private ClassExpression Class(INode node)
{
Debug.Assert(node.Name == "class" && node.Count == 2);
var invert = node[0].Count == 1;
var ranges = node[1].Children.Select(SingleOrRange).ToArray();
return(ClassExpression.From(node, invert, ranges));
}
private static ClassExpression Class(INode node)
{
var parts = new List <ClassPartExpression>();
foreach (var part in node.Children.Skip(1))
{
switch (part.Name)
{
case "range":
parts.Add(ClassRangeExpression.From(part,
Char.ConvertToUtf32(DecodeChar(part[0]), 0),
Char.ConvertToUtf32(DecodeChar(part[1]), 0)));
break;
default:
parts.Add(ClassCharExpression.From(part, Char.ConvertToUtf32(DecodeChar(part), 0)));
break;
}
}
return(ClassExpression.From(node, node[0].Count != 0, parts));
}