| liblouis 3.37.0 has been released |
| |
| The liblouis developer team is proud to announce the liblouis release |
| 3.37.0. The release is available for download at: |
| |
| https://github.com/liblouis/liblouis/releases |
| |
| Introduction |
| ============ |
| |
| Liblouis is an open-source braille translator and back-translator. It |
| features support for computer, literary and math braille, supports |
| contracted and uncontracted translation for many, many languages [1]_. |
| It plays an important role in an open source accessibility stack and is |
| used by screenreaders such as NVDA, Orca and JAWS. A companion project |
| liblouisutdml [2]_ deals with formatting of braille. |
| |
| Noteworthy changes in this release |
| ================================== |
| |
| The nice thing about creating a release is that you get to bring in all |
| these wonderful contributions that people have provided. This time we |
| have new and improved braille tables for Danish, Devanagari, English |
| grade 3, Estonian 6-dot, Hungarian, Italian 6-dot, Norwegian and UK |
| 8-dot computer. Anthony has done incredible work to fix obscure opcode |
| bugs. XANOY and PGZXB have patched many security problems and finally |
| Benedict Carling has improved typeform handling for back-translation so |
| that it is finally usable. |
| |
| 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 [3]_. |
| |
| New features |
| ------------ |
| |
| - The typeform buffer is now populated during back-translation. This |
| allows applications to detect emphasis (italic, bold, underline) when |
| translating braille back to text. Thanks to Benedict Carling of Paige |
| Braille. |
| - The YAML test format has a new ``expected_typeform`` field to test |
| that emphasis in braille is correctly detected during |
| back-translation. |
| |
| Bug fixes |
| --------- |
| |
| - Both ``sufword`` and ``prfword`` now correctly recognize |
| ``seqdelimiter`` characters as word boundaries during forward |
| translation and respect ``nocontractsign`` during back-translation, |
| thanks to Anthony Tibbs. |
| - Fix contraction opcode bugs when using ``nocontractsign`` thanks to |
| Anthony Tibbs. |
| - Fix a NULL pointer dereference ``lou_readCharFromFile`` thanks to |
| XANOY. |
| - Fix a memory leak in ``parseLanguageTag`` when parsing invalid |
| queries and a heap buffer overflow in ``syllableBreak``. Both thanks |
| to PGZXB. |
| - Fix a stack overflow when an invalid ``LOUIS_LOGLEVEL`` string is |
| provided and avoid a crash when the table resolver is NULL. Both |
| thanks to Anthony Tibbs. |
| - Fix an infinite loop in ``isEmphasizable`` caused if characters |
| mistakenly reference one another thanks to Anthony Tibbs. |
| - Fix ``capsword`` translation with ``endword`` apostrophe'd letters |
| (e.g. AA's, FBI's) again thanks to Anthony Tibbs. |
| - Fix a heap buffer overflow in ``translateString`` when handling |
| ``joinnum`` or ``joinword`` rules. Thanks to Christian Egli for |
| fixing and zerojackyi for reporting it. |
| - Various code cleanups thanks to Bert Frees. |
| - Fix a stack buffer overflow in ``pattern_compile_expression`` and a |
| stack buffer overflow in ``_lou_getTablePath`` when |
| ``LOUIS_TABLEPATH`` is too long, both thanks to PGZXB. |
| |
| Braille table improvements |
| -------------------------- |
| |
| - Add a complete implementation for UK 8-dot computer braille according |
| to the standard created by the BAUK (Braille Authority of the UK) and |
| currently maintained by the successor organization, UKAAF thanks to |
| Seeing Hands. |
| - Vastly improved Italian 6-dot braille table thanks to Tommaso Nonis |
| of Vision Dept S.r.l. |
| |
| - The table has been completely redesigned, and various mathematical |
| symbols, capitalization and punctuation were fixed. |
| - inputting characters from A to J no longer results in numbers |
| being inserted instead. |
| - Parentheses, quotation marks, brackets and braces now display |
| correctly |
| - Emphasis marks have been introduced for bold, italic and |
| underline, allowing these to be viewed in screen reader utilities |
| that support them. |
| |
| - Improvements to Norwegian thanks to Lars Bjørndal. |
| - Corrections to Danish Grade 2 thanks to Bue Vester-Andersen. |
| - Improvements to Hungarian forward and backward translation thanks to |
| Attila Hammer. |
| - Major updates to Devanagari to comply with the new Bharti Braille |
| rules 2.1. Also support for back-translation support was added thanks |
| to Dipendra Manocha and Jake Kyle. |
| - Add an Estonian 6-dot braille table based on the official Estonian |
| Braille Standard (March 2009) and Eesti punktkirja käsiraamat (2011) |
| thanks to Artur Räpp and Taniel Kirikal. |
| - Improvements to English grade 3 thanks to Bue Vester-Andersen. |
| |
| Other changes |
| ------------- |
| |
| - None |
| |
| Deprecation notice |
| ------------------ |
| |
| - None |
| |
| Backwards incompatible changes |
| ------------------------------ |
| |
| - The ``literal`` opcode has been removed as it was synonymous with the |
| ``compbrl`` opcode. |
| |
| Invisible changes |
| ----------------- |
| |
| - None |
| |
| New, renamed or removed tables |
| ------------------------------ |
| |
| New |
| ~~~ |
| |
| - et-6dot.utb |
| |
| Renamed |
| ~~~~~~~ |
| |
| - None |
| |
| Removed |
| ~~~~~~~ |
| |
| - it.tbl |
| |
| - use it-it-comp6.utb instead |
| |
| Next release |
| ============ |
| |
| The next release will be published on June 1 2026 so please keep up the |
| excellent work and keep those improvements coming. |
| |
| Share and Enjoy! |
| |
| – Christian Egli, on behalf of the liblouis developers |
| |
| Footnotes |
| ========= |
| |
| .. [1] |
| https://github.com/liblouis/liblouis/tree/master/tables |
| |
| .. [2] |
| https://github.com/liblouis/liblouisutdml |
| |
| .. [3] |
| https://github.com/liblouis/liblouis/milestone/47?closed=1 |
