/// <summary>
/// Strips indentation, adds &nbsp; for multiple whitespaces and ensures all lines end with a CRLF.
/// </summary>
private static string NormalizeText(string text)
{
string normalized = StripIndentation(text);
normalized = AddNbsp(normalized);
normalized = LineEndingHelper.Normalize(normalized, LineEnding.CRLF);
return(normalized);
}
public static string RtfEscape(string str)
{
str = LineEndingHelper.Normalize(str, LineEnding.LF);
StringBuilder output = new StringBuilder((int)(str.Length * 1.1));
foreach (char c in str)
{
output.Append(RtfEscape(c));
}
return(output.ToString());
}
public static string CompressExcessWhitespace(string str)
{
// RegexOptions.Multiline only works with \n, not \r\n
str = LineEndingHelper.Normalize(str, LineEnding.LF);
// trim lines made up of only spaces and tabs (but keep the line breaks)
//str = Regex.Replace(str, @"[ \t]+(?=\r\n|$)", "");
str = Regex.Replace(str, @"[ \t]+$", "", RegexOptions.Multiline);
//str = Regex.Replace(str, @"(?<=^|\n)[ \t]+(?=\r\n|$)", "");
str = str.TrimStart('\n');
str = str.TrimEnd('\n');
str = Regex.Replace(str, @"\n{3,}", "\n\n");
str = LineEndingHelper.Normalize(str, LineEnding.CRLF);
return(str);
}
