private string GetFirstLetterOfLastFlag()
{
int currentArgumentIndex = ArgumentHelper.GetArgumentIndexAtOffset(Document, CaretOffset);
if (currentArgumentIndex == -1 || currentArgumentIndex == 0)
{
return(null);
}
string prevArgument = ArgumentHelper.GetArgumentFromIndex(Document, CaretOffset, currentArgumentIndex - 1).Trim();
if (!prevArgument.Contains("_"))
{
return(null);
}
if (prevArgument.Contains("="))
{
prevArgument.Split('=').Last().Trim();
}
return(prevArgument[0].ToString());
}