On 5/23/2019 2:05 AM, Henri Menke wrote:
On 23/05/19 11:55 AM, Hans Hagen wrote:
On 5/23/2019 1:47 AM, Henri Menke wrote:
On 23/05/19 11:36 AM, Hans Hagen wrote:
On 5/23/2019 1:11 AM, Henri Menke wrote:
Dear devs,
The two macros \lastxpos and \lastypos should behave like registers,
because that is what they are in LuaTeX. The following MWE fails with
! You can't use `the character 0' after \the
\starttext
\the\lastxpos
\the\lastypos
\stoptext
A simple fix would be to wrap the macro in \numexpr like in the attached
patch.
hm, i was actually about to drop them completely ... anyway, i have no
problem with the fix but then it also need to be \unexpanded
(i'm reshuffling some code so probably no beta for a few days)
Dropping \pdflastxpos and \pdflastypos would break TikZ, so it would be
good if at least the \lastxpos and \lastypos primitives would be
accessible.
ok, but i assume that there is no need for the \pdf* ones (because i
decided to drop all those specific \pdf* aliases in the next beta ...
they were never meant to be persistent part of mkiv) ... i grepped tikz
and could not find usage of \pdf... apart from the official luatex ones
(actually, tikz is the only package i know that we need to keep an eye
on wrt downward compatibility; context modules use different interfaces)
You might be happy to hear that I am the current TikZ maintainer, so I
can shape it for best interoperability with ConTeXt.
ok, so the abstraction layer can be improved a bit then
Currently \pdflastpos is only used in one place
https://github.com/pgf-tikz/pgf/blob/07959624c5e4c50f80ddf31a3b271885237b37cc/tex/generic/pgf/systemlayer/pgfsys-common-pdf-via-dvi.def#L97-L102
but that can be abstracted.
dvi sounds like pdftex being used (or maybe xetex)
Hans
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Hans Hagen | PRAGMA ADE
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