static int _Lalr1Tree(string[] args)
{
if (1 > args.Length || args.Length > 2)
{
_PrintUsageLalr1Tree();
return(1);
}
var pckspec = args[0];
string pck;
using (var sr = File.OpenText(pckspec))
pck = sr.ReadToEnd();
var cfg = CfgDocument.Parse(pck);
var lex = LexDocument.Parse(pck);
var tokenizer = lex.ToTokenizer(
(1 < args.Length) ? (TextReaderEnumerable) new FileReaderEnumerable(args[1]) :
new ConsoleReaderEnumerable(),
cfg.EnumSymbols(), new _TokenizerConsoleProgress());
var parser = cfg.ToLalr1Parser(tokenizer, new _Lalr1ConsoleProgress());
Console.Error.WriteLine();
parser.ShowHidden = true;
while (LRNodeType.EndDocument != parser.NodeType)
{
Console.WriteLine(parser.ParseReductions());
}
return(1);
}
static int _Fagen(string[] args)
{
string specFile = null;
string outFile = null;
string @namespace = null;
string @class = null;
string language = null; // "c#";
var optIndex = -1;
for (var i = 0; i < args.Length; ++i)
{
if ("--help" == args[i] || "/?" == args[i] || "/help" == args[i])
{
Console.Error.Write("Usage: ");
_PrintUsageFAGen();
return(0);
}
if (args[i].StartsWith("/"))
{
optIndex = i;
if (i == args.Length - 1)
{
Console.Error.Write("Usage: ");
_PrintUsageFAGen();
return(1);
}
switch (args[i])
{
case "/language":
++i;
language = args[i];
break;
case "/namespace":
++i;
@namespace = args[i];
break;
case "/class":
++i;
@class = args[i];
break;
default:
_PrintUsageFAGen();
return(1);
}
}
else
{
if (-1 != optIndex)
{
Console.Error.Write("Usage: ");
_PrintUsageFAGen();
return(1);
}
if (0 == i)
{
specFile = args[i];
}
else if (1 == i)
{
outFile = args[i];
}
else
{
Console.Error.Write("Usage: ");
_PrintUsageFAGen();
return(1);
}
}
}
TextReader inp = null;
TextWriter outp = null;
try
{
if (null == specFile)
{
inp = Console.In;
}
else
{
inp = new StreamReader(specFile);
}
if (null == outFile)
{
outp = Console.Out;
}
else
{
outp = new StreamWriter(outFile);
}
var buf = inp.ReadToEnd();
var lex = LexDocument.Parse(buf);
var cfg = CfgDocument.Parse(buf);
var syms = cfg.FillSymbols();
if (string.IsNullOrEmpty(@class))
{
if (null != outFile)
{
@class = Path.GetFileNameWithoutExtension(outFile);
}
else if (0 < syms.Count)
{
foreach (var attrs in lex.AttributeSets)
{
var i = attrs.Value.IndexOf("start");
if (-1 < i && attrs.Value[i].Value is bool && (bool)attrs.Value[i].Value)
{
@class = string.Concat(attrs.Key, "Tokenizer");
break;
}
}
if (null == @class)
{
@class = string.Concat(syms[0], "Tokenizer");
}
}
}
TokenizerCodeGenerator.WriteClassTo(lex, syms, @class, @namespace, language, new _TokenizerConsoleProgress(), outp);
Console.Error.WriteLine();
outp.Flush();
return(0);
}
catch (Exception ex)
{
Console.Error.WriteLine(ex.Message);
return(1);
}
finally
{
inp.Close();
outp.Close();
}
}