lmtx status

lmtx status

[Hans Hagen via ntg-context]

Hi,

At the ctx meeting we released luametatex, that is, the source code is 
now in the context zip (so it grew a few MB). At the same time Mojca set 
up some contextgarden repositories on github. We're working on a setup 
for users to generate older snapshots, if needed (for instance because 
there are platform changes). She's also working on cmake based 
installation helpers.

One of the things we did was pruning the fonts that are part of the 
installation. With a few exceptions the type one fonts were dropped, 
which is most noticeable for math. There is no need for px and tx fonts, 
they served their puspose in the transition from old style t1 fonts to 
opentype math (when we started with mkiv; we could have dropped them 
already).

We're looking into antykwa math as well as in alternative script and 
calligraphic math alphabets so eventually virtual math from t1 
construction can be dropped completely (in principle if can be 
integrated in the tweak mechanisms) because it is not wirth the effort 
to make them better. That means that we will ship some additional 
companion fonts.

There are math times fonts but they are currently not free and there is 
some effort going on to turn them opentype so we can ditch their setups 
too (we can't test anyway; to some extend that is also true for minion 
math).

High on the agenda is euler (in combination with pagella). This also 
relates to upgraded mixed script and calligraphic support in math. It 
actually means that enabling alternative alphabets will happen a bit 
differently (more naturally integrated as we introduced dedicated ranges 
of slots). Again a side effect is that we have more granular math glyph 
properties (opentype math is too limited but basically frozen so we have 
to get over that and move on). We (Mikael and me) also try to compensate 
for the ommissions and weird things in unicode math but it will take 
some time before we have that all documented.

One of the next uploads will have the pruned / upgraded texmf tree (one 
can always install more in the local tree of course). At some point 
installing from the garden (or from a git clone) will also be supported 
(basically anyone can host a lmtx install).

For the next texlive we hope to switch to lmtx as default and that also 
means that luametatex is the runner then. One can (as currently in lmtx) 
always run luatex with "--luatex".

Als-in-all it's a lot of work but we're getting there.

Hans


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                                           Hans Hagen | PRAGMA ADE
               Ridderstraat 27 | 8061 GH Hasselt | The Netherlands
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