Microsoft.VisualStudio.Project.TokenProcessor.IsValidIdentifierStartChar C# (CSharp) Method

        protected static bool IsValidIdentifierStartChar(char c)
        {
            if(!IsValidIdentifierChar(c))
            {
                return false;
            }
            if((c >= '0') && (c <= '9'))
            {
                return false;
            }

            return true;
        }