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Trane · 01-19-2019, 05:03 PM

Hello DiapDealer...

Found an old thread where you answered the question I have, which is how to use the ISBN in the metadata, vs the UUID... but I am new to opf and metadata code and am too dense ... I kindly need an example of what you mean. You said in this previous post in 2013):

"It's quite trivial to change your ePub to use the ISBN identifier as the unique identifier (in Sigil) and get rid of the autogenerated UUID at any time, however:

"Add the ISBN metadata (either through the metadata editor or add it manually in the OPF). Open the OPF file and add an id attribute to the isbn dc:indentifier entry you just created (I often use "isbn" but just so long as it's not the same as the "unique-identifier" attribute of the "package" element). Then change the "unique-identifier" attribute of the "package" element to match the id you just created for your ISBN entry. Save the epub and delete the entire <dc:identifier></dc:identifier> entry for the old UUID from the OPF."

You lost me at "add an id attribute to the isbn identifier..."

This is the relevant code (I think):

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

<metadata xmlnspf="http://www.idpf.org/2007/opf" xmlns:dc="http://purl.org/dc/elements/1.1/">

<dc:identifier opf:scheme="ISBN">ISBN [isbn # here]</dc:identifier>

I don't know the protocol for adding an attribute to a dc element.. ? If it needs dashes or underscores or colons or a single space or what? Sorry! Could you give an example...? I'd really appreciate it.

01-19-2019, 05:03 PM	#1
Trane Groupie Posts: 165 Karma: 51147 Join Date: Dec 2016 Device: android tablet	@DiapDealer ISBN vs UUID Hello DiapDealer... Found an old thread where you answered the question I have, which is how to use the ISBN in the metadata, vs the UUID... but I am new to opf and metadata code and am too dense ... I kindly need an example of what you mean. You said in this previous post in 2013): "It's quite trivial to change your ePub to use the ISBN identifier as the unique identifier (in Sigil) and get rid of the autogenerated UUID at any time, however: "Add the ISBN metadata (either through the metadata editor or add it manually in the OPF). Open the OPF file and add an id attribute to the isbn dc:indentifier entry you just created (I often use "isbn" but just so long as it's not the same as the "unique-identifier" attribute of the "package" element). Then change the "unique-identifier" attribute of the "package" element to match the id you just created for your ISBN entry. Save the epub and delete the entire <dc:identifier></dc:identifier> entry for the old UUID from the OPF." You lost me at "add an id attribute to the isbn identifier..." This is the relevant code (I think): <package version="2.0" unique-identifier="BookId" xmlns="http://www.idpf.org/2007/opf"> <metadata xmlnspf="http://www.idpf.org/2007/opf" xmlns:dc="http://purl.org/dc/elements/1.1/"> <dc:identifier opf:scheme="ISBN">ISBN [isbn # here]</dc:identifier> I don't know the protocol for adding an attribute to a dc element.. ? If it needs dashes or underscores or colons or a single space or what? Sorry! Could you give an example...? I'd really appreciate it.