OPF metadata parsing (otherMetadata)

[danielweck]

The current parsing code hard-codes support for dc:source and dc:rights, but there are many other possibilities such as cc:attributionURL (<package prefix="cc: http://creativecommons.org/ns#">), a11y:certifiedBy ( http://www.idpf.org/epub/vocab/package/a11y/# ), dcterms:conformsTo, schema:accessModeSufficient, etc.

Any <meta property="NAME">VALUE</meta> or <meta name="NAME" value="VALUE"> not "natively" supported should be passed to otherMetadata, without hard-coding particular names.

https://github.com/readium/r2-streamer-swift/blob/1cc6dc1c683b12592b052c80669302f9c36efcdd/Sources/parser/EPUB/OPFParser.swift#L89-L93

[danielweck]

Related issue: readium/r2-shared-js#16

[danielweck]

Regarding dc:source and dc:rights, see: readium/webpub-manifest#14

[mickael-menu-mantano]

readium/r2-streamer-swift#105 fixes this partially. <meta property="x"/> are added to otherMetadata, but dc:source and dc:rights are still hard-coded because they can appear like that: <dc:rights>Public domain</dc:rights>. Additional discussion regarding this can be found here: readium/webpub-manifest#14 (comment)