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Viewing changes to src/addins/MonoDevelop.XmlEditor/MonoDevelop.XmlEditor.XPath/XPathNodeMatch.cs

  • Committer: Package Import Robot
  • Author(s): Jo Shields
  • Date: 2013-05-12 09:46:03 UTC
  • mto: This revision was merged to the branch mainline in revision 29.
  • Revision ID: package-import@ubuntu.com-20130512094603-mad323bzcxvmcam0
Tags: upstream-4.0.5+dfsg
Import upstream version 4.0.5+dfsg

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src/addins/MonoDevelop.XmlEditor/MonoDevelop.XmlEditor.XPath/XPathNodeMatch.cs
 
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//
 
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// MonoDevelop XML Editor
 
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//
 
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// Copyright (C) 2006 Matthew Ward
 
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//
 
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// Permission is hereby granted, free of charge, to any person obtaining
 
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// a copy of this software and associated documentation files (the
 
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// "Software"), to deal in the Software without restriction, including
 
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// without limitation the rights to use, copy, modify, merge, publish,
 
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// distribute, sublicense, and/or sell copies of the Software, and to
 
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// permit persons to whom the Software is furnished to do so, subject to
 
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// the following conditions:
 
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// 
 
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// The above copyright notice and this permission notice shall be
 
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// included in all copies or substantial portions of the Software.
 
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// 
 
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// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
 
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// EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
 
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// MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
 
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// NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
 
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// LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
 
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// OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
 
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// WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
 
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using System;
 
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using System.Xml;
 
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using System.Xml.XPath;
 
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namespace MonoDevelop.XmlEditor
 
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{
 
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        /// <summary>
 
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        /// Stores an XmlNode and its associated line number and position after an 
 
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        /// XPath query has been evaluated.
 
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        /// </summary>
 
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        public class XPathNodeMatch : IXmlLineInfo
 
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        {
 
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                int? lineNumber;
 
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                int linePosition;
 
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                string value;
 
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                string displayValue;
 
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                XPathNodeType nodeType;
 
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                /// <summary>
 
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                /// Creates an XPathNodeMatch from the navigator which should be position on the
 
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                /// node.
 
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                /// </summary>
 
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                /// <remarks>
 
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                /// We deliberately use the OuterXml when we find a Namespace since the
 
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                /// navigator location returned starts from the xmlns attribute.
 
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                /// </remarks>
 
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                public XPathNodeMatch(XPathNavigator currentNavigator)
 
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                {
 
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                        SetLineNumbers(currentNavigator as IXmlLineInfo);
 
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                        nodeType = currentNavigator.NodeType;
 
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                        switch (nodeType) {
 
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                                case XPathNodeType.Text:
 
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                                        SetTextValue(currentNavigator);
 
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                                        break;
 
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                                case XPathNodeType.Comment:
 
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                                        SetCommentValue(currentNavigator);
 
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                                        break;
 
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                                case XPathNodeType.Namespace:
 
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                                        SetNamespaceValue(currentNavigator);
 
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                                        break;
 
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                                case XPathNodeType.Element:
 
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                                        SetElementValue(currentNavigator);
 
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                                        break;
 
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                                case XPathNodeType.ProcessingInstruction:
 
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                                        SetProcessingInstructionValue(currentNavigator);
 
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                                        break;
 
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                                case XPathNodeType.Attribute:
 
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                                        SetAttributeValue(currentNavigator);
 
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                                        break;
 
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                                default:
 
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                                        value = currentNavigator.LocalName;
 
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                                        displayValue = value;
 
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                                        break;
 
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                        }
 
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                }
 
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                /// <summary>
 
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                /// Line numbers are zero based.
 
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                /// </summary>
 
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                public int LineNumber {
 
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                        get {
 
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                                return lineNumber.GetValueOrDefault(0);
 
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                        }
 
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                }
 
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                /// <summary>
 
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                /// Line positions are zero based.
 
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                /// </summary>
 
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                public int LinePosition {
 
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                        get {
 
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                                return linePosition;
 
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                        }
 
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                }
 
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                public bool HasLineInfo()
 
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                {
 
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                        return lineNumber.HasValue;
 
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                }
 
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                /// <summary>
 
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                /// Gets the text value of the node.
 
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                /// </summary>
 
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                public string Value {
 
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                        get {
 
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                                return value;
 
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                        }
 
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                }
 
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                /// <summary>
 
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                /// Gets the node display value. This includes the angle brackets if it is
 
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                /// an element, for example.
 
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                /// </summary>
 
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                public string DisplayValue {
 
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                        get {
 
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                                return displayValue;
 
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                        }
 
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                }
 
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                public XPathNodeType NodeType {
 
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                        get {
 
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                                return nodeType;
 
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                        }
 
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                }
 
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                void SetElementValue(XPathNavigator navigator)
 
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                {
 
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                        value = navigator.Name;
 
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                        if (navigator.IsEmptyElement) {
 
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                                displayValue = String.Concat("<", value, "/>");
 
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                        } else {
 
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                                displayValue = String.Concat("<", value, ">");
 
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                        }
 
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                }
 
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                void SetTextValue(XPathNavigator navigator)
 
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                {
 
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                        value = navigator.Value;
 
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                        displayValue = value;
 
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                }
 
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                void SetCommentValue(XPathNavigator navigator)
 
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                {
 
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                        value = navigator.Value;
 
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                        displayValue = navigator.OuterXml;
 
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                }
 
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                void SetNamespaceValue(XPathNavigator navigator)
 
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                {
 
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                        value = navigator.OuterXml;
 
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                        displayValue = value;
 
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                }
 
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                void SetProcessingInstructionValue(XPathNavigator navigator)
 
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                {
 
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                        value = navigator.Name;
 
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                        displayValue = navigator.OuterXml;
 
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                }
 
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                void SetAttributeValue(XPathNavigator navigator)
 
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                {
 
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                        value = navigator.Name;
 
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                        displayValue = String.Concat("@", value);
 
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                }
 
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                /// <summary>
 
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                /// Takes one of the xml line number so the numbers are now zero
 
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                /// based instead of one based.
 
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                /// </summary>
 
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                /// <remarks>A namespace query (e.g. //namespace::*) will return
 
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                /// a line info of -1, -1 for the xml namespace. Which looks like
 
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                /// a bug in the XPathDocument class.</remarks>
 
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                void SetLineNumbers(IXmlLineInfo lineInfo)
 
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                {
 
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                        if (lineInfo.HasLineInfo() && lineInfo.LineNumber > 0) {
 
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                                lineNumber = lineInfo.LineNumber - 1;
 
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                                linePosition = lineInfo.LinePosition - 1;
 
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                        }
 
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                }
 
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        }
 
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}