Remove a comment in a string - CSharp System

CSharp examples for System:String Strip

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Description

Remove a comment in a string

Demo Code


using System.Globalization;
using System.Collections;
using System.Text;
using System;/*w ww  .  j  a  v  a  2  s. c o  m*/

public class Main{
        /// <summary>
		/// Remove a comment in a string
		/// </summary>
		public static string RemoveComment (string bufferToManage, string commentStartTag)
		{
			if (bufferToManage  == null)			throw new NolmeArgumentNullException ();
			if (commentStartTag == null)			throw new NolmeArgumentNullException ();

			string	ResultBuffer, ResultBufferTrim;
			int		QuoteStart, QuoteEnd, iQuote;
			int		iCommentStart;

			// Check if a comment is inserted
			iCommentStart = bufferToManage.IndexOf (commentStartTag);
			if (iCommentStart == -1)
			{
				// No comment inside, return same string
				ResultBuffer = bufferToManage;
			}
			else
			{
				// A comment tag has been found but it may be inside a string
				QuoteStart = bufferToManage.IndexOf ("\"");
				if (QuoteStart == -1)
				{
					// Return from [0..iCommentStart[
					// Comment is at  iCommentStart with length bufferToManage.Length-iCommentStart
					ResultBuffer = bufferToManage.Substring (0, iCommentStart);
				}
				else
				{
					// Check before if quote start AFTER comment start
					if (iCommentStart < QuoteStart)
					{
						// Return from [0..iCommentStart[
						// Comment is at  iCommentStart with length bufferToManage.Length-iCommentStart
						ResultBuffer = bufferToManage.Substring (0, iCommentStart);
					}
					else
					{
						// String & comment both exists, check if last commentStartTag is after last quote so it's a real comment to end of line
						QuoteEnd = bufferToManage.IndexOf ("\"", QuoteStart+1);
						if (QuoteEnd == -1)
						{
							// [ERROR] String not well terminated, assume full string
							ResultBuffer = bufferToManage + "\"";
						}
						else
						{
							iQuote			= bufferToManage.LastIndexOf ("\"");
							iCommentStart	= bufferToManage.LastIndexOf (commentStartTag);
							if (iCommentStart > iQuote)
							{
								// Remove this comment
								ResultBuffer = bufferToManage.Substring (0, iCommentStart);
							}
							else
							{
								// comment tag is inside string, don't modify
								ResultBuffer = bufferToManage;
							}
						}
					}
				}
			}

			// Last stage, remove start spaces & stabs
			ResultBufferTrim = ResultBuffer.Trim ();
			return ResultBufferTrim;
		}
}

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