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I have just uploaded the archives for luatex 0.28.0, another
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intermediate release leading up to TUG 2008. This release
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matches SVN revision #1357.
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There is one new feature:
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There is now experimental support for non-trivial discretionaries
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following explicit hyphens. In analogy to \prehyphenchar and
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\posthyphenchar, there are two new parameters \preexhyphenchar en
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\postexhyphenchar. Both new parameters default to zero (nothing).
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When set to a nonzero value, the parameter is added to either the
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pre- or post- break text. Note that this is *in addition to* the
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hyphen already in the input. Testing and comments are very welcome.
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Here is a short example (no idea what is says):
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pudesse t\^e-lo mantido como amigo, mas por
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mais bem-intencionado que eu fosse, n\~ao
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Bugs fixed compared to 0.27.0:
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* Words that started off with a character with a zero \lccode
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were never hyphenated at all.
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* There was a bug in the new active characters code that prevented
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the latex format from being built (with Invalid character error).
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* There is a temporary fix for the sometimes appearing "Font has a
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bad FontBB" message from Acrobat.
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* \leaders did not actually stretch enough (the last bit of glue
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that has to line up the line endings was never output to the PDF).
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* Bad paragraph-related callbacks could result in luatex crashing.
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* The pre_linebreak and post_linebreak filters were never called
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when \output was active (this was a leftover of a superceded
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* 'skipping' language codes when setting up \patterns c.s. did not
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work (it used the next empty slot instead of the actual value of
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* Using multiple 'attr' keywords on box items could cause random
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* Calling lang.hyphenate() with one argument (without specifying a
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tail node) could crash.
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* The luatex pdf banner and version reporting is cleaned up a bit.
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* Conflicting patterns inside \patterns now give an error:
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! Conflicting pattern ignored.
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(duplicate identical patterns are ignored without error).
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The archives (source and binaries) can be downloaded from supelec,
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http://foundry.supelec.fr/projects/luatex/
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Bugs and feature requests can be added to the issue tracker at
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http://tracker.luatex.org