\lastxpos and \lastypos should behave like registers
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. Cheers, Henri
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) Hans ----------------------------------------------------------------- Hans Hagen | PRAGMA ADE Ridderstraat 27 | 8061 GH Hasselt | The Netherlands tel: 038 477 53 69 | www.pragma-ade.nl | www.pragma-pod.nl -----------------------------------------------------------------
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. Cheers, Henri
Hans
----------------------------------------------------------------- Hans Hagen | PRAGMA ADE Ridderstraat 27 | 8061 GH Hasselt | The Netherlands tel: 038 477 53 69 | www.pragma-ade.nl | www.pragma-pod.nl ----------------------------------------------------------------- _______________________________________________ dev-context mailing list dev-context@ntg.nl https://mailman.ntg.nl/mailman/listinfo/dev-context
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) Hans ----------------------------------------------------------------- Hans Hagen | PRAGMA ADE Ridderstraat 27 | 8061 GH Hasselt | The Netherlands tel: 038 477 53 69 | www.pragma-ade.nl | www.pragma-pod.nl -----------------------------------------------------------------
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. Currently \pdflastpos is only used in one place https://github.com/pgf-tikz/pgf/blob/07959624c5e4c50f80ddf31a3b271885237b37c... but that can be abstracted. Cheers, Henri
Hans
----------------------------------------------------------------- Hans Hagen | PRAGMA ADE Ridderstraat 27 | 8061 GH Hasselt | The Netherlands tel: 038 477 53 69 | www.pragma-ade.nl | www.pragma-pod.nl ----------------------------------------------------------------- _______________________________________________ dev-context mailing list dev-context@ntg.nl https://mailman.ntg.nl/mailman/listinfo/dev-context
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/07959624c5e4c50f80ddf31a3b271885237b37c... but that can be abstracted. dvi sounds like pdftex being used (or maybe xetex) Hans
----------------------------------------------------------------- Hans Hagen | PRAGMA ADE Ridderstraat 27 | 8061 GH Hasselt | The Netherlands tel: 038 477 53 69 | www.pragma-ade.nl | www.pragma-pod.nl -----------------------------------------------------------------
participants (2)
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Hans Hagen -
Henri Menke