[liblouis-liblouisxml] Re: UEB: Unicode char representation
- From: "John J. Boyer" <john.boyer@xxxxxxxxxxxxxxxxx>
- To: liblouis-liblouisxml@xxxxxxxxxxxxx
- Date: Mon, 19 Nov 2012 04:22:34 -0600
liblouis does handle Unicode characters. Look at nemeth.ctb and its
included files. They contain Greek letters, mathematical symbols, etc.
written in the form \xhhhh For some months now you have been able to
write characters in UTF-8 encoding, if you have a keyboard that can do
it.
John
On Mon, Nov 19, 2012 at 02:04:05AM -0800, Joseph Lee wrote:
> Hi John and others,
> This is something that we may need to go over before continuing with
> UeB table improvements:
> As you may know, UEB assigns many Unicode chars to dot patterns. This
> include Greek and Latin letters, math symbols, transcriber notes and
> shapes.
> At this time, LibLouis does not handle Unicode chars well - the
> current (old) UEBC table does not even show Greek signs properly,
> which is beyond the range of ASCII chars. If you read a passage
> containing Unicode chars, the current UEBC code shows hex values for
> Unicode chars beyond 255. This fact might be sort of a stumbling block
> for languages which needs to show these Unicode characters (including
> UEBC) using correct braille dot patterns.
> Right now, I decided to experiment with encoding to see which one
> would suit UEBC well - ANSI (works okay, but does not show Unicode
> chars above 255), UTF-8 with or without bomb. It seems that one of
> these two UTF-8 encodings would be best suited for UEBC. However, I
> feel we need to do extensive testing to make sure that UEBC table does
> what it is supposed to do: display complex Unicode symbols using
> correct dot patterns, which would be useful for braille readers who
> needs to access technical materials using correct UEBC signs.
> Thanks.
> //JL
> For a description of the software, to download it and links to
> project pages go to http://www.abilitiessoft.com
--
John J. Boyer; President, Chief Software Developer
Abilitiessoft, Inc.
http://www.abilitiessoft.com
Madison, Wisconsin USA
Developing software for people with disabilities
For a description of the software, to download it and links to
project pages go to http://www.abilitiessoft.com
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