public IEnumerable<ISearchResult> FindAllForwardOnly(ITextSource document, int offset, int length)
{
var xc = new XPathCollection();
try
{
xc.Add(_xPath);
}
catch (Exception)
{
yield break;
}
using (var reader = new XmlTextReader(document.CreateReader()))
using (var xpathReader = new XPathReader(reader, xc))
{
var lineInfo = xpathReader as IXmlLineInfo;
var doc = (IDocument)document;
ISegment segment;
while (Read(xpathReader))
{
if (xpathReader.Match(0) && xpathReader.NodeType != XmlNodeType.EndElement)
{
segment = null;
try
{
segment = XmlSegment(doc, lineInfo.LineNumber, lineInfo.LinePosition);
}
catch (Exception) { }
if (segment != null && segment.Offset >= offset && segment.EndOffset <= (offset + length))
{
yield return new XPathSearchResult()
{
StartOffset = segment.Offset,
Length = segment.Length
};
}
}
}
}
}
/// <include file='doc\XPathReader.uex' path='docs/doc[@for="XPathReader.XPathReader1"]/*' />
/// <internalonly/>
/// <devdoc>
/// <para>Initializes a new instance of the XPathReader class with the specified XmlNameTable.
/// This constructor is used when creating reader with "new XPathReader(..)"</para>
/// </devdoc>
//
// For class function provides the url, we will construct the
// XmlTextReader to process the URL
//
public XPathReader(TextReader reader, string xpath) : this()
{
this.reader = new XmlTextReader(reader);
xpathCollection = new XPathCollection();
xpathCollection.Add(xpath);
}
/// <include file='doc\XPathReader.uex' path='docs/doc[@for="XPathReader.XmlTextReader1"]/*' />
/// <internalonly/>
/// <devdoc>
/// <para>Initializes a new instance of the XPathReader class with the specified XmlNameTable.
/// This constructor is used when creating reader with "new XPathReader(..)"</para>
/// </devdoc>
public XPathReader(XmlReader reader, XPathCollection xc) : this()
{
xpathCollection = xc;
xc.SetReader = this;
this.reader = reader;
}
/// <include file='doc\XPathReader.uex' path='docs/doc[@for="XPathReader.XPathReader1"]/*' />
/// <internalonly/>
/// <devdoc>
/// <para>Initializes a new instance of the XPathReader class with the specified XmlNameTable.
/// This constructor is used when creating reader with "new XPathReader(..)"</para>
/// </devdoc>
//
// For class function provides the url, we will construct the
// XmlTextReader to process the URL
//
public XPathReader(string url, string xpath) : this()
{
this.reader = new XmlTextReader(url);
xpathCollection = new XPathCollection();
xpathCollection.Add(xpath);
}
/// <include file='doc\XPathReader.uex' path='docs/doc[@for="XPathReader.XPathReader1"]/*' />
/// <internalonly/>
/// <devdoc>
/// <para>Initializes a new instance of the XPathReader class with the specified XmlNameTable.
/// This constructor is used when creating reader with "new XPathReader(..)"</para>
/// </devdoc>
//
// For class function provides the url, we will construct the
// XmlTextReader to process the URL
//
public XPathReader(string url, XPathCollection xc) : this(new XmlTextReader(url), xc)
{
}
/// <include file='doc\XPathReader.uex' path='docs/doc[@for="XPathReader.XPathReader1"]/*' />
/// <internalonly/>
/// <devdoc>
/// <para>Initializes a new instance of the XPathReader class with the specified XmlNameTable.
/// This constructor is used when creating reader with "new XPathReader(..)"</para>
/// </devdoc>
//
// For class function provides the url, we will construct the
// XmlTextReader to process the URL
//
public XPathReader(TextReader reader, string xpath) : this()
{
this.reader = new XmlTextReader(reader);
xpathCollection = new XPathCollection();
xpathCollection.Add(xpath);
}
/// <include file='doc\XPathReader.uex' path='docs/doc[@for="XPathReader.XPathReader1"]/*' />
/// <internalonly/>
/// <devdoc>
/// <para>Initializes a new instance of the XPathReader class with the specified XmlNameTable.
/// This constructor is used when creating reader with "new XPathReader(..)"</para>
/// </devdoc>
//
// For class function provides the url, we will construct the
// XmlTextReader to process the URL
//
public XPathReader(string url, string xpath) : this(){
this.reader = new XmlTextReader(url);
xpathCollection = new XPathCollection();
xpathCollection.Add(xpath);
}
/// <include file='doc\XPathReader.uex' path='docs/doc[@for="XPathReader.XmlTextReader1"]/*' />
/// <internalonly/>
/// <devdoc>
/// <para>Initializes a new instance of the XPathReader class with the specified XmlNameTable.
/// This constructor is used when creating reader with "new XPathReader(..)"</para>
/// </devdoc>
public XPathReader(XmlReader reader, XPathCollection xc) : this() {
xpathCollection = xc;
xc.SetReader = this;
this.reader = reader;
}
/// <include file='doc\XPathReader.uex' path='docs/doc[@for="XPathReader.XPathReader1"]/*' />
/// <internalonly/>
/// <devdoc>
/// <para>Initializes a new instance of the XPathReader class with the specified XmlNameTable.
/// This constructor is used when creating reader with "new XPathReader(..)"</para>
/// </devdoc>
//
// For class function provides the url, we will construct the
// XmlTextReader to process the URL
//
public XPathReader(string url, XPathCollection xc) : this(new XmlTextReader(url), xc)
{
}
