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<title>t011lexer</title>
<!-- ANTLR includes -->
<script type="text/javascript" src="../../lib/antlr3-all.js"></script>
<script type="text/javascript" src="t011lexer.js"></script>
<!-- JsUnit include -->
<script type="text/javascript" src="../jsunit/app/jsUnitCore.js"></script>
<!-- Test Code -->
<script type="text/javascript">
function TLexer() {
TLexer.superclass.constructor.apply(this, arguments);
}
org.antlr.lang.extend(TLexer, t011lexer, {
reportError: function(re) {
/* don't recover, just crash */
throw re;
}
});
function testValid() {
var stream = new org.antlr.runtime.ANTLRStringStream("foobar _Ab98 \n A12sdf"),
lexer = new TLexer(stream),
token;
token = lexer.nextToken();
assertEquals(token.getType(), lexer.IDENTIFIER);
assertEquals(token.getStartIndex(), 0);
assertEquals(token.getStopIndex(), 5);
assertEquals(token.getText(), "foobar");
token = lexer.nextToken();
assertEquals(token.getType(), lexer.WS);
assertEquals(token.getStartIndex(), 6);
assertEquals(token.getStopIndex(), 6);
assertEquals(token.getText(), ' ');
token = lexer.nextToken();
assertEquals(token.getType(), lexer.IDENTIFIER);
assertEquals(token.getStartIndex(), 7);
assertEquals(token.getStopIndex(), 11);
assertEquals(token.getText(), '_Ab98');
token = lexer.nextToken();
assertEquals(token.getType(), lexer.WS);
assertEquals(token.getStartIndex(), 12);
assertEquals(token.getStopIndex(), 14);
assertEquals(token.getText(), " \n ");
token = lexer.nextToken();
assertEquals(token.getType(), lexer.IDENTIFIER);
assertEquals(token.getStartIndex(), 15);
assertEquals(token.getStopIndex(), 20);
assertEquals(token.getText(), 'A12sdf');
token = lexer.nextToken();
assertEquals(token.getType(), lexer.EOF);
}
function testMalformedInput() {
var stream = new org.antlr.runtime.ANTLRStringStream('a-b'),
lexer = new TLexer(stream),
token;
lexer.nextToken();
try {
token = lexer.nextToken();
fail("nextToken should have thrown error on invalid input");
} catch (e) {
assert(e instanceof org.antlr.runtime.NoViableAltException);
assertEquals(e.getUnexpectedType(), '-');
assertEquals(e.charPositionInLine, 1);
assertEquals(e.line, 1);
}
}
</script>
</head>
<body>
<h1>t011lexer</h1>
</body>