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Liblouis Release 3.14.0

02 Jun 2020 - Liblouis

This release contains major updates to Arabic, Dutch 8-dot computer braille, German, Russian computer braille, Ukrainian computer braille and Uzbek. Also there are new tables for Israeli multi-language Hebrew/Arabic/English braille and Malay. Aside from that there have been many code cleanups and bug fixes.

For a detailed list of all the changes refer to the list of closed issues.

New features

  • Add new test mode in lou_checkyaml for testing display tables. Thanks to Bert Frees.

Bug fixes

  • Work around a bug that causes an endless loop in French uncontracted braille thanks to AndrĂ©-Abush Clause.

Braille table improvements

  • Updates to the Russian computer braille table thanks to Andrey Yakuboy:
    • Fixed diacritics, Greek letters and Hebrew.
    • Added new Cyrillic letters.
    • Fixed several minor bugs.
  • New table for Uzbek braille thanks to BAUM Engineering.
  • New table for Ukrainian computer braille thanks to Andrey Yakuboy and Oleh Shpai.
  • Improvements to Arabic thanks to Ikrami Ahmad and Mada, Qatar Assistive Technology Center.
    • Added a lot of new symbols (algebra, geometry, Greek, etc.) to the grade 1 table.
    • Changed some symbols for less conflicts with grade 2.
    • Implemented letter sign / grade 1 indicator to cancel numbers and inhibit contractions when in grade 2.
    • Updated 8-dot computer braille table for better (easier to memorize) presentation of basic math symbols and punctuation marks.
    • Improved back-translation.
  • Improvement to German thanks to Bue Vester-Andersen.
    • Removed superfluous letter sign before certain lesser-used accented letters.
  • Final version of Dutch 8-dot computer braille table thanks to Leonard de Ruijter.
  • New Israeli multi-language Hebrew/Arabic/English tables for both uncontracted and computer braille. Thanks to BAUM Engineering and Erez Kugler from TSR Gaash.
  • New table for grade 2 Malay braille (Malaysia) thanks to Herbert Koh.

Other changes

  • You can now use up to 256 noletsign characters in a table, thanks to Christian Egli.
  • Major improvements to the documentation for the Standing Alone Sequences and their related opcodes such as seqdelimiter and also clarifications regarding the begcaps and endcaps opcodes thanks to Bue Vester-Andersen.

Deprecation notice

  • The class opcode has been deprecated in favor of attribute, which has been enhanced to do everything class can do.

Backwards incompatible changes

None

Invisible changes

New, renamed or removed tables

New

  • uz-g1.utb
  • ar-ar-g1-core.uti
  • ar-ar-math.uti
  • he-IL.utb
  • he-IL-comp8.utb

Renamed

None

Removed

da-dk.dis
This table has long been superseded by da-dk-octobraille.dis.
da-lt.ctb
This table was a step on the way to defining a Danish 8 dot standard. The table was referring to an old Danish Braille note-taker from the 80s and 90s, which is not used any more.
fi1.ctb and fi2.ctb
These tables are obsolete. Use fi-fi-8dot.ctb instead.