/*
 * Erstellt mit SharpDevelop.
 * Benutzer: 001142709
 * Datum: 15.05.2019
 * Zeit: 08:56
 * 
 * Sie können diese Vorlage unter Extras > Optionen > Codeerstellung > Standardheader ändern.
 */
using System;

namespace FixLineLenght
{
	/// <summary>
	/// Description of FixLineLenght.
	/// </summary>
	public static class FixLineLenght
	{
		/// <summary>
		/// Formats a string with a fixed line length.
		/// </summary>
		static FixLineLenght()
		{
		}
		
		/// <summary>
		/// Formats a string with a fixed line length.
		/// </summary>
		/// <param name="text">String to be formatted.</param>
		/// <param name="lineLenght">Maximum line length</param>
		/// <returns></returns>
		public static string Format(string text, int lineLenght)
		{
			int pos = 0;
			int spacePos = 0;
			string character = "";
			string temp = "";
			string result = "";
			
			while (text.Length > 0)
			{
				if (text.Length <= lineLenght)
				{
					result = String.Concat(result, text);
					text = "";
				}
				else
				{
					while (pos <= lineLenght)
					{
						character = text.Remove(0, pos).Remove(1);

                        //Bei einem Zeilenumbruch oder Wagenrücklauf eine neu Zeile beginnen
                        if (character == "\n" || character == "\r")
                        {
                            spacePos = text.IndexOf("\n") + 1;
                            break;
                        }

                        if (character == " ")
						{
							spacePos = pos + 1;
						}
						
						pos ++;
					}
					
					temp = text.Remove(spacePos - 1);
                    if (temp.EndsWith("\n") || temp.EndsWith("\r"))
                    {
                        temp = temp.Remove(temp.Length - 1);// Ein schon enthaltenes '\n' oder '\r' am Ende de temporären Strings muss entfernt werden
                    }
                    text = text.Remove(0, spacePos);
					result = String.Concat(result, temp, "\r\n");
					pos = 0;
					spacePos = 0;
				}
			}
			
			return result;
		}
	}
}