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Jellby · 06-07-2021, 02:59 AM

I'm no XML expert, but I think that with

Code:

<package version="2.0" unique-identifier="ISBN" xmlns="http://www.idpf.org/2007/opf">

you have a single namespace (xmlns) and there's no ambiguity, while with

Code:

<package version="2.0" unique-identifier="ISBN" xmlns:dcterms="http://purl.org/dc/terms/" xmlns:tei="http://www.tei-c.org/ns/1.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:dc="http://purl.org/dc/elements/1.1/" xmlns:opf="http://www.idpf.org/2007/opf">

you're specifying 5 namespaces (dcterms, tei, xsi, dc, opf) and you should explicitly indicate which one applies to the element, i.e., <opf:package ...>.

06-07-2021, 02:59 AM	#2
Jellby frumious Bandersnatch Posts: 7,550 Karma: 19500001 Join Date: Jan 2008 Location: Spaniard in Sweden Device: Cybook Orizon, Kobo Aura	I'm no XML expert, but I think that with Code: <package version="2.0" unique-identifier="ISBN" xmlns="http://www.idpf.org/2007/opf"> you have a single namespace (xmlns) and there's no ambiguity, while with Code: <package version="2.0" unique-identifier="ISBN" xmlns:dcterms="http://purl.org/dc/terms/" xmlns:tei="http://www.tei-c.org/ns/1.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:dc="http://purl.org/dc/elements/1.1/" xmlns:opf="http://www.idpf.org/2007/opf"> you're specifying 5 namespaces (dcterms, tei, xsi, dc, opf) and you should explicitly indicate which one applies to the element, i.e., <opf:package ...>.