internal static string ChangeFont <TFont, TGlyph>(this TypesettingContext <TFont, TGlyph> context, string input, FontStyle outputFontStyle)
            where TFont : IFont <TGlyph>
        {
            var changer = context.FontChanger;

            return(changer.ChangeFont(input, outputFontStyle));
        }
 public static MathListDisplay<TFont, TGlyph> CreateLine<TFont, TGlyph>(this TypesettingContext<TFont, TGlyph> context, IMathList list, TFont font, LineStyle style)
   where TFont: MathFont<TGlyph> {
   return Typesetter<TFont, TGlyph>.CreateLine(list, font, context, style);
   }