CTAN update: luavlna
Bug fix release: - make non-breaking spaces only from glue with the spaceskip subtype - abort package loading when the document is not compiled with LuaLaTeX - replaced Slnunicode library with stock UTF8 library from Lua
The package’s Catalogue entry can be viewed at https://ctan.org/pkg/luavlna The package’s files themselves can be inspected at https://mirrors.ctan.org/macros/luatex/generic/luavlna/
Thanks for the upload. For the CTAN Team Petra Rübe-Pugliese
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luavlna – Prevent line breaks after single letter words, units, or academic titles
In some languages, like Czech or Polish, there should be no single letter words at the end of a line, according to typographical norms. This package handles such situations using LuaTeX’s callback mechanism. In doing this, the package can detect languages used in the text and insert spaces only in parts of the document where languages requiring this feature are used.
Another feature of this package is the inclusion of non-breakable space after initials (like in personal names), after or before academic degrees, and between numbers and units.
The package supports both plain LuaTeX and LuaLaTeX.
BTW: “vlna” is the Czech word for “wave” or “curl” and also denotes the tilde which, in TeX, is used for “unbreakable spaces”.
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