query about referring to pdf attachments

query about referring to pdf attachments

[Jesse Alama]

Can one refer to PDF attachments as though they were local files?

I'd like to treat the PDF as a kind of rudimentary filesystem.  
Whatever is attached to the PDF can be found under the "root directory" 
of the PDF.  One could then place hyperlinks to these files which, when 
followed, cause an attachment to be opened (say, a music player, a web 
browser, etc.).  Ideally, one would be able to do something like this:

\useattachment[my-video][my-video.mpg]
\attachment[my-video]
\useURL[my-video-url][file:///my-video.mpg][][Awesome Video]
\starttext
Follow the link to \from[my-video-url]!
\stoptext

The "file:///my-video.mpg" URI is a guess; the idea is to somehow refer 
to a file placed in the PDF's "filesystem".

Jesse


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