Remove the tail from text non destructive, ie leaves the text as it was case sensitive - CSharp System

CSharp examples for System:String Case

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Description

Remove the tail from text non destructive, ie leaves the text as it was case sensitive

Demo Code


using System.Text;
using System;// w ww.j  a v a  2  s  .co  m

public class Main{
        /// <summary>
        ///   Remove the tail from text
        /// 
        ///   non destructive, ie leaves the text as it was
        ///   case sensitive
        /// </summary>
        /// <param name = "text">Text string</param>
        /// <param name = "uptoItem">Tail cut off point</param>
        /// <returns>Tail only</returns>
        public static string Tail(this string text, string uptoItem)
        {
            return Tail(text, uptoItem, StringComparison.CurrentCulture);
        }
        /// <summary>
        ///   Remove the tail from text
        /// 
        ///   non destructive, ie leaves the text as it was
        /// </summary>
        /// <param name = "text">Text string</param>
        /// <param name = "uptoItem">Tail cut off point</param>
        /// <param name = "comparisonType">String Comparison</param>
        /// <returns>Tail only</returns>
        public static string Tail(this string text, string uptoItem, StringComparison comparisonType)
        {
            var position = text.LastIndexOf(uptoItem, comparisonType);
            string tailText;

            if (position == -1)
            {
                tailText = text;
            }
            else
            {
                tailText = text.Substring(position + uptoItem.Length);
            }

            return tailText;
        }
        /// <summary>
        ///   Remove the tail from text
        /// 
        ///   destructive, ie leaving only the body in the text variable
        ///   case sensitive
        /// </summary>
        /// <param name = "text">Text string</param>
        /// <param name = "uptoItem">Tail cut off point</param>
        /// <returns>Tail only</returns>
        public static string Tail(ref string text, string uptoItem)
        {
            return Tail(ref text, uptoItem, StringComparison.CurrentCulture);
        }
        /// <summary>
        ///   Remove the tail from text
        /// 
        ///   destructive, ie leaving only the body in the text variable
        /// </summary>
        /// <param name = "text">Text string</param>
        /// <param name = "uptoItem">Tail cut off point</param>
        /// <param name = "comparisonType">String Comparison</param>
        /// <returns>Tail only</returns>
        public static string Tail(ref string text, string uptoItem, StringComparison comparisonType)
        {
            var position = text.LastIndexOf(uptoItem, comparisonType);
            string tailText;

            if (position == -1)
            {
                tailText = text;
                text = "";
            }
            else
            {
                tailText = text.Substring(position + uptoItem.Length);
                text = text.Substring(0, position);
            }

            return tailText;
        }
}

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