[OS X TeX] TeXShop 2.34

Simon Spiegel simon at simifilm.ch
Sat Jun 5 02:35:40 EDT 2010

On 05.06.2010, at 05:19, Adam M. Goldstein wrote:

> On Jun 4, 2010, at 7:09 AM, Benoit RIVET wrote:
>> Le 4 juin 2010 à 12:53, Josep Maria Font a écrit :
>>> El 04/06/2010, a las 11:23, Simon Spiegel escribió:
>>>> Today, most (La)TeX users use pdftex to process their files. LuaTeX is meant to replace pdftex. 
> So, does Lua(La?)TeX create PDF output? 

Yes, and like pdftex, it can also produce DVI.
>>> An end user *uses* a front end, and should not need to be aware of the existence of pdftex. I understand that LuaTeX will be the new "background engine", but users will continue to use TeXShop, TeXmaker or whatever... ?
> Also---there seems to have been some discussion in this thread concerning differences in output due to microtype. Granted, there are many variables here, and so it's not clear that this is due to changing processing programs, or changes in microtype as it's used in Lua.... But I wonder, will pdf(La)TeX and Lua(La)TeX begin to diverge? I suppose it is a question for individual package creators? Suppose one simply doesn't want to use and Lua scripts one way or the other; could one continue to use pdfTeX/pdfLaTeX?

Even without microtype, luatex's output is not guaranteed to be 100% identical to pdftex, since a lot of internal stuff has been changed/replaced/rewritten. For example, hyphenation works quite different internally. This will not have much effect for the user when he writes his documents, but the output might look different.

> Also, is there really LuaLaTeX and LuaTeX? I can't tell if this is tongue-in-cheek or if the situation is parallel with pdfTeX and pdfLaTeX.

Well, there's TeX, and there's the markup language LaTeX build on top of TeX. There's pdfTeX and pdfLaTeX, there's XeTeX and XeLaTeX, and there's LuaTeX and LuaLaTeX …


Simon Spiegel
Steinhaldenstr. 50
8002 Zürich

Telephon: ++41 44 451 5334
Mobophon: ++41 76 459 60 39


„When you only have a hammer, you tend to see every problem as a nail.“ Abraham Maslow

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