/// <summary>
/// Consumes a single <see cref="CompoundSelector"/> and it's <see cref="ESelectorCombinator"/> (if available)
/// </summary>
/// <returns></returns>
private static RelativeSelector Consume_Relative_Selector(DataConsumer <CssToken> Stream)
{
Stream.Consume_While(tok => tok.Type == ECssTokenType.Whitespace);// Consume all of the prefixing whitespace
CompoundSelector Compound = Consume_Compound_Selector(Stream);
if (Compound == null)
{
return(null);
}
if (!Starts_Combinator(Stream.Next))
{
return(new RelativeSelector(ESelectorCombinator.None, Compound));
}
else
{
CombinatorToken Comb = Consume_Combinator(Stream);
ESelectorCombinator Combinator = ESelectorCombinator.None;
if (Stream.Next.Type == ECssTokenType.Combinator)
{
switch (Comb.Value)
{
case " ":
case ">>":
Combinator = ESelectorCombinator.Descendant;
break;
case ">":
Combinator = ESelectorCombinator.Child;
break;
case "+":
Combinator = ESelectorCombinator.Sibling_Adjacent;
break;
case "~":
Combinator = ESelectorCombinator.Sibling_Subsequent;
break;
default:
throw new CssParserException(string.Concat("Unrecognized Combinator(", Comb.Value, ")"));
}
}
return(new RelativeSelector(Combinator, Compound));
}
}
/// <summary>
/// Creates a new selector sequence
/// </summary>
/// <param name="Chain"></param>
/// <param name="Combinator">The combinator that comes AFTER the selector sequence.</param>
public RelativeSelector(ESelectorCombinator Combinator, CompoundSelector Compound) : base(Compound)
{
this.Combinator = Combinator;
}
