On 27 Jan 2018, at 11:43, Wolfgang Schuster wrote: […] \defineexpandable\...{…}

Hi Wolfgang, Thanks again! Indeed \defineexpandable\authorpicture{hacker.jpg} solves the problem in the simplified case I was reporting. However in the real case, the file « hacker.jpg » is in fact a file which depends on other variables, and when I include \defineexpandable in the \getvariable environment then it does not work anymore: saying \defineexpandable\authorpicture{\getvariable{talk}{picture}} or \defineexpandable\authorpicture{\expanded{\getvariable{talk}{picture}}} or \defineexpandable\authorpicture{\expandafter\getvariable{talk}{picture}} does not solve the problem. Below is a minimal example showing the issue (with what you taught me last week…). Best regards: OK \starttext \startbuffer[pagetalk] \starttabulate[|f{\bi}l|p|][before=]% \NC Speaker \EQ \getvariable{talk}{speakerfirstname} {\sc \getvariable{talk}{speakername}} \NC\NR \NC Title \EQ \getvariable{talk}{title} \NC\NR \stoptabulate \defineexpandable\authorpicture{\getvariable{talk}{picture}} \placefigure[here][]{} {\externalfigure[\authorpicture]} \page \stopbuffer \setvariable{talk}{set}{\getbuffer[pagetalk]} \setvariables[talk]% [speakername={Hacker}, title={Up to date hacking}, picture=hacker.jpg ] \stoptext

On 27 Jan 2018, at 12:39, Wolfgang Schuster wrote:

...

[…] […] You’re missing a coma after “picture=hacker.jpg” which results in “jpeg ” (which a space at the end) as file extension for the image.

Yes indeed this was the issue… In fact I had tested « picture={hacker.jpg} » without the comma and that one also did not work, while with a comma as in « picture={hacker.jpg}, » the filename is well understood. Many thanks and best regards: OK