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using System;
using antlr;
class Test
{
public static void Main(string[] args)
{
try
{
TinyCLexer lexer = new TinyCLexer(new ByteBuffer(Console.OpenStandardInput()));
TinyCParser parser = new TinyCParser(lexer);
parser.program();
ParseTree tree = parser.getParseTree();
Console.Out.WriteLine("parse tree: \n"+tree.ToStringTree());
/*
Console.Out.WriteLine("derivation steps: "+parser.getNumberOfDerivationSteps());
Console.Out.WriteLine("derivation step 0: "+tree.getLeftmostDerivationStep(0));
Console.Out.WriteLine("derivation step 1: "+tree.getLeftmostDerivationStep(1));
Console.Out.WriteLine("derivation step 2: "+tree.getLeftmostDerivationStep(2));
Console.Out.WriteLine("derivation step 3: "+tree.getLeftmostDerivationStep(3));
*/
int nSteps = parser.getNumberOfDerivationSteps();
Console.Out.WriteLine("derivation:\n" + tree.getLeftmostDerivation(nSteps));
}
catch(Exception e)
{
Console.Error.WriteLine("exception: "+e);
}
}
}
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