public static void Execute(string filePath)
{
if (grammarActions == null)
{
init();
}
ExecutionContext.Reset();
//create default base context
ExecutionContext.EnterLevel();
(ExecutionContext.Current.DefaultBroker as FileBlockBroker).SetLibFolder(DefaultBlocksPath);
ScriptReader reader = new ScriptReader(filePath);
SemanticProcessor<Token> processor = new SemanticProcessor<Token>(reader, grammarActions);
ParseMessage parseMessage = processor.ParseAll();
reader.Close();
if (parseMessage != ParseMessage.Accept)
{
string newLine = "\n";
string errorMessage = parseMessage.ToString()+".";
string location = string.Format("Expecting one of following tokens at Line {0}, Column {1}:", processor.CurrentToken.Line, processor.CurrentToken.Column);
string symbols = "";
foreach (Symbol s in processor.GetExpectedTokens())
{
string txt = "\t'" + s.Name + "' of type " + s.Kind.ToString()+newLine;
symbols += txt;
}
throw new Exception(errorMessage+newLine+location+newLine+symbols);
}
Optional<TokenList<CommandHandler>> optCommands = processor.CurrentToken as Optional<TokenList<CommandHandler>>;
if (optCommands.HasValue)
{
TokenList<CommandHandler> commands = optCommands.Value;
foreach (CommandHandler command in commands)
{
command.Execute();
}
}
}