- From: John Hudson <tiro@tiro.com>
- Date: Fri, 30 Oct 2009 10:22:08 -0700
- To: "Martin J. Dürst" <duerst@it.aoyama.ac.jp>
- CC: "Adam Twardoch (List)" <list.adam@twardoch.com>, Jonathan Kew <jonathan@jfkew.plus.com>, Stephen Zilles <szilles@adobe.com>, Håkon Wium Lie <howcome@opera.com>, www-style <www-style@w3.org>, www-font <www-font@w3.org>, LTRU Working Group <ltru@ietf.org>
Martin J. Dürst wrote: > HTML lang and XML xml:lang use BCP 47 (http://tools.ietf.org/html/bcp47, > formerly RFC 1766/3066/4646) tags, not ISO 639 directly.... It should be noted that 'language system' in the context of OpenType Layout is a misnomer, because that these tags actually represent are typographic conventions -- most obviously, culturally preferred glyph shapes --, which are very often identified with language use but not always or necessarily. This is why OTL language system tagging does not use one of the two or three letter language code standards: the expectation was always that some sets of typographic conventions would not be mappable to languages or, as Adam notes, to might map to multiple languages, or, indeed, that some users of a particular language would want to employ 'language system' conventions of another language. I agree with Adam that it is desirable to have a mechanism to directly address OTL language system tags for display independent of language tagging of content. JH
Received on Friday, 30 October 2009 17:23:00 UTC