private static void Main(string[] args)
{
try
{
string filename;
string text;
string log;
if (GPCG.ProcessOptions(args, out filename, out text, out log))
{
using (TextWriter textWriter = (text != null) ? File.CreateText(text) : Console.Out)
{
Parser parser = new Parser();
Grammar grammar = parser.Parse(filename);
LALRGenerator lALRGenerator = new LALRGenerator(grammar);
List <State> states = lALRGenerator.BuildStates();
lALRGenerator.ComputeLookAhead();
lALRGenerator.BuildParseTable();
if (GPCG.REPORT)
{
lALRGenerator.Report(log);
}
CodeGenerator codeGenerator = new CodeGenerator(textWriter);
codeGenerator.Generate(states, grammar);
}
}
}
catch (Scanner.ParseException ex)
{
Console.Error.WriteLine("Parse error (line {0}, column {1}): {2}", ex.line, ex.column, ex.Message);
}
catch (Exception ex2)
{
Console.Error.WriteLine("Unexpected Error {0}", ex2.Message);
Console.Error.WriteLine("Please report to [email protected]");
}
}
private static bool ProcessOptions(string[] args, out string src, out string dst, out string log)
{
src = null;
dst = null;
log = null;
for (int i = 0; i < args.Length; i++)
{
string text = args[i];
if (text[0] == '-' || text[0] == '/')
{
string key;
if ((key = text.Substring(1)) != null)
{
switch (key)
{
case "?":
case "h":
case "help":
GPCG.DisplayHelp();
return(false);
case "v":
case "version":
GPCG.DisplayVersion();
return(false);
case "l":
case "no-lines":
GPCG.LINES = false;
break;
case "r":
case "report":
GPCG.REPORT = true;
break;
default:
break;
}
}
}
else
{
if (src == null)
{
src = text;
}
else
{
if (dst == null)
{
dst = text;
}
else
{
if (log == null)
{
log = text;
}
}
}
}
}
if (src == null)
{
GPCG.DisplayHelp();
return(false);
}
return(true);
}
