using System;
using System.Web;
using System.IO;

   class MyNewClass
   {
      public static void Main()
      {
         String myString;
         Console.WriteLine("Enter a string having '&' or '"'  in it: ");
         myString=Console.ReadLine();
         String myEncodedString;
         // Encode the string.
         myEncodedString = HttpUtility.HtmlEncode(myString);
         Console.WriteLine("HTML Encoded string is "+myEncodedString);
         StringWriter myWriter = new StringWriter();
         // Decode the encoded string.
         HttpUtility.HtmlDecode(myEncodedString, myWriter);
         Console.Write("Decoded string of the above encoded string is "+myWriter.ToString());
      }
   }

   
     

//
// (C) Copyright 2009 Irantha Suwandarathna (irantha@gmail.com)
// All rights reserved.
//

/* Copyright (c) 2001-2008, The HSQL Development Group
* All rights reserved.
*
* Redistribution and use _in source and binary forms, with or without
* modification, are permitted provided that the following conditions are met:
*
* Redistributions of source code must retain the above copyright notice, this
* list of conditions and the following disclaimer.
*
* Redistributions _in binary form must reproduce the above copyright notice,
* this list of conditions and the following disclaimer _in the documentation
* and/or other materials provided with the distribution.
*
* Neither the name of the HSQL Development Group nor the names of its
* contributors may be used to endorse or promote products derived from this
* software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS “AS IS”
* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL HSQL DEVELOPMENT GROUP, HSQLDB.ORG,
* OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
* EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
* PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
* LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
* ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
* SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/

using System;
using System.Text;
using System.Collections.Generic;

namespace EffiProz.Core.Lib
{

/** Provides a collection of convenience methods for processing and
* creating objects with String value components.
*
* @author fredt@users
* @author boucherb@users
* @version 1.7.2
* @since 1.7.0
*/
public class StringUtil
{
/**
* Returns a string with non alphanumeric chars converted to the
* substitute character. A digit first character is also converted.
* By sqlbob@users
* @param source string to convert
* @param substitute character to use
* @return converted string
*/
public static string toLowerSubset(string source, char substitute)
{

int len = source.Length;
StringBuilder src = new StringBuilder(len);
char ch;

for (int i = 0; i < len; i++) { ch = source[(i)]; if (!Char.IsLetterOrDigit(ch)) { src.Append(substitute); } else if ((i == 0) && Char.IsDigit(ch)) { src.Append(substitute); } else { src.Append(Char.ToLower(ch)); } } return src.ToString(); } } } [/csharp]

   
 
//http://isotopescreencapture.codeplex.com/
//The MIT License (MIT)
namespace Isotope.Xml.Extensions
{
    public static class XmlNodeExtensions
    {
        public static string SelectSingleInnerText(this System.Xml.XmlNode node, string xpath )
        {
            return node.SelectSingleInnerText(xpath, null);
        }

        public static string SelectSingleInnerText(this System.Xml.XmlNode node, string xpath, System.Xml.XmlNamespaceManager nsmgr)
        {
            System.Xml.XmlNode tnode = node.SelectSingleNode(xpath,nsmgr);
            if (tnode == null)
            {
                return null;
            }
            return tnode.InnerText;
        }
    }
}

   
     

#region License
// Copyright (c) 2007 James Newton-King
//
// Permission is hereby granted, free of charge, to any person
// obtaining a copy of this software and associated documentation
// files (the “Software”), to deal in the Software without
// restriction, including without limitation the rights to use,
// copy, modify, merge, publish, distribute, sublicense, and/or sell
// copies of the Software, and to permit persons to whom the
// Software is furnished to do so, subject to the following
// conditions:
//
// The above copyright notice and this permission notice shall be
// included in all copies or substantial portions of the Software.
//
// THE SOFTWARE IS PROVIDED “AS IS”, WITHOUT WARRANTY OF ANY KIND,
// EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES
// OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
// NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT
// HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY,
// WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
// FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
// OTHER DEALINGS IN THE SOFTWARE.
#endregion

using System;
using System.Collections.Generic;
using System.IO;
using System.Linq;
using System.Text;
using System.Text.RegularExpressions;

namespace Newtonsoft.Utilities.Text
{
public static class StringExtensions
{

///

/// The value. ///
public static string EnsureCarriageReturns(this string value)
{
return Regex.Replace(value, “(?

   
 

#region License
// Copyright (c) 2007 James Newton-King
//
// Permission is hereby granted, free of charge, to any person
// obtaining a copy of this software and associated documentation
// files (the "Software"), to deal in the Software without
// restriction, including without limitation the rights to use,
// copy, modify, merge, publish, distribute, sublicense, and/or sell
// copies of the Software, and to permit persons to whom the
// Software is furnished to do so, subject to the following
// conditions:
//
// The above copyright notice and this permission notice shall be
// included in all copies or substantial portions of the Software.
//
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
// EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES
// OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
// NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT
// HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY,
// WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
// FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
// OTHER DEALINGS IN THE SOFTWARE.
#endregion

using System;
using System.Collections.Generic;
using System.IO;
using System.Linq;
using System.Text;
using System.Text.RegularExpressions;


namespace Newtonsoft.Utilities.Text
{
  public static class StringExtensions
  {


    /// <summary>
    /// Truncates the specified string.
    /// </summary>
    /// <param name="s">The string to truncate.</param>
    /// <param name="maximumLength">The maximum length of the string before it is truncated.</param>
    /// <returns></returns>
    public static string Truncate(this string s, int maximumLength)
    {
      return Truncate(s, maximumLength, "...");
    }

