...The tool also accepts a regular expression to match or exclude files from source directory.
We wrote the parser becasuse we had a directory with 3k+ images, of which an unknown number were attached in Specify. Using the Specify attachment import wizard was not an option, as it will re-import and duplicate the images already present in Specify. The Specify Attachment Parser allowed us to rapidly identify the 466 images missing from Specify, copy them to a target directory, and use the Specify attachment import wizard to attach them.