Esempio n. 1
0
        private void SimpleSelectorSequence()
        {
            //simple_selector_sequence
            //  : [ type_selector | universal ]
            //    [ HASH | class | attrib | pseudo | negation ]*
            //  | [ HASH | class | attrib | pseudo | negation ]+
            //  ;

            var named = false;

            for (var modifiers = 0; ; modifiers++)
            {
                var token = TryRead(ToTokenSpec(TokenKind.Hash), ToTokenSpec(Token.Dot()), ToTokenSpec(Token.LeftBracket()), ToTokenSpec(Token.Colon()));

                if (token == null)
                {
                    if (named || modifiers > 0)
                    {
                        break;
                    }
                    TypeSelectorOrUniversal();
                    named = true;
                }
                else
                {
                    if (modifiers == 0 && !named)
                    {
                        _generator.Universal(NamespacePrefix.None); // implied
                    }
                    if (token.Value.Kind == TokenKind.Hash)
                    {
                        _generator.Id(token.Value.Text);
                    }
                    else
                    {
                        Unread(token.Value);
                        switch (token.Value.Text[0])
                        {
                        case '.': Class(); break;

                        case '[': Attrib(); break;

                        case ':': Pseudo(); break;

                        default: throw new Exception("Internal error.");
                        }
                    }
                }
            }
        }