public static Token GetCmdLnArgs(string[] args)
{
if (args == null)
throw new ArgumentNullException("args");
List<Token> opts = new List<Token>();
List<Token> srcs = new List<Token>();
Action<string> Pick = delegate(string arg)
{
if (arg == null) return;
arg = arg.Trim();
if (arg == "") return;
Token t;
if (Regex.IsMatch(arg, OptHead))
{
if ((t = PickOpt(arg)) == null)
{
throw new Exception(string.Format("Not supported option: {0}", arg));
}
opts.Add(t);
}
else
{
srcs.Add(PickSrc(arg));
}
};
foreach (string arg in args)
{
Pick(arg);
}
Token srct = new Token("", "Sources");
srct.Follows = srcs.ToArray();
Token optt = new Token("", "CompileOptions");
optt.Follows = opts.ToArray();
if (0 == optt.Select("out").Length && srcs.Count > 0)
{
string v = srcs[0].Value;
string dir = System.IO.Path.GetDirectoryName(v);
string fn = System.IO.Path.GetFileNameWithoutExtension(v) + ".exe";
optt.FlwsAdd(NewOpt("out", System.IO.Path.Combine(dir, fn)));
}
Token ret = new Token("", "Arguments");
ret.Follows = new Token[] { optt, srct };
return ret;
}
public static Token CreateFunToken(string func, string name, string returnType)
{
Debug.Assert(false == string.IsNullOrEmpty(func));
Token f;
f = new Token(func, "Fun");
if (string.IsNullOrEmpty(name) == false)
{ f.FlwsAdd(name, "Name"); }
f.FlwsAdd("(", "Prm").FlwsAdd(")");
if (string.IsNullOrEmpty(returnType) == false)
{
f.FlwsAdd(":", "TypSpc");
f.FlwsTail.FlwsAdd(returnType, "Id");
}
f.FlwsAdd("..", "Block");
f.FlwsTail.Follows = new Token[0];
return f;
}
public static void Prepare(Token root)
{
if (false == root.Contains("Syntax"))
{ root.FlwsAdd(new Token("", "Syntax")); }
if (false == root.Contains("Code"))
{ root.FlwsAdd(new Token("", "Code")); }
}
public static Token CreateClassToken(string name, string basename)
{
Token root = new Token("class", "Typ");
root.FlwsAdd(name, "Name");
if (null != basename)
{
Token bs = new Token("->", "BaseTypeDef");
bs.FlwsAdd(basename, "Id");
root.FlwsAdd(bs);
}
root.FlwsAdd("...", "Block")
.FlwsAdd(",,,");
return root;
}