Last call for ISO 15924-based updates

Peter Constable petercon at microsoft.com
Wed Mar 18 19:24:47 CET 2009


The Unicode standard provides character-property data that gets consumed in software implementations for a variety of types of processing: text display, regular expression processing, ... One of the character properties used in such implementations is a script. Unicode needs a ID for use in their character property data to indicate the script of every character, and that includes the need to declare of _certain_ characters that they do not have an inherent script but rather inherit it from a different character in the usage context.


Peter

From: ietf-languages-bounces at alvestrand.no [mailto:ietf-languages-bounces at alvestrand.no] On Behalf Of CE Whitehead
Sent: Wednesday, March 18, 2009 9:15 AM
To: ietf-languages at iana.org
Subject: RE: Last call for ISO 15924-based updates


Hi, Addision; thanks, however I am still confused because if unicode reconizes that diacritics inherit script from the surrounding characters, the tag seems unneeded, but forget it; it's not important.  A tag would never hurt in this case. . .
 --C. E. Whiterhead
cewcathar at hotmail.com<mailto:cewcathar at hotmail.com>
From: addison at amazon.com
To: cewcathar at hotmail.com; ietf-languages at iana.org
Date: Wed, 18 Mar 2009 08:53:56 -0700
Subject: RE: Last call for ISO 15924-based updates

> The tags in ISO 15924 are used to identify what script a certain character has in Unicode's list of characters. Unicode characters with a script property of Zinh inherit their script FROM THE PRECEDING CHARACTER in a piece of text. They don't inherit it from the script tag.

> Addison

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