Hi,

FYI, when running install.bat I see problem downloading exe

mtx-install     | changed  :   0 % :  2391552 : tex/texmf-win64/bin/luametatex.exe

mtx-install     | tex/texmf-win64/bin/luametatex.exe, trying again:

After several attempts, the install.bat run stops.

Thanks

Joseph

De : Hans Hagen
Envoyé le :mardi 15 décembre 2020 10:35
À : mailing list for ConTeXt users
Objet :[NTG-context] upload / metafun

Hi,

I uploaded a new lmtx. This time some work has been done at the metafun end.

At the tex end we're working on some overload protection mechanism which

involves tagging many macro so that will take a while (most tagging is

done but checking left over cases take time).

So, I wondered if we can do something similar in metapost: flag macros

and variables in order to issue a warnings when a dangerous overload

happens.

The current lmtx has this as an experiment: primitives, permanent,

immutable and mutable (so far); you can look at the *.mpxl files to get

an idea. If you say for instance

         path fullcircle;

there will be a warning

                metapost        > overloading immutable 'fullcircle'

or when

                \enabledirectives[metapost.overloadmode=error]

has been given you get an error.

The implementation is rather simple and non intrusive and differs from

the one in tex. There it is tightly integrated for all kind of reasons

(millions of macro definitions per run so efficiency matters). Also, in

metapost variables (tags) can have complex name constructions and we

only test the top level. When a overload happens (overloadmode internal

<> 0) a lua callback takes care of it.

A side effect is that we can query all hash entries and check for

consistency which is what i've done and am doing now. Of course that can

introduce issues ... just that you know.

Hans

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                                           Hans Hagen | PRAGMA ADE

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