgumentException iae) {
e = iae;
}
assertNotNull(e);
assertEquals(expected, e.getMessage());
}
public static Collection<ParseTree> findAll(ParseTree tree, String xpath, Parser parser) {
XPath p = new XPath(parser, xpath);
return p.evaluate(tree);
}