xlcnd/isbnlib-bnf

An isbnlib plugin that adds BnF (database of French books) as a metadata provider.

isbnlib-bnf's Issues

Incorrect isbn after ean13

Hello,

First of all, thanks for this great plugin.
I get empty result when I try to search for ISBN 2-8001-2133-5 using meta function from isbnlib.
After further investigation, I found it comes from the query function from isbnlib, converting isbn into EAN13. (2-8001-2133-5 to 9782800121338)
This does not seem to work with your current query function in _bnf.

However, when I use your query from _bnf with the isbn 2-8001-2133-5 directly, the answer is not empty and I get good results.

I also noticed that the parsing of authors is incomplete. For this isbn, the authors are coma separated.

Possible fix is to do the search on ean field instead of isbn, since isbnlib always do the conversion.

Best regards,