static int Main(string[] args)
{
bool printFile = false;
bool printConsole = false;
string fileName;
string outputFileName = null;
if (args.Length == 0)
{
Console.Write("Enter filename with file extension pxi: ");
return(0);
}
else
{
if (args.Length > 1)
{
if (args.Length > 2)
{
outputFileName = args[2];
}
if (args[1].ToString().ToLower() == "f")
{
printFile = true;
}
if (args[1].ToString().ToLower() == "c")
{
printConsole = true;
}
}
if (args[0] == "help")
{
Console.WriteLine("---- f for ouput tokens to file, c for display tokens on console ----");
return(0);
}
fileName = args[0];
}
if (!fileName.Contains(".pxi"))
{
if (fileName.Contains("."))
{
Console.WriteLine("Requires file with .pxi extension");
return(0);
}
fileName = fileName + ".pxi";
}
if (!File.Exists(fileName))
{
Console.WriteLine("{0} not found.", fileName);
return(0);
}
StreamReader sr = null;
try
{
sr = new StreamReader(fileName);
}
catch (Exception)
{
Console.WriteLine("could not open file {0}", fileName);
return(0);
}
Scanner.ScanFile(ref sr);
if (printFile)
{
Scanner.PrintTokensFile(outputFileName);
}
else if (printConsole)
{
Scanner.PrintTokensConsole();
}
sr.DiscardBufferedData();
sr.BaseStream.Seek(0, SeekOrigin.Begin);
sr.BaseStream.Position = 0;
Scanner.ScanFile(ref sr);
Parser.ParseTokens();
sr.DiscardBufferedData();
sr.BaseStream.Seek(0, SeekOrigin.Begin);
sr.BaseStream.Position = 0;
ICode.SetFilename(fileName);
Scanner.ScanFile(ref sr); //semantic pass
Parser.ParseTokens();
ICode.Flush();
//SymbolTable.printAll();
return(0);
}