nvda input tables list doesn't contain an arabic tables

[nvaccessAuto]

Reported by fatma.mehanna on 2013-09-25 11:53 hi, arabic braille sense users confirm that they can't read what is being typed on their braille display. when i asked them to change the input table to arabic, they found out that the list of input tables doesn't include arabic. note, the output list contains arabic tables. so what should be done? thanks

[nvaccessAuto]

Comment 1 by jteh on 2013-10-16 04:25 NVDA can only currently handle computer braille input; i.e. a single braille cell maps to a single character. There is only a grade 1 Arabic table, which isn't computer braille. In order for Arabic braille input to work, an Arabic computer braille table would need to be developed, assuming there's even an Arabic computer braille code.

[nvaccessAuto]

Comment 2 by mohammed on 2014-08-19 15:47 Hi Jamie.

I couldn't find clear and easy documentation for developing Braille tables in Liblouis. any directions you or someone else can give will be valuable to get me started on that path. P.S. Arabic grade 2 table needs to be developed too.

Thanks.

[nvaccessAuto]

Comment 3 by jteh on 2014-08-20 06:49 This documentation can be found on the Liblouis website. The section you want is How to Write Translation Tables.

[feerrenrut]

We would happy to receive a pull request for this, for now I believe we are still blocked by the creation of Arabic translation tables (please correct me if I'm wrong).

[mohdshara]

Hi. An Arabic input table now exists, however it doesn't work very well, it can only type the Arabic characters that don't map to any English character. that's because the existing Arabic table defines English characters via an include statement. which I think is wrong and nonstandard. I tried to edit the table but it didn't work. It looks like simply editing the table and restarting NVDA is not enough if you're not running from source. Can anyone help me with this quest?

[jcsteh]

Editing a table and restarting should be sufficient. If you're using an installed copy of NVDA, you'll have to edit it within the Program Files directory, which requires administrator privileges. It might be easier to use a portable copy for this reason.

[mohdshara]

thanks. I just can't find the table responsible for input C:\nvda\louis\tables\ar-ar-g1.utb seems to handle Arabic braille output. while ar.tbl doesn't seem to do anything. can you guide me in this regard?

[jcsteh]

The same tables are used for both input and output; in this case, ar-ar-g1.utb. The .tbl files are just metadata and can be ignored; NVDA does not use them.

[Hatoon-fel]

@jcsteh Hello! I tried to edit the ar-ar-g1.utb to make it avoid confusion between Arabic and english characters, by trying to edit all include statements, But nothing change. could you guide us to the right statements we have to edit, or if there is another file we need to edit please? Thank you for all your efforts to make NVDA better! @mohdshara

[jcsteh]

Please address questions/bugs regarding liblouis tables to the liblouis project. See https://github.com/liblouis/liblouis for details. There is a mailing list to which you can subscribe to ask questions. Thanks.

[jcsteh]

Closing because the table is now listed after #6449. It needs to be fixed to support back-translation properly, but that should be addressed in the liblouis project. Once the fixes make it into a liblouis release, this can be included in NVDA.

[ikrami1]

this is now fixed in liblouis 3.8. back-translating Arabic characters works fine