public void InsertAt(int offset, char text, ITextDocumentFilterChain bypass)
{
if (rules.IsLineBreak('\0', text) == LineBreakType.None)
{
bypass.InsertAt(offset, text);
}
}
public static bool IsValidCursorPosition(this ITextProcessingRules rules, char prev, char curr)
{
return(rules.IsLineBreak(prev, curr) == LineBreakType.None);
}