On Mon, 10 Mar 2014 09:04:06 +0700 James Clark <[email protected]> wrote:
> This > makes me wonder whether it would be better/more robust to map an IETF > language tag to an ordered list of OT langsys tags, and then HB would > use the first langsys tag that the font supports. However, I am not > sure it is worth the effort/complication, since most of these cases > are pretty obscure, and it's easy and efficient for fonts to make > multiple langsys tags behave the same. So what happens when a tag is assigned to a language? Should the assignment of a tag for Northeastern Thai suddenly result in NE Thai text in the Tai Tham script being rendered in a Northern Thai style rather than a Lao style, just because a Tai Tham font caters for Northern Thai (NTA) as default but has Lao (LAO) features for when the text is tagged as Lao? I appreciate it could get silly - I believe NE Thai should render Latin script e-mail addresses using the same typography as is normally used in Thai, rather than following any Lao habits, which would be more likely to be based on French habits. Richard. _______________________________________________ HarfBuzz mailing list [email protected] http://lists.freedesktop.org/mailman/listinfo/harfbuzz
