Re: [NTG-context] custom cite in \externalfigure

[Hans Hagen]

On 4/30/2016 10:06 PM, eidenbenz wrote:
Could somebody explain me why this (the part that is commented) doesn't work?
I get the following error:
tex error       > tex error on line 0 in file : ! Emergency stop
<*> cont-yes.mkiv
<empty file>
*** (job aborted, no legal \end found)

because \cite does a lot more than just returning a filename ... you 
need to use the low more level btxfield commands to get the more raw data


Thanks Michael


-------------------------------------------


\startbuffer[duane]

    @image {tug2014,
        title       = "TUG 2014",
        url         = "http://tug.org/tug2014/";,
        url_image   = "http://tug.org/art/tug2014-color.jpg";,
        url_thumb   = "http://tug.org/tug2014/t2014-thumb.jpg";,
        description = "Official drawing of the TUG 2014 conference",
        author      = "Duane Bibby",
        year        = 2014,
    }

\stopbuffer

\definebtxdataset
 [duane]

\usebtxdataset
 [duane]
 [duane.buffer]

\usebtxdefinitions
 [duane]

\definebtxrendering
    [duane]
    [dataset=duane,
     method=local,
    ]

\setupbtxlist
    [duane]
    [number=no]

\startsetups btx:duane:list:image
  \btxfield{title}
\stopsetups

\startsetups btx:duane:cite:external
   {\externalfigure[\btxfield{url_image}][width=10cm]}
\stopsetups

\startsetups btx:duane:cite:filename
   {\btxfield{url_image}}
\stopsetups

\starttext

   \cite[filename][duane::tug2014]\par
   \cite[external][duane::tug2014]\par

   % Why does this not work?
   %\externalfigure[\cite[filename][duane::tug2014]][width=10cm]\par

   \placebtxrendering[duane]

\stoptext


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___________________________________________________________________________________
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://tex.aanhet.net
archive  : http://foundry.supelec.fr/projects/contextrev/
wiki     : http://contextgarden.net
___________________________________________________________________________________