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<title>t049treeparser</title>

<!-- ANTLR includes -->
<script type="text/javascript" src="../../lib/antlr3-all.js"></script>
<script type="text/javascript" src="t049treeparseraLexer.js"></script>
<script type="text/javascript" src="t049treeparseraParser.js"></script>
<script type="text/javascript" src="t049treeparseraWalker.js"></script>
<script type="text/javascript" src="t049treeparserbLexer.js"></script>
<script type="text/javascript" src="t049treeparserbParser.js"></script>
<script type="text/javascript" src="t049treeparserbWalker.js"></script>
<script type="text/javascript" src="t049treeparsercLexer.js"></script>
<script type="text/javascript" src="t049treeparsercParser.js"></script>
<script type="text/javascript" src="t049treeparsercWalker.js"></script>
<script type="text/javascript" src="t049treeparserdLexer.js"></script>
<script type="text/javascript" src="t049treeparserdParser.js"></script>
<script type="text/javascript" src="t049treeparserdWalker.js"></script>
<script type="text/javascript" src="t049treeparsereLexer.js"></script>
<script type="text/javascript" src="t049treeparsereParser.js"></script>
<script type="text/javascript" src="t049treeparsereWalker.js"></script>
<script type="text/javascript" src="t049treeparserfLexer.js"></script>
<script type="text/javascript" src="t049treeparserfParser.js"></script>
<script type="text/javascript" src="t049treeparserfWalker.js"></script>
<script type="text/javascript" src="t049treeparsergLexer.js"></script>
<script type="text/javascript" src="t049treeparsergParser.js"></script>
<script type="text/javascript" src="t049treeparsergWalker.js"></script>
<script type="text/javascript" src="t049treeparserhLexer.js"></script>
<script type="text/javascript" src="t049treeparserhParser.js"></script>
<script type="text/javascript" src="t049treeparserhWalker.js"></script>
<script type="text/javascript" src="t049treeparseriLexer.js"></script>
<script type="text/javascript" src="t049treeparseriParser.js"></script>
<script type="text/javascript" src="t049treeparseriWalker.js"></script>



<!-- JsUnit include -->
<script type="text/javascript" src="../jsunit/app/jsUnitCore.js"></script>

<!-- Test Code -->
<script type="text/javascript">
    function execTreeParser(lexerCls, parserCls, grammarEntry, walkerCls, treeEntry, xinput)
    {
        var cstream = new org.antlr.runtime.ANTLRStringStream(xinput),
            lexer = new lexerCls(cstream),
            tstream = new org.antlr.runtime.CommonTokenStream(lexer),
            parser = new parserCls(tstream);
        var r = parser[grammarEntry]();

        var nodes = new org.antlr.runtime.tree.CommonTreeNodeStream(r.getTree());
        nodes.setTokenStream(tstream);
        var walker = new (walkerClass(walkerCls))(nodes);
        walker[treeEntry]();

        return walker._output;
    }

    function walkerClass(base) {
        var TWalker = function() {
            TWalker.superclass.constructor.apply(this, arguments);
            this._output = "";
            this.traces = [];
        };

        org.antlr.lang.extend(TWalker, base, {
            capture: function(t) {
                this._output += t;
            },
            traceIn: function(ruleName, ruleIndex) {
                this.traces.push(">"+ruleName);
            },
            traceOut: function(ruleName, ruleIndex) {
                this.traces.push("<"+ruleName);
            },
            recover: function(input, re) {
                throw re;
            }
        });

        return TWalker;
    }

    function testFlatList() {
        var found = execTreeParser(t049treeparseraLexer,
                t049treeparseraParser,
                "a",
                t049treeparseraWalker,
                "a",
                "abc 34");
        assertEquals(found, "abc, 34");
    }

    function testSimpleTree() {
        var found = execTreeParser(t049treeparserbLexer,
                t049treeparserbParser,
                "a",
                t049treeparserbWalker,
                "a",
                "abc 34");
        assertEquals(found, "abc, 34");
    }

    function testFlatVsTreeDecision() {
        var found = execTreeParser(t049treeparsercLexer,
                t049treeparsercParser,
                "a",
                t049treeparsercWalker,
                "a",
                "a 1 b 2");
        assertEquals(found, "^(a 1)b 2\n");
    }

    function testFlatVsTreeDecision2() {
        var found = execTreeParser(t049treeparserdLexer,
                t049treeparserdParser,
                "a",
                t049treeparserdWalker,
                "a",
                "a 1 2 3 b 4 5");
        assertEquals(found, "^(a 3)b 5\n");
    }

    function testCyclicDFALookahead() {
        var found = execTreeParser(t049treeparsereLexer,
                t049treeparsereParser,
                "a",
                t049treeparsereWalker,
                "a",
                "a 1 2 3.");
        assertEquals(found, "alt 1");
    }

    function testNullableChildList() {
        var found = execTreeParser(t049treeparserfLexer,
                t049treeparserfParser,
                "a",
                t049treeparserfWalker,
                "a",
                "abc");
        assertEquals(found, "abc");
    }

    function testNullableChildList2() {
        var found = execTreeParser(t049treeparsergLexer,
                t049treeparsergParser,
                "a",
                t049treeparsergWalker,
                "a",
                "abc 3;");
        assertEquals(found, "abc");
    }

    function testNullableChildList3() {
        var found = execTreeParser(t049treeparserhLexer,
                t049treeparserhParser,
                "a",
                t049treeparserhWalker,
                "a",
                "abc 3 def;");
        assertEquals(found, "abc, def");
    }

    function testActionsAfterRoot() {
        var found = execTreeParser(t049treeparseriLexer,
                t049treeparseriParser,
                "a",
                t049treeparseriWalker,
                "a",
                "abc;");
        assertEquals(found, "abc, 2");
    }


</script>

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    <h1>t049treeparser</h1>
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