From: Kenneth Whistler (kenw@sybase.com)
Date: Wed Mar 24 2004 - 15:31:17 EST
Ernest Cline wrote:
> It also doesn't account for boustrephedon writing direction either.
^^^^^^^^^^^^^
boustrophedon
< Gr. strepho, but pf. estropha
Intentionally. That is an issue for a higher-level protocol concerned
with line layout, rather than the plain text encoding itself.
By the way, while Peter Constable noted that
"the interaction of a boustrophedon with bidi is a valid issue."
I would contend that that is at the higher level where bidi
interacts with the line layout mechanism that determines the
directional context, rather than inside the bidi algorithm itself.
Besides, this is really a very, very marginal concern. All real world
exemplars of boustrophedon are *not* bidirectional text, and all
real world exemplars of bidirectional text are not laid out in
boustrophedon. Why? Well, because it would be a stupid thing to
do and give readers and writers headaches.
> If Moon Code [1] is ever added as a Unicode script, then Unicode
> may need to deal with the fact that this script is written today using
> boustrephedon. The other boustrephedon scripts are, if I remember
> correctly, either ancient and/or also usable with a non-boustrephedon
> writing direction. On the other hand, it might just leave this detail to
> a higher level protocol.
Exactly. Tinkering with the bidi algorithm to try deal with
boustrophedon is just silly.
>
> [1] http://www.bsblind.co.uk/full/moon/typeindx.htm
Is Moon Type in actual use, or just a historical curiosity? William
Moon was a 19th century figure.
Some things to note:
Moon Type is a Left-to-right script, just like Greek, that happens
to be laid out in boustrophedon to assist in fingers following
the lines of type from one side of the page to the other. Very
reasonable experiment for an embossed writing system for the blind.
In its intended use, for embossed writing for the blind, Moon
Type could not be mixed with anything else. But, of course,
metatexts *about* Moon Type, like that website, can and do
mix such symbols with Latin text. However, there is no indication
that a bi-script Latin/Moon text per se would make any sense.
The main alphabet is an Latin cipher -- one character for each
of the 26 letters A-Z. But there are additional symbols for
some common English phonemes and some abbreviatory conventions,
a numeric sign, and so forth, that would require additional
characters to encode such a system.
It is an English-only system, by the way, with lists of word
abbreviations for common English words.
--Ken
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