setmemstream to use pdfe.new instead of epdf.openMemStream

setmemstream to use pdfe.new instead of epdf.openMemStream

[Adam Reviczky]

Hi,

I am using the "figures.setmemstream" for inline images and it is
broken now with the latest luatex on the changes from
epdf.openMemStream to pdfe.new.

Although it does say "very experimental and likely to change", but can
we update the call from epdf.openMemStream?

Minimal example:
\starttext
\startluacode
figures.setmemstream("inline",mime.unb64("iVBORw0KGgoAAAANSUhEUgAAAAEAAAABAQMAAAAl21bKAAAAA1BMVEUAAACnej3aAAAAAXRSTlMAQObYZgAAAApJREFUCNdjYAAAAAIAAeIhvDMAAAAASUVORK5CYII="))
context.externalfigure({"memstream:///inline"})
\stopluacode
\stoptext

or as in grph-mem.lua:
-- \startluacode
--     figures.setmemstream("whatever",io.loaddata("t:/sources/cow.pdf"))
-- \stopluacode
--
-- \externalfigure[memstream:///t:/sources/cow.pdf]
-- \externalfigure[memstream:///whatever]

The error message is:
/usr/share/texmf/tex/context/base/mkiv/grph-mem.lua:32: attempt to
index global 'epdf' (a nil value)
stack traceback:
    /usr/share/texmf/tex/context/base/mkiv/grph-mem.lua:32: in
function 'setmemstream'
    [ctxlua]:2: in main chunk

Which points to the line of "local memstream, identifier =
epdf.openMemStream(stream,#stream,name)"
LuaTeX commit 6822 change was "epdf.new (aka memstreams) (HH)"

ConTeXt  ver: 2018.06.23 12:12 MKIV beta  fmt: 2018.6.23  int: english/english
luatex version 1.09 with functionality level 6823,

Thanks,
Adam
___________________________________________________________________________________
If your question is of interest to others as well, please add an entry to the Wiki!

maillist : ntg-context@ntg.nl / http://www.ntg.nl/mailman/listinfo/ntg-context
webpage  : http://www.pragma-ade.nl / http://context.aanhet.net
archive  : https://bitbucket.org/phg/context-mirror/commits/
wiki     : http://contextgarden.net
___________________________________________________________________________________

Re: setmemstream to use pdfe.new instead of epdf.openMemStream

[Hans Hagen]

On 6/23/2018 11:55 PM, Adam Reviczky wrote:
> Hi,
> 
> I am using the "figures.setmemstream" for inline images and it is
> broken now with the latest luatex on the changes from
> epdf.openMemStream to pdfe.new.
> 
> Although it does say "very experimental and likely to change", but can
> we update the call from epdf.openMemStream?

memstreams work but not with that context call yet .. i'lll look at it 
but as said, running 1.09 will trigger different context code and is 
even more experimental ... 1.09 is *not* for production (1.08 is ok)

i'll adapt the context part to the new calls

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
-----------------------------------------------------------------
___________________________________________________________________________________
If your question is of interest to others as well, please add an entry to the Wiki!

maillist : ntg-context@ntg.nl / http://www.ntg.nl/mailman/listinfo/ntg-context
webpage  : http://www.pragma-ade.nl / http://context.aanhet.net
archive  : https://bitbucket.org/phg/context-mirror/commits/
wiki     : http://contextgarden.net
___________________________________________________________________________________