    /// <summary>
    /// Truncates the specified string.
    /// </summary>
    /// <param name="s">The string to truncate.</param>
    /// <param name="maximumLength">The maximum length of the string before it is truncated.</param>
    /// <param name="suffix">The suffix to place at the end of the truncated string.</param>
    /// <returns></returns>
    public static string Truncate(this string s, int maximumLength, string suffix)
    {
      if (suffix == null)
        throw new ArgumentNullException("suffix");

      if (maximumLength <= 0)
        throw new ArgumentException("Maximum length must be greater than zero.", "maximumLength");

      int subStringLength = maximumLength - suffix.Length;

      if (subStringLength <= 0)
        throw new ArgumentException("Length of suffix string is greater or equal to maximumLength");

      if (s != null &amp;&amp; s.Length > maximumLength)
      {
        string truncatedString = s.Substring(0, subStringLength);
        // incase the last character is a space
        truncatedString = truncatedString.TrimEnd();
        truncatedString += suffix;

        return truncatedString;
      }
      else
      {
        return s;
      }
    }

  }
}

   
     

   
 

#region License
// Copyright (c) 2007 James Newton-King
//
// Permission is hereby granted, free of charge, to any person
// obtaining a copy of this software and associated documentation
// files (the "Software"), to deal in the Software without
// restriction, including without limitation the rights to use,
// copy, modify, merge, publish, distribute, sublicense, and/or sell
// copies of the Software, and to permit persons to whom the
// Software is furnished to do so, subject to the following
// conditions:
//
// The above copyright notice and this permission notice shall be
// included in all copies or substantial portions of the Software.
//
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
// EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES
// OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
// NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT
// HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY,
// WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
// FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
// OTHER DEALINGS IN THE SOFTWARE.
#endregion

using System;
using System.Collections.Generic;
using System.IO;
using System.Linq;
using System.Text;
using System.Text.RegularExpressions;


namespace Newtonsoft.Utilities.Text
{
  public static class StringExtensions
  {

    public static string RemoveHtml(this string s)
    {
      return RemoveHtmlInternal(s, null);
    }

    public static string RemoveHtml(this string s, IList<string> removeTags)
    {
      if (removeTags == null)
        throw new ArgumentNullException("removeTags");

      return RemoveHtmlInternal(s, removeTags);
    }

    private static string RemoveHtmlInternal(string s, IList<string> removeTags)
    {
      List<string> removeTagsUpper = null;

      if (removeTags != null)
      {
        removeTagsUpper = new List<string>(removeTags.Count);

        foreach (string tag in removeTags)
        {
          removeTagsUpper.Add(tag.ToUpperInvariant());
        }
      }

      Regex anyTag = new Regex(@"<&#91;/&#93;{0,1}s*(?<tag>w*)s*(?<attr>.*?=[&#039;""].*?[""&#039;])*?s*[/]{0,1}>", RegexOptions.Compiled);

      return anyTag.Replace(s, delegate(Match match)
      {
        string tag = match.Groups["tag"].Value.ToUpperInvariant();

        if (removeTagsUpper == null)
          return string.Empty;
        else if (removeTagsUpper.Contains(tag))
          return string.Empty;
        else
          return match.Value;
      });
    }
  }
}

   
     

   
 

#region License
// Copyright (c) 2007 James Newton-King
//
// Permission is hereby granted, free of charge, to any person
// obtaining a copy of this software and associated documentation
// files (the "Software"), to deal in the Software without
// restriction, including without limitation the rights to use,
// copy, modify, merge, publish, distribute, sublicense, and/or sell
// copies of the Software, and to permit persons to whom the
// Software is furnished to do so, subject to the following
// conditions:
//
// The above copyright notice and this permission notice shall be
// included in all copies or substantial portions of the Software.
//
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
// EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES
// OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
// NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT
// HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY,
// WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
// FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
// OTHER DEALINGS IN THE SOFTWARE.
#endregion

using System;
using System.Collections.Generic;
using System.IO;
using System.Linq;
using System.Text;
using System.Text.RegularExpressions;


namespace Newtonsoft.Utilities.Text
{
  public static class StringExtensions
  {

    /// <summary>
    /// Replaces the new lines in a string with the given replacement characters.
    /// </summary>
    /// <param name="s">The string to replace new lines in.</param>
    /// <param name="replacement">The replacement characters.</param>
    /// <returns></returns>
    public static string ReplaceNewLines(this string s, string replacement)
    {
      StringReader sr = new StringReader(s);
      StringBuilder sb = new StringBuilder();

      bool first = true;

      string line;
      while ((line = sr.ReadLine()) != null)
      {
        if (first)
          first = false;
        else
          sb.Append(replacement);

        sb.Append(line);
      }

      return sb.ToString();
    }
  }
}