Taking this thread back to the original question...
The Line_Break property values for halfwidth katakana (lb=AL)
and regular katakana (lb=ID) have been stable since they
were first defined for Unicode 3.0 -- 15 years ago.
Regardless of whether lb=AL is the optimal assignment for
the halfwidth
My feeeling is that half-width kanas behave like Latin letters and do not
even have to follow the ideographic composition square to line up with them
(unlike standard kanas). So effectively their line breaking behavior is
very different.
Those half-width letters are in fact similar to linear
Note: is it really allowed to break between a Latin letter and an
half-width kana? Such sequences are frequent when there are untranslated
foreign Latin (or may be Greek/Cyrillic/Hebrew/Arabic) insertions in
Japanese (toponyms, trademarks, people names...), that are followed by a
semantic kana
Dear Philippe,
Philippe Verdy wrote:
My feeeling is that half-width kanas behave like Latin letters and do not
even have to follow the ideographic composition square to line up with them
(unlike standard kanas). So effectively their line breaking behavior is
very different.
Excuse me, do you
I just gave an opinion about what I have seen. I don't know if this is
correct or preferred.
Half-width text is a modern invention that does not obey the traditions
used in CJK composition squares (which should also be rendered vertically
by default, even if today on the Internet this is not the
No. They are still in use.
One typical usage of half-width kanas is the display of short texts on small
devices of embedded systems, like status messages of control units,
for example a one-line display, 30 characters wide, monospace, with 8x10
pixels per character.
Albrecht
Hi, Suzuki-san. Thank you for reply.
At present, I have no objection to add halfwidth katakana
to ideographic-class in UAX#14, but I'm unfamiliar with the
(negative) impact caused by the lack of halfwidth katakana
in it. Could you tell me if you know anything?
Since half-width katakana
# Sorry, I slipped to consider about the
# big picture attachment. I reduced the
# image size and resend to Unicode mailing
# list.
Kato-san,
Thank you very much for prompt response.
This is a sample for line break of half-width katakana. (There is
good sample by web browser implementation)
My feeeling is that half-width kanas behave like Latin letters and
do not even have to follow the ideographic composition square to
line up with them (unlike standard kanas).
It's exactly the half of the ideographic square.
So effectively their line breaking behavior is very different.
However, the most important property is to be able to start a new
line after (almost) any half-width kana.
Bad formulation, sorry. I mean:
However, the most important property is to be able to break a line
after (almost) any half-width kana.
Werner
2015-04-28 10:09 GMT+02:00 Werner LEMBERG w...@gnu.org:
Yes, for typographic purposes. But typographic issues are not covered
by Unicode. AFAIK, the existence of half-width kanas in Unicode is
purely for backwards and round-trip compatibility.
Yes, compatibility with typographic
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