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 void Check(Token root)
{
if (root == null) { throw new ArgumentNullException("args"); }
if (0 == root.Select("CompileOptions").Length) { throw new ArgumentException("No @CompileOptions Token"); }
if (1 < root.Select("CompileOptions").Length) { throw new ArgumentException("Too many @CompileOptions Token"); }
if (0 == root.Select("Sources").Length || 0 == root.Find("Sources").Follows.Length)
{ throw new ArgumentException("No source filename is specified to command line parameter"); }
if (1 < root.Select("Sources").Length) { throw new ArgumentException("Too many @Sources Token"); }
if (0 == root.Select("CompileOptions/@out").Length)
{
if (0 == root.Select("Sources").Length
|| 0 == root.Find("Sources").Follows.Length)
{
throw new ArgumentException("Cannot omit source path when out option was omitted");
}
}
if (1 < root.Select("CompileOptions/out").Length) { throw new ArgumentException("Too many out options are specified to command line parameter"); }
if (1 == root.Select("Sources").Length)
{
foreach (Token p in root.Select("Sources/SourcePath"))
{
if (false == File.Exists(p.Value))
{
if (false == File.Exists(p.Value + ".nana"))
{ throw new FileNotFoundException("Source file was not found", p.Value); }
else
{ p.Value += ".nana"; }
}
}
}
}