[MPEG-OTSPEC] [EXTERNAL] Re: Cmap format to map 1 char to multiple glyphs?

[John Hudson]

On 2023-12-21 10:00 am, Peter Constable wrote:
> It seems to me there’d at least be a compatibility boundary: newer 
> fonts with 1:m cmap mappings wouldn’t produce desired results in older 
> software unless the same effect were also implemented in GSUB lookups.

Backwards compatibility should be a choice of font makers, not a 
restriction applied on the font format.

JH


-- 

John Hudson
Tiro Typeworks Ltd    www.tiro.com

Tiro Typeworks is physically located on islands
in the Salish Sea, on the traditional territory
of the Snuneymuxw and Penelakut First Nations.

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