public Expression(Operator op, List<VarSpec> varSpecs)
{
if (op == null)
{
throw new ArgumentNullException("op");
}
if (varSpecs == null)
{
throw new ArgumentNullException("varSpecs");
}
this.op = op;
this.varSpecs = varSpecs;
}
public static bool TryParse(char code, out Operator op)
{
op = null;
switch (code)
{
case '\0':
op = Default;
break;
case '+':
op = Reserved;
break;
case '#':
op = Fragment;
break;
case '.':
op = Label;
break;
case '/':
op = Path;
break;
case ';':
op = Matrix;
break;
case '?':
op = Query;
break;
case '&':
op = Continuation;
break;
default:
return false;
}
return true;
}
private void ReadExpression(char ch)
{
CreateLiteral();
token = Token.VarSpec;
if (!Operator.TryParse(ch, out exprOperator))
{
exprOperator = Operator.Default;
ReadVarSpec(ch);
}
}