Get Relative Path

   
 
#region License and Copyright
/* -------------------------------------------------------------------------
 * Dotnet Commons IO
 *
 *
 * 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.Globalization;
using System.IO;

namespace Dotnet.Commons.IO
{
  
  ///  
  /// <summary>  
  /// This class provides basic facilities for manipulating files and file paths.
    /// 
    /// <h3>File-related methods</h3>
    /// There are methods to 
    /// <list type="bullet">
    ///     <item>copy a file to another file,</item>
    ///     <item>compare the content of 2 files,</item>
    ///     <item>delete files using the wildcard character,</item>
    ///     <item>etc</item>
    /// </list>
  /// </summary>
  ///     
  public sealed class FileUtils
  {
        /// ---------------------------------------------------------------
        /// <summary>
        /// Get Relative Path
        /// </summary>
        /// <param name="rootPath"></param>
        /// <param name="fullPath"></param>
        /// <returns></returns>
        /// <remarks>Based on Turtle.Lib.Utilities.FileUtils</remarks>
        /// ---------------------------------------------------------------
        public static string GetRelativePath(string rootPath, string fullPath)
        {
            if (String.IsNullOrEmpty(rootPath) || String.IsNullOrEmpty(fullPath))
            {
                return null;
            }
            else if (fullPath.Equals(rootPath))
            {
                return string.Empty;
            }
            else if (fullPath.Contains(rootPath + ""))
            {
                return fullPath.Substring(rootPath.Length + 1);
            }
            else
            {
                return null;
            }
        }
    }
}