[Webkit-unassigned] [Bug 110230] [harfbuzz] Always pass correct text direction to HarfBuzz

[bugzilla-daemon at webkit.org]

https://bugs.webkit.org/show_bug.cgi?id=110230


Glenn Adams <glenn at skynav.com> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
                 CC|                            |glenn at skynav.com




--- Comment #1 from Glenn Adams <glenn at skynav.com>  2013-02-19 09:48:58 PST ---
(In reply to comment #0)
> FWIW, we should *always* pass the correct direction, script, and language (if known) to harfbuzz.

How are you defining "correct"? Do you have a counter example showing the passing of an "incorrect" direction, script, or language?

Since script is not specified by the author and the HTML5 et al specs do not formally define an algorithm for mapping some sequence of text to script, then how are you defining "correct" in this regard?

How are you dealing with cases where some font formats define multiple values for "script" tags based on different versions of the font technology? For example, see [1] (script tag 'dev2' with post-2005 specifications) versus [2][3] (script tag 'deva' with pre-2005 implementations):

[1] http://www.microsoft.com/typography/OpenTypeDev/devanagari/intro.htm
[2] http://lb1.www.ms.akadns.net/typography/otfntdev/devanot/
[3] http://lb1.www.ms.akadns.net/typography/otfntdev/devanot/appen.htm

-- 
Configure bugmail: https://bugs.webkit.org/userprefs.cgi?tab=email
------- You are receiving this mail because: -------
You are the assignee for the bug.