#region License and Copyright
/*
* Dotnet Commons Xml
*
*
* This library is free software; you can redistribute it and/or modify it
* under the terms of the GNU Lesser General Public License as published by
* the Free Software Foundation; either version 2.1 of the License, or
* (at your option) any later version.
*
* This library is distributed in the hope that it will be useful, but
* WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
* or FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public License
* for more details.
*
* You should have received a copy of the GNU Lesser General Public License
* along with this library; if not, write to the
* Free Software Foundation, Inc.,
* 59 Temple Place,
* Suite 330,
* Boston,
* MA 02111-1307
* USA
*
*/
#endregion
using System;
using System.Collections;
using System.Collections.Specialized;
using System.Diagnostics;
using System.IO;
using System.Reflection;
using System.Text;
using System.Text.RegularExpressions;
using System.Xml;
using System.Xml.Xsl;
using System.Xml.Serialization;
//using Dotnet.Commons.Reflection;
namespace Dotnet.Commons.Xml
{
///
/// <summary>
/// This utility class contains wrapper functions that help to ease the handling and
/// manipulation of Xml documents, such as adding an element, adding an attribute
/// to an element, copying and cloning of nodes, etc.
///
/// </summary>
///
public abstract class XmlUtils
{
/// -----------------------------------------------------------
/// <summary>
/// Remove empty tags in the Xml string
/// </summary>
/// <param name="sXML"></param>
/// <returns></returns>
/// <remarks>Thanks to http://dotnet.editme.com/codeCleanXML</remarks>
/// -----------------------------------------------------------
public static string RemoveEmptyTags(string sXML)
{
System.Text.StringBuilder sb = new StringBuilder();
sb.Append("<?xml version=\"1.0\" encoding=\"UTF-8\"?>");
sb.Append("<xsl:stylesheet ");
sb.Append(" version=\"1.0\" ");
sb.Append(" xmlns:msxsl=\"urn:schemas-microsoft-com:xslt\"");
sb.Append(" xmlns:xsl=\"http://www.w3.org/1999/XSL/Transform\">");
sb.Append(" <xsl:output method=\"xml\" version=\"1.0\" encoding=\"UTF-8\"/>");
sb.Append(" <!-- Whenever you match any node or any attribute -->");
sb.Append(" <xsl:template match=\"node()|@*\">");
sb.Append(" <!-- Copy the current node -->");
sb.Append(" <xsl:if test=\"normalize-space(.) != '' or normalize-space(./@*) != '' \">");
sb.Append(" <xsl:copy>");
sb.Append(" <!-- Including any attributes it has and any child nodes -->");
sb.Append(" <xsl:apply-templates select=\"@*|node()\"/>");
sb.Append(" </xsl:copy>");
sb.Append(" </xsl:if>");
sb.Append(" </xsl:template>");
sb.Append("</xsl:stylesheet>");
return transXMLStringThroughXSLTString(sXML, sb.ToString());
}
private static string transXMLStringThroughXSLTString(string sXML, string sXSLT)
{
//This is the logic of the application.
XslCompiledTransform objTransform = new XslCompiledTransform();
StringReader xmlStream = new StringReader(sXML);
XmlReader xmlReader = new XmlTextReader(xmlStream);
StringReader stream = new StringReader(sXSLT);
XmlReader xmlReaderXslt = new XmlTextReader(stream);
objTransform.Load(xmlReaderXslt, null, null);
StringWriter objStream = new StringWriter();
objTransform.Transform(xmlReader, null, objStream);
return objStream.ToString().Replace(@"encoding=""utf-16""?>", @"encoding=""utf-8""?>");
}
}
}
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