From: Michael Everson (firstname.lastname@example.org)
Date: Fri Nov 30 2007 - 15:44:07 CST
At 13:16 -0800 2007-11-30, Peter Constable wrote:
>Reading through the proposal documents for Vai, it's not entirely
>clear from the text or the samples what the line breaking behaviour
>is in relation to word boundaries. I'm wondering if I can get some
>Generally, the examples make it look as though spaces are not used
>in text at word or phrase boundaries (making Vai reminiscent of Han
>ideographs in this regard), though it's not absolutely clear.
>L2/05-159R (N2984R) has only one sample of running text - the rest
>show syllable charts and such. L2/05-053 show samples suggesting
>some variation in marking word boundaries - some of the samples seem
>to have variable spacing between letterforms so it's also not clear
>to me from this doc if spaces are ever used.
Modern Vai always uses spaces between words. As in the Bible I have
here. Manuscript Vai is less scrupulous about this, but the Right
Thing To Do is treat the syllables like Cherokee syllables... that
is, like Latin letters.
>L2/05-159R has a section on line breaking that indicates that line
>breaks are not permitted before SYLLABLE LENGTHENER or before NG.
>Looking at the beta UCD files, though, it appears that NG (A60B) has
>the same line breaking property as regular syllables (AL); it's not
>clear to me if that's intended or not.
That is Ken's bailiwick I guess.
>The LENGTHENER (A60C) has linebreak = EX, as does FULL STOP (A60E);
>this strongly blocks break before. COMMA (060D) and QUESTION MARK
>(A60F) have linebreak = BA, which less-strongly blocks break before.
>(EX allows preceding break only after hard line break or ZWSP; BA
>also allows a preceding break after spaces (SP) or FFFC).
I can't say I know how to evaluate this.
-- Michael Everson * http://www.evertype.com
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