[css-writing-modes] 9.1.3 Compression Rules


> Example 20 
> For example, a simple OpenType-based implementation might compress 
> the text as follows: 
> 1. Enable 1/n-width glyphs for combined text of n characters. 
> (I.e. Use OpenType hwid for 2 characters, twid for 3 characters, 
> etc.) Note that the number of characters ≠ number of Unicode 
> codepoints! 
> 2. Horizontally scale the result to 1em if it is not yet 1em or narrower. 

In this description, "or narrower" in the last sentence seems a mistake.
Narrower text in tate-chu-yoko has no problem and should not scale to 1em,
nor change to full-width glyph for 1 character.
(Clarify n ≥ 2 in "Enable 1/n-width glyphs…")

Shinyu Murakami
Antenna House

Received on Saturday, 1 February 2014 10:34:22 UTC