static int Main(string[] args)
{
String command = null;
List <String> scriptFilename = new List <String>();
bool showUsage = false;
bool nonDebugNonGuiExitOnError = false;
bool showIncludes = false;
int errorCode = 0; // 0==success, the return value
PrintVersion();
ParseArguments(args,
out command, out scriptFilename, out showUsage,
out nonDebugNonGuiExitOnError, out showIncludes, out errorCode);
if (showUsage)
{
PrintUsage();
return(errorCode);
}
TextReader reader;
bool showPrompt;
bool readFromConsole;
errorCode = DetermineAndOpenInputSource(command, scriptFilename,
out reader, out showPrompt, out readFromConsole);
if (errorCode != 0)
{
return(errorCode);
}
GrShell shell = new GrShell(reader);
GrShellImpl shellImpl = new GrShellImpl();
IGrShellImplForDriver impl = shellImpl;
GrShellDriver driver = new GrShellDriver(shell, impl);
shell.SetImpl(shellImpl);
shell.SetDriver(driver);
driver.tokenSources.Push(shell.token_source);
driver.showIncludes = showIncludes;
impl.nonDebugNonGuiExitOnError = nonDebugNonGuiExitOnError;
try
{
driver.conditionalEvaluationResults.Push(true);
while (!driver.Quitting && !driver.Eof)
{
driver.ShowPromptAsNeeded(showPrompt);
bool success = shell.ParseShellCommand();
errorCode = HandleEofOrErrorIfNonConsoleShell(scriptFilename, success, nonDebugNonGuiExitOnError,
shell, driver,
ref reader, ref showPrompt, ref readFromConsole);
if (errorCode != 0)
{
return(errorCode);
}
}
driver.conditionalEvaluationResults.Pop();
}
catch (Exception e)
{
Console.WriteLine("exit due to " + e.Message);
errorCode = -2;
}
finally
{
impl.Cleanup();
}
return(errorCode);
}
