From: Peter Kirk (email@example.com)
Date: Mon Nov 10 2003 - 10:40:49 EST
Some issues with TR14:
1) The version linked to from
http://www.unicode.org/versions/Unicode4.0.0/ is an old version,
2) I note from the latest version of TR14
(http://www.unicode.org/reports/tr14/) and the line breaking data
(http://www.unicode.org/Public/UNIDATA/LineBreak.txt) that the
characters 200C-200F, RLM/LRM/ZWJ/ZWNJ, have line breaking class CM.
This has the rather peculiar consequence that a space followed by any of
these characters is treated as ID, and so there is no line break
opportunity at the beginning of the word. This might be desirable with
ZWJ if taken as requesting some kind of ligature of the space and the
following character. But it seems highly undesirable with RLM and LRM.
These may be used at the beginning of a "word" made up of characters of
undefined directionality, to ensure that it is rendered with the
intended directionality even when separated from its context. But the
line break before such "words" should not be prohibited.
-- Peter Kirk firstname.lastname@example.org (personal) email@example.com (work) http://www.qaya.org/
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