Use Michael's format string checker in debug mode.
[ADD] rdf_guess_type/2 next to format variant.
[EXT] Endless retry upon 5xx error now as option.
[FIX] Catch timeout_error.
[FIX] Format string mistakes.
[ADD] file_name_extensions/3 for multiple extensions in a file name.
[FIX] directory_files/3 would not work when not sorting the results.
[SC] same_length/2 i.o. length/2 twice.
[SC] Vastly simplified AP, removing features that we obscure enough to no longer make sense for me today.
[EXT] Added message return parameter, for returning AP results in table rows.
[NEW] Rewrote the archive extraction predicate, now using process_create/3 + Unix tools i.o. library(archive).
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