[lltx] announcing lualatex-doc
mpg at elzevir.fr
Tue Nov 9 19:20:14 CET 2010
Le 09/11/2010 18:54, Stephan Hennig a écrit :
> Oh, I didn't meant to say all line breaks will turn out different when
> switching from pdfTeX to LuaTeX. But for LuaTeX, in contrast to other
> engines, identical typesetting results for legacy documents have not
> been a design goal. LaTeX users switching to LuaTeX should keep that in
> Sources of incompatibility that I know:
> [snipped interesting details]
> Which of these items is an edge-case is hard to tell. From an
> algorithmic point of view all of these are surely edge-cases. But from
> a document designer's point of view, any of that might just affect you.
Thanks for the details and examples. I think you're right that what one might
call edge cases from an implementation perspective is not so unlikely to happen
>> The patterns are the same for XeTeX and LuaTeX.
> Sure. I was aiming at LaTeX users switching from traditional TeX or
> pdfTeX to LuaTeX. I know of at least one language where there are
> different patterns used by traditional and modern engines (German,
>> So, the only important source of differences is the fonts that may not be
>> selected the same way and are never used in exactly the same way (there is a
>> fundamental difference between XeTeX and LuaTeX here indeed).
> Are you actually focusing on differences between XeTeX and LaTeX?
Well, that's not the goal of the document, but for some reason that's what I was
thinking about when I wrote the above paragraph... which is not so relevant
>> I'm not saying there are no differences, but for the moment I'm hesitating to
>> mention them since the extent isn't very clear to me.
> It isn't very clear to me too, but then again, mentioning possible
> incompatibilities in the document should put you (and the users) on the
> safe side. Going into detail with examples isn't necessary, I think.
I already added a small paragraph about that:
I'll consider improving this paragraph later using the informations in your
email. I agree that examples are maybe not necessary, but knowing a bit more
about the differences might help to imagine how likely it is that they actually
affect one's documents.
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