[liblouis-liblouisxml] Re: UEB: Unicode char representation
- From: Joseph Lee <joseph.lee22590@xxxxxxxxx>
- To: liblouis-liblouisxml@xxxxxxxxxxxxx
- Date: Mon, 19 Nov 2012 09:44:33 -0800
Hi,
Thanks - I'll investigate. Or perhaps I could include contents of
Nemeth table to en-ueb-g1.ctb (encoded in UTF-8) to see what
happens.Cheers,
Joseph
On 11/19/12, John J. Boyer <john.boyer@xxxxxxxxxxxxxxxxx> wrote:
> 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
>
For a description of the software, to download it and links to
project pages go to http://www.abilitiessoft.com
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