No, cow.pdf is in the default location and is found with no problem when
tagging is off or the setlayer is moved out of the setup. The Lua error
does not occur with most commands, but does occur with external figures.
--
Rik
On 2017-10-09 12:32, Floris van Manen wrote:
if i omit the line with the \externalfigure it does work
is that cow.pdf missing?
On 9 Oct 2017, at 18:11, Rik Kabel <cont...@rik.users.panix.com> wrote:
Consider the following almost-minimal example:
\setuptagging [state=start]
\setuppapersize [A6]
\setupexternalfigures[location=default]
\definemakeup [cover4][page=left,doublesided=no]
\definelayer [isbn][width=\pagewidth,height=\pageheight]
\define \Title {A Primer on Omphaloskepsis}
\startsetups [placeisbn]
\setlayer [isbn][preset=rightbottom,hoffset=5mm,voffset=5mm]
{\externalfigure[cow.pdf][width=3cm]}
\stopsetups
\starttext
\setupbackgrounds [page][setups=placeisbn,background=isbn]
\startmakeup [cover4]
\scale [width=\textwidth] {\red \Title}
\stopmakeup
\stoptext
For me (Win64, current standalone beta), compilation halts with:
lua error > lua error on line 4 in file C://Users/rik/Desktop/xxx.tex:
...ext/tex/texmf-context/tex/context/base/mkiv/back-exp.lua:823: attempt to
index local 'spec' (a nil value)
stack traceback:
...ext/tex/texmf-context/tex/context/base/mkiv/back-exp.lua:823: in
function <...ext/tex/texmf-context/tex/conte
xt/base/mkiv/back-exp.lua:818>
(It always points to line 4 of the file, no matter the file.) When the halt is
answered with a CR, the processing runs to completion with no apparent errors.
When the first line is removed, or the state set to stop, compilation completes
normally.
When the content of the setup (the two-line \setlayer) is moved out of the
setup, compilation completes normally (without regard to tagging).
(I use a setup here because, in the real work on which this is based, there are
other items in the layer that cannot be properly handled until after \starttext
processing.
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