ParseStepPattern()

QilNode System.Xml.Xsl.Xslt.XPathPatternParser.ParseStepPattern ( )

inlineprivate

Definition at line 138 of file XPathPatternParser.cs.

    {
        XPathAxis xPathAxis;
        switch (_scanner.Kind)
        {
        case LexKind.DotDot:
        case LexKind.Dot:
            throw _scanner.CreateException(System.SR.XPath_InvalidAxisInPattern);
        case LexKind.At:
            xPathAxis = XPathAxis.Attribute;
            _scanner.NextLex();
            break;
        case LexKind.Axis:
            xPathAxis = _scanner.Axis;
            if (xPathAxis != XPathAxis.Child && xPathAxis != XPathAxis.Attribute)
            {
                throw _scanner.CreateException(System.SR.XPath_InvalidAxisInPattern);
            }
            _scanner.NextLex();
            _scanner.NextLex();
            break;
        case LexKind.Name:
        case LexKind.Star:
            xPathAxis = XPathAxis.Child;
            break;
        default:
            throw _scanner.CreateException(System.SR.XPath_UnexpectedToken, _scanner.RawValue);
        }
        XPathParser<QilNode>.InternalParseNodeTest(_scanner, xPathAxis, out var nodeType, out var nodePrefix, out var nodeName);
        QilNode qilNode = _ptrnBuilder.Axis(xPathAxis, nodeType, nodePrefix, nodeName);
        if (_ptrnBuilder is XPathPatternBuilder xPathPatternBuilder)
        {
            List<QilNode> list = new List<QilNode>();
            while (_scanner.Kind == LexKind.LBracket)
            {
                list.Add(ParsePredicate(qilNode));
            }
            if (list.Count > 0)
            {
                qilNode = xPathPatternBuilder.BuildPredicates(qilNode, list);
            }
        }
        else
        {
            while (_scanner.Kind == LexKind.LBracket)
            {
                qilNode = _ptrnBuilder.Predicate(qilNode, ParsePredicate(qilNode), reverseStep: false);
            }
        }
        return qilNode;
    }

References System.Xml.Xsl.Xslt.XPathPatternParser._ptrnBuilder, System.Xml.Xsl.Xslt.XPathPatternParser._scanner, System.Xml.Xsl.XPath.IXPathBuilder< Node >.Axis(), System.Xml.Xsl.XPath.XPathScanner.Axis, System.Xml.Xsl.XPath.XPathScanner.CreateException(), System.Xml.Dictionary, System.Xml.Xsl.XPath.XPathScanner.Kind, System.list, System.Xml.Xsl.XPath.XPathScanner.NextLex(), System.Xml.Xsl.Xslt.XPathPatternParser.ParsePredicate(), System.Xml.Xsl.XPath.IXPathBuilder< Node >.Predicate(), System.Xml.Xsl.XPath.XPathScanner.RawValue, System.SR.XPath_InvalidAxisInPattern, and System.SR.XPath_UnexpectedToken.

Referenced by System.Xml.Xsl.Xslt.XPathPatternParser.ParseRelativePathPattern().