News
Liblouis Release 3.22.0
07 Jun 2022 - Liblouis
This is a major release. On the Braille tables side there is a new table for German grade 2 with capitalization and there are updates to the Dutch, German Hungarian, Punjabi, Russian, UK Braille Computer Notation and Slovak tables. Christian added a new opcode to indicate the end of a number where the number doesn't end at a space character. Last but not least Samuel, Martin and Han have put a lot of work into checking for and fixing memory problems.
I'd like to thank everybody for helping to bring liblouis forward.
For a detailed list of all the changes refer to the list of closed issues.
- New features
- Bug fixes
- Braille table improvements
- Other changes
- Deprecation notice
- Backwards incompatible changes
- Invisible changes
- New, renamed or removed tables
New features
- Add a new opcode
nonumsign
that helps with indicating the end of a number when it doesn't occur at the end at the end of a word such as '123abc' for example. For more details see the documentation. Thanks to Christian Egli.
Bug fixes
- Prevent a memory overflow in
compilePassOpcode
thanks to Martin Gieseking. This was reported in CVE-2022-26981 and should now be fixed. - Prevent processing of characters beyond the string end in
parseChars
thanks to Martin Gieseking. - Prevent an invalid memory writes in
compileRule
. Thanks to Han Zheng for reporting it and to Christian Egli for fixing it.
Braille table improvements
- Improvements to German braille:
- Improve handling of single letters in grade 2 thanks to Mischa Künzle.
- Improve handling of emphasis thanks to Bert Frees.
- Add a table for grade 2 with capitalization thanks to Christian Egli.
- Fix a problem with Ñ in Dutch braille thanks to Paul Rambags
- Updated Slovak Braille table to be inline with the 2021 Slovak braille usage guidelines.
- Fixed a problem with the '+' symbol in UK Braille Computer Notation thanks to Mario Arias.
- Major improvements to the Hungarian braille tables thanks to Attila Hammer.
- Make Punjabi table to behave the same as Duxbury in forward translation and more reliably than Duxbury in back translation. Thanks to Jake Kyle.
- Improvements to the Russian and other Cyrillic tables thanks to Andrey Yakuboy:
- Now all Russian based tables return braille Unicode braille by default when forward translating, no need to include
ru-unicode.dis
manually. - French letters (æ, ë and ï) have been added to the Russian literary braille table.
- Now all Russian based tables return braille Unicode braille by default when forward translating, no need to include
Other changes
- Integrate sanitizer tests in the CI pipeline and fix a large number of memory problems (leaks, overflow and undefined behavior) thanks to Samuel Thibault.
- Removed the "experimental" label from the functions
lou_indexTables
,lou_findTable
,lou_findTables
,lou_getTableInfo
andlou_listTables
(the meta data query API). - Fix a build problem when using Clang 11 on macOS thanks to Robert Scott.
Deprecation notice
- None
Backwards incompatible changes
- None
Invisible changes
New, renamed or removed tables
New
- de-g2-detailed.ctb
Renamed
- None
Removed
- None
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