Re: Special Type Sorts Tray 2001

[Peter_Constable]

Doug Ewell wrote:

>You might start by checking existing fonts, especially those shipped with
>major operating systems, to see what PUA code points are commonly used
>internally for glyphs not associated with a standard Unicode character.  

Fonts that are designed to work with advanced rendering technologies and that contain presentation-form glyphs such as a ct-ligature do not have to encode those glyphs in the PUA. The transformations that convert sequences of characters into sequences of positioned glyphs are all done entirely in terms of glyph identifiers (such as Postscript names), which are purely a font-internal thing and have nothing whatsoever to do with character encoding.



- Peter


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Peter Constable

Non-Roman Script Initiative, SIL International
7500 W. Camp Wisdom Rd., Dallas, TX 75236, USA
Tel: +1 972 708 7485
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