I am working a "Christmas tree packet" version of a kind of (version 3.0) ePub I am working on, and I would like help understanding the results. This ePub includes images, and is available from https://cjshayward.com/wp-content/project/EVERYTHING.epub.
The ePub Check results were:
Detected version: Could not determine version.
Results: The following problems were found in EVERYTHING.epub:
Type File Line Position Message
ERROR
./tmp/uploads/1510845141245_0000503385/inputFile/EVERYTHING.epub/EVERYTHING.epub - - The mimetype file has an extra field of length 28. The use of the extra field feature of the ZIP format is not permitted for the mimetype file.
ERROR OEBPS/content.opf - - Error while parsing file 'A pseudo attribute name is expected. '.
ERROR OEBPS/content.opf - - There was an error when parsing the EPUB version: Version not found.
The first error has me puzzled; I got that error before when I had a mimetype with a line break at the end. Python seems to think I have the mimetype I now intend:
>>> print(repr(open('mimetype').read()))
'application/epub+zip'
I am also not sure how to interpret the comments about content.opf. I tried to specify a version in the .opf file, and I don't know what "A pseudo attribute name is expected." That file reads:
<?xml version="1.0" encoding="UTF-8">
<package xmlns="http://www.idpf.org/2007/opf" unique-identifier="BookID"
version="3.0">
<metadata xmlns:dc="http://purl.org/dc/elements/1.1/"
xmlns:opf="http://www.idpf.org/2007/opf">
<dc:title>Unvera Announces New Kool-Aid Line</dc:title>
<dc:creator opf:role="aut">C.J.S. Hayward</dc:creator>
<dc:language>en-US</dc:language>
<dc:rights>© 1993-2017 by C.J.S. Hayward. Distribute freely.</dc:rights>
<dc:publisher>C.J.S. Hayward Publications, CJSHayward.com</dc:publisher>
<dc:identifier id="BookID"
opf:scheme="UUID">C.J.S. HaywardEVERYTHING</dc:identifier>
<meta name="cover" content="cover-image" />
</metadata>
<manifest>
<item id="cover-image" href="cover.jpg" media-type="image/jpeg" />
<item id="ncx" href="toc.xhtml" media-type="application/x-dtbncx+xml" />
<item id="style" href="stylesheet.css" media-type="text/css" />
<item id="pagetemplate" href="page-template.xpgt"
media-type="application/vnd.adobe-page-template+xml" />
<item id="titlepage" href="title-page.xhtml"
media-type="application/xhtml+xml" />
<item id="letters" href="letters.xhtml" media-type="application/xhtml+xm
l" />
<item id="doxology" href="doxology.xhtml" media-type="application/xhtml+xml" />
<item id="narnia" href="narnia.xhtml" media-type="application/xhtml+xml" />
<item id="apprentice" href="apprentice.xhtml" media-type="application/xhtml+xml"
/>
<item id="singularity" href="singularity.xhtml" media-type="application/xhtml+xm
l" />
<item id="providence" href="providence.xhtml" media-type="application/xhtml+xml"
/>
<item id="spectacles" href="spectacles.xhtml" media-type="application/xhtml+xml"
/>
<item id="druid" href="druid.xhtml" media-type="application/xhtml+xml" />
<item id="plato" href="plato.xhtml" media-type="application/xhtml+xml" />
<item id="monk" href="monk.xhtml" media-type="application/xhtml+xml" />
<item id="gandhi" href="gandhi.xhtml" media-type="application/xhtml+xml" />
<item id="alchemy" href="alchemy.xhtml" media-type="application/xhtml+xml" />
<item id="philaret" href="philaret.xhtml" media-type="application/xhtml+xml" />
<item id="silence" href="silence.xhtml" media-type="application/xhtml+xml" />
<item id="rules-of-engagement" href="rules-of-engagement.xhtml" media-type="appl
ication/xhtml+xml" />
<item id="technonomicon" href="technonomicon.xhtml" media-type="application/xhtm
l+xml" />
<item id="steel" href="steel.xhtml" media-type="application/xhtