XeTeX vs. luatex

XeTeX vs. luatex

[Gour]

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Hi!

After moving to emacs I decided to settle on ConTeXt markup and want to
use Unicode engine.

Luatex is advancing very nicely and I wonder is there any reason to use
XeTeX over luatex, i.e. what features are missing (if any) in regards to
regarding font-handling in luatex in comparison with XeTeX?

Sincerely,
Gour




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Re: XeTeX vs. luatex

[Hans Hagen]

Gour wrote:
> Hi!
> 
> After moving to emacs I decided to settle on ConTeXt markup and want to
> use Unicode engine.
> 
> Luatex is advancing very nicely and I wonder is there any reason to use
> XeTeX over luatex, i.e. what features are missing (if any) in regards to
> regarding font-handling in luatex in comparison with XeTeX?

hard to say; xetex uses a libary + some of its own code for open type 
handling; luatex needs lua code; many features are already implemented

there are some linebreak related ones for which we either need an 
extension to the par builder i.e. glyph altermnatives, or i need to do 
the linebreaking in lua

missing things in luatex is just a matter of time (and motivation on my 
side -); i suppose that xetex is currently somewhat faster but luatex 
will be more flexible (which of course also has some costs); i think 
that both have their place and prefered usage; it all depends on your 
usage and expectations; of course at some point mkiv (with luatex) will 
go way beyond what we now do with mkii

context will support both engines

Hans


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___________________________________________________________________________________
If your question is of interest to others as well, please add an entry to the Wiki!

maillist : ntg-context@ntg.nl / http://www.ntg.nl/mailman/listinfo/ntg-context
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Re: XeTeX vs. luatex

[Gour]

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>>>>> "Hans" == Hans Hagen <pragma@wxs.nl> writes:

Hans> hard to say; xetex uses a libary + some of its own code for open
Hans> type handling; luatex needs lua code; many features are already
Hans> implemented

Wonderful.

Hans> missing things in luatex is just a matter of time (and motivation
Hans> on my side -); i suppose that xetex is currently somewhat faster
Hans> but luatex will be more flexible (which of course also has some
Hans> costs); i think that both have their place and prefered usage; it
Hans> all depends on your usage and expectations; of course at some
Hans> point mkiv (with luatex) will go way beyond what we now do with
Hans> mkii

Thanks a lot. Processing time is not so significant compared to
authoring time ;)

However, since I plan to use ConTeXt only, it means there is no need to
keep XeTeX updated - I'm trying to simplify my setup and keep just the
minimum number of packages, i.e. getting rid of extra bloat.

Fine, I already have mkiv (0.20.2) and can continue to use it...

Sincerely,
Gour


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___________________________________________________________________________________
If your question is of interest to others as well, please add an entry to the Wiki!

maillist : ntg-context@ntg.nl / http://www.ntg.nl/mailman/listinfo/ntg-context
webpage  : http://www.pragma-ade.nl / http://tex.aanhet.net
archive  : https://foundry.supelec.fr/projects/contextrev/
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