[NTG-context] Difference between MKII, XeTeX and MKIV

Marco netuse at lavabit.com
Mon Mar 14 22:49:13 CET 2011

On 2011-03-14 Mojca Miklavec <mojca.miklavec.lists at gmail.com> wrote:

> > xetex:
> > + system fonts are easily accessible
> > - no protrusion, no font expansion
> I never tried to use them, but I thought that Han The Thanh [please
> add the accents] added that to XeTeX semi-recently
> (http://scripts.sil.org/svn-view/xetex/TRUNK/, the last comment 8
> months ago: "merged microtype branch to trunk").

I don't follow xetex development any more, so my information was outdated.
Thanks for the correction.

> > luatex:
> > + protrusion, font expansion, easy access of system fonts, scripting
> > language included, fast with mplib
> > - in general much slower
> ... depending on whether "in general" includes metapost or not. A
> speed factor of ten (faster) is nothing unusual for luatex when many
> metapost graphics come into play.

I totally agree. But Cecil mentioned in another thread: »My document is mostly
text.« Even if a few mp graphics are involved luatex is still noticeably


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