When running the dtbook-to-epub3 script on DAISY books that have pagebreaks in them, the EPUB3 result should have an OPF file that passes epubcheck.
Actual Behavior
Running epubcheck against the generated output generates a report noting an issue with a meta item in the OPF.
{ "ID" : "OPF-028", "severity" : "ERROR", "message" : "Undeclared prefix: \"dc\".", "additionalLocations" : 0, "locations" : [ { "url" : { "opaque" : false, "hierarchical" : true }, "path" : "EPUB/package.opf", "line" : 2, "column" : 1359, "context" : null }
The line that this points to in the attached EPUB3 OPF is this:
<meta xmlns:f="http://www.daisy.org/ns/pipeline/internal-functions" xmlns:pf="http://www.daisy.org/ns/pipeline/functions" xmlns:rdfa="rdfa-functions" property="dc:date">2023-04-20T22:13:09+00:00</meta>
Steps to Reproduce
The sample book in #674 exhibits this issue, so refer to the EPUB3 output from that.
The epubcheck report was then generated with this:
epubcheck --json Sherlock_Holmes-epubcheck.json The_Adventures_of_Sherlock_H.epub
Expected Behavior
When running the dtbook-to-epub3 script on DAISY books that have pagebreaks in them, the EPUB3 result should have an OPF file that passes epubcheck.
Actual Behavior
Running epubcheck against the generated output generates a report noting an issue with a meta item in the OPF.
{ "ID" : "OPF-028", "severity" : "ERROR", "message" : "Undeclared prefix: \"dc\".", "additionalLocations" : 0, "locations" : [ { "url" : { "opaque" : false, "hierarchical" : true }, "path" : "EPUB/package.opf", "line" : 2, "column" : 1359, "context" : null }
The line that this points to in the attached EPUB3 OPF is this:
<meta xmlns:f="http://www.daisy.org/ns/pipeline/internal-functions" xmlns:pf="http://www.daisy.org/ns/pipeline/functions" xmlns:rdfa="rdfa-functions" property="dc:date">2023-04-20T22:13:09+00:00</meta>
Steps to Reproduce
The sample book in #674 exhibits this issue, so refer to the EPUB3 output from that.
The epubcheck report was then generated with this:
epubcheck --json Sherlock_Holmes-epubcheck.json The_Adventures_of_Sherlock_H.epub
Environment
Logs
epubcheck JSON report