Re: [css-text] Clusters for letter spacing in Thai and other complex scripts

On 27 September 2013 11:05, James Clark <> wrote:

> I tried to explain in my last message why I thought tailoring the
> definition of extended grapheme cluster was not the right approach, and
> suggested an alternative approach.  Let me try to put it more succinctly:
> the clusters of glyphs between which Thai/Lao letter-spacing inserts space
> are different from the clusters of glyph corresponding to extended grapheme
> clusters.  The spec for letter-spacing should allow for the fact that for
> some scripts the typographically correct points to insert letter space do
> not correspond to boundaries between extended grapheme clusters.


Andrew Cunningham
Project Manager, Research and Development
(Social and Digital Inclusion)
Public Libraries and Community Engagement
State Library of Victoria
328 Swanston Street
Melbourne VIC 3000

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Received on Friday, 27 September 2013 01:56:22 UTC