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Babel

The multilingual framework to localize LaTeX, LuaLaTeX, XeLaTeX

What’s new in babel 3.58

2021-04-26

Transforms added to ini files

Czech, Polish, Portuguese, Slovak, Spanishhyphen.repeat ▸ Explicit hyphens behave like \babelhyphen{repeat}.

Czech, Polish, Slovakoneletter.nobreak ▸ Converts a space after a non-syllabic preposition or conjunction into a non-breaking space.

Hindi, Sanskritpunctuation.space ▸ Inserts a space before the following four characters: !?:;. Added transliteration.hk for Sanskrit, too.

Serbiantransliteration.gajica ▸ (Note serbian with ini files refers to the Cyrillic script, which is here the target.) The standard system devised by Ljudevit Gaj.

Verbatim and \babelprehyphenation

⚠ Now prehyphenation transforms are deactivated if the current hyphenation patterns are nohyphenation, so that they aren’t applied in verbatim mode.

This behavior can be switched with:

\babeladjust{ prehyphenation.disable = nohyphenation }
\babeladjust{ prehyphenation.disable = off }

New line breaking mode

So far, babel/lua provided three line breaking modes in the ini settings, for ‘hyphenated’ (the default), ‘CJK’ and ‘Southeast Asian’. A new mode has been added for ‘unhyphenated’ languages, like Arabic or Malayalam. It adjusts the paragraphs parameters to allow large spaces between words.

Although for European standards the result may look odd, in some scripts this has been the customary (although not always the desired) practice. Because of that, no locale sets currently this mode by default (Amharic is an exception). It works with xetex, too.

It can be activated in the following way:

\babelprovide[hyphenrules = unhyphenated]{<language>}

because the patterns so called set the line breaking mode to ‘unhyphenated’ (it also works the other way – setting the mode in the ini file sets the hyphenrules).

So, currently there are two modes for scripts that separate words with spaces, and two modes for scripts with no word separator. Further modes could be added in the future, and there is work in progress for ‘Justification alternates’ and tatwil in Arabic (see below).

See also here for Uyghur hyphenation.

Arabic justification (experimental)

There is some experimental code for Arabic justification, for demonstration purposes (not really usable in real documents). The basic code is based on the wonderful package chickenize, by Arno L. Trautmann. Just the main font, no rules, brute force, direct 1-to-1 glyph replacements. All this will be sorted out later, as well as support for kashida. Feel free to contribute and make suggestions.

Arabic-justify

The preamble used in the previous example is:

\documentclass{article}

\usepackage[arabic, provide=*, bidi=basic]{babel}

% A Windows font with jalt table. Also Arabic Typesetting.
\babelfont{rm}{Sakkal Majalla}% Windows font with jalt table.

\ArabicSetupJust

The last macro is temporary. It will be removed.

Fixes