/// <summary>
/// Execute the input stream
/// </summary>
/// <param name="input">Input stream to be executed</param>
public void InterpretAntlrStream(ANTLRStringStream input)
{
KermitLexer lexer = new KermitLexer(input);
TokenRewriteStream tokens = new TokenRewriteStream(lexer);
_parser.TokenStream = tokens;
AstParserRuleReturnScope <KermitAST, CommonToken> ret;
try
{
ret = _parser.program();
CommitableScope g = GlobalScope as CommitableScope;
g?.CommitScope();
}
catch (Exception e) when(e is ParserException || e is PartialStatement)
{
CommitableScope g = GlobalScope as CommitableScope;
g?.RevertScope();
throw;
}
if (_parser.NumberOfSyntaxErrors == 0)
{
_root = ret.Tree;
try
{
Block(_root);
CommitableScope g = GlobalScope as CommitableScope;
g?.CommitScope();
}
catch (InterpreterException e)
{
if (e.CallStack != null)
{
Listener.Error("CallStack:");
foreach (string call in e.CallStack)
{
Listener.Error(" - " + call);
}
}
Listener.Error(e);
Stack.Clear(); // Clear the function stack after an error
}
}
else // We shouldn't reach this condition never
{
//throw new InterpreterException($"{_parser.NumberOfSyntaxErrors} syntax errors");
Listener.Error($"{_parser.NumberOfSyntaxErrors} syntax errors");
}
}
public static void Loop2()
{
bool exit = false;
string input = "";
KermitParser parser = new KermitParser(null);
//parser.TreeAdaptor = new KermitAdaptor();
while (!exit)
{
if (input == string.Empty)
{
Console.Write("> ");
}
else
{
Console.Write(".. ");
}
input += Console.ReadLine() + "\n";
ANTLRStringStream stream = new ANTLRStringStream(input);
KermitLexer lexer = new KermitLexer(stream);
TokenRewriteStream tokens = new TokenRewriteStream(lexer);
parser.TokenStream = tokens;
try
{
AstParserRuleReturnScope <KermitAST, CommonToken> result = parser.program();
var tree = (CommonTree)result.Tree;
DotTreeGenerator gen = new DotTreeGenerator();
Console.WriteLine("{0}", gen.ToDot(tree));
input = "";
//Console.WriteLine(globalScope.ToString());
}
catch (PartialStatement)
{
}
catch (ParserException e)
{
}
}
}