How a Font Can Respect Basic Rules of Arabic Calligraphy

This paper describes formal bases for designing a PostScript dynamic font respecting some basic rules of Arabiccalligraphy. This font will provide, for instance, a vertical curvilinear characters dynamic stretching that depends on theirhorizontal stretching according to the Calligraphic rules. Vertical and horizontal ligatures will also be supported by the proposedfont. The techniques used can be applied in various digital typography contexts such as in typesetting mathematics, to get bigdelimiters for instance. The results presented here give both extensions and corrections of some already adopted techniques.