Code:
/ DotNET / DotNET / 8.0 / untmp / whidbey / REDBITS / ndp / fx / src / Xml / System / Xml / XPath / Internal / AttributeQuery.cs / 1 / AttributeQuery.cs
//------------------------------------------------------------------------------ //// Copyright (c) Microsoft Corporation. All rights reserved. // //[....] //----------------------------------------------------------------------------- namespace MS.Internal.Xml.XPath { using System; using System.Xml; using System.Xml.XPath; using System.Diagnostics; using System.Globalization; internal sealed class AttributeQuery : BaseAxisQuery { private bool onAttribute = false; public AttributeQuery(Query qyParent, string Name, string Prefix, XPathNodeType Type) : base(qyParent, Name, Prefix, Type) {} private AttributeQuery(AttributeQuery other) : base(other) { this.onAttribute = other.onAttribute; } public override void Reset() { onAttribute = false; base.Reset(); } public override XPathNavigator Advance() { while (true) { if (! onAttribute) { currentNode = qyInput.Advance(); if (currentNode == null) { return null; } position = 0; currentNode = currentNode.Clone(); onAttribute = currentNode.MoveToFirstAttribute(); } else { onAttribute = currentNode.MoveToNextAttribute(); } if (onAttribute) { Debug.Assert(! currentNode.NamespaceURI.Equals(XmlReservedNs.NsXmlNs)); if (matches(currentNode)) { position++; return currentNode; } } } // while } public override XPathNavigator MatchNode(XPathNavigator context) { if (context != null) { if (context.NodeType == XPathNodeType.Attribute && matches(context)) { XPathNavigator temp = context.Clone(); if (temp.MoveToParent()) { return qyInput.MatchNode(temp); } } } return null; } public override XPathNodeIterator Clone() { return new AttributeQuery(this); } } } // File provided for Reference Use Only by Microsoft Corporation (c) 2007. // Copyright (c) Microsoft Corporation. All rights reserved.
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