Caption to file name?

Question

If I could rename the file name using exif data (Caption) my newspaper would be oh so happy. Or rather, I wouldn't have to do it by hand.
Is this even possible? I see nothing in the file naming on export that leads me to using any sort of metadata. I see that Caption appears when exporting metadata. But renaming DSC_0089.jpg to Big Dog at Wedding would be oh so useful.

Answer 1

Ok actually the CR was in the filename but Finder couldn't really display it. Taking out at the CRs is, for me anyway, the way to go.
So this revised script will do that. It will remove any CR from the caption and replace  it with a space.
set oldTid to my text item delimiters
tell application "Aperture"
          set imageSel to (get selection)
          if imageSel is {} then -- no images selected warn
                    display alert "Select at least one version"
          else -- at least one selected
                    repeat with i from 1 to count of imageSel
                              set my text item delimiters to linefeed
                              get ((value of IPTC tag "Caption/Abstract" of item i of imageSel))
                              set foo to text items of result
                              set my text item delimiters to " "
                              set name of item i of imageSel to (foo as string)
                    end repeat
          end if
end tell
set my text item delimiters to oldTid
The new script will also check for at least one image being selected and if there is not it will put up an alert.
All the other characteres in the caption are left alone. If they don;t cause you any problems when the are used in the exported images file name fine. If they do cause problems thay can be removed also.
I don't see your point here? And isn't this a consequence of your script? I don't think I am exactly clear on the difference between what I wanted (Caption-->File Name) and what we have now (Caption-->Version Name, with Aperture renaming the file in the Finder to Version Name).
I suppose I didn't explain myself well. Let me try again.
The caption will name the version and the version name (which is now the caption) will be used to name the file when you export it from Aperture using the filenaming preset Version name.
The problems might arise once the version is exported from Aperture and put into the file system. As you saw when the CR was imbedded in the file name, some characters can cause problems for the file system. The CR was a minor problem but things like slashes, the period and the pipe symbol (|) have special meaning to the file system and to software outside of Aperture and might cause more significant headaches.
Anyway use the new script and see what happens. If you don't run into any problems then it can be left as it is. If you do run into problems the script can be modified to remove those characters also.
regards