Re: Odd /externalfigure behavior

[Wolfgang Schuster <wolfgang.schuster@gmail.com>]

Am 12.12.2012 um 18:45 schrieb Guy Stalnaker <jstalnak@wisc.edu>:

> All,
> 
> I've been working on a document for weeks and it's been compiling fine. I have a pdf copy from yesterday afternoon at 4p local time, the last time it compiled successfully. I was doing a search/replace on some /crlf to add space between text and an image. The search/replace with Gnome's gedit included \n in both search and replace string. Suddenly context will no longer successfully compile the document! What's very, very odd, is that the context document is an output file from pandoc of a markdown document that has had no issues until now. If I go back now to the original markdown doc and regenerate the context document the issue persists with or without subsequent edit!! Damned peculiar. Here's the workflow:
> 
> pandoc -s -f markdown -t context <file.md> -o <file.context.tex>
> gedit <file.context.tex> to add:
> 
> \defineexternalfigure[screenshot][frame=on]
> 
> and then add [screenshot] to all of the \externalfigure directives. Then find the /crlf that appear immediate before *all* of the \externalfigure directives and double them (unless someone who reads this can tell me how to easily modify the padding of an image when it's placed to increase the spacing between the image and the text above it).
> 
> I've been doing this for many days. Until late yesterday afternoon. Now context spits out this:
> 
> <quote>
> structure       > sectioning > subsubsubsection @ level 6 : 0.0.0.1.3.1 -> One URL for All Projects
> ! LuaTeX error /usr/share/texmf/tex/context/base/l-file.lua:219: bad argument #1 to 'find' (string expected, got nil)
> stack traceback:
>        [C]: in function 'find'
>        /usr/share/texmf/tex/context/base/l-file.lua:219: in function 'collapsepath'
>        /usr/share/texmf/tex/context/base/grph-inc.lua:373: in function 'forbiddenname'
>        /usr/share/texmf/tex/context/base/grph-inc.lua:387: in function </usr/share/texmf/tex/context/base/grph-inc.lua:385>
>        (tail call): ?
>        /usr/share/texmf/tex/context/base/grph-inc.lua:735: in function 'identifier'
>        /usr/share/texmf/tex/context/base/grph-inc.lua:753: in function 'identify'
>        <main ctx instance>:1: in main chunk.
> 
> system          > tex > error on line 330 in file v10TrainingGeneralClassEndUser.contex.tex: LuaTeX error  ...
> 
> 320       How You Get Access
> 321     \stopitemize
> 322
> 323     \subsubsubsection[one-url-for-all-projects]{One URL for All Projects}
> 324
> 325     A {\em project} in WiscWebCMS is the equivalent of a web site. You may
> 326     have access to multiple projects. For all projects you login at
> 327 \useURL[url2][https://wiscwebcms.wisc.edu][][https://wiscwebcms.wisc.edu]\from[url2].
> 328     With WiscWeb CMS you are logging into a web application to edit your
> 329     site.\crlf
> 330 >>  {\externalfigure[images/group54/26378/CMSLogin.jpg]}
> 331
> 332     \subsubsubsection[selecting-your-project]{Selecting Your Project}
> 333
> </quote>
> 
> That happens at the very first \externalfigure in the document. The specific error is:
> 
> ! LuaTeX error /usr/share/texmf/tex/context/base/l-file.lua:219: bad argument #1 to 'find' (string expected, got nil)
> 
> Wah? I can successfully use display from the commandline in the same dir as the context file on that path shown in the quoted output and it opens the image. So, it's not the image file or the path--they are both fine.
> 
> Any ideas anyone?


Do you get the same error message when you put this short example in the same directory as document?

\starttext
\externalfigure[images/group54/26378/CMSLogin.jpg]
\stoptext

Wolfgang
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