Unicode of Death 2.0

Philippe Verdy via Unicode unicode at unicode.org
Sun Feb 18 07:13:22 CST 2018

20But any operation in OpenType that requires reordering requires a glyphs
buffer. This could even apply to Latin if Microsoft really intends to
support normalization (i.e. canonical equivalences) in its own USE engine
(for now it does not) because it would also require a glyphs buffer to
allow correct reordering of glyphs (according to their properties, notably
for "beforebase", or for special placement of some diacritics such as the
cedilla that moves from "belowbase" to "abovebase" when the base is the
letter "g").
Similar complex shaping features may also exist for rendering Latin
Fraktur, or Latin medieval texts... Latin is also a very complex script
(probably much more than even most indic scripts), as it has really a lot
of contextual "features".

Complex shaping is also needed for more correct handling of the classic
cursive style, or decorated "swash" styles ! Now with the introduction of
"variable fonts" the complexity is increasing (think about hinting, or
kerning, and how some glyphs may need non-linear with breaks for example
with variable weights).

The Microsoft USE engine is still in work, and OpenType will also need
major updates to support more scripts (some scripts are still only partly
suppported, such as Lana).
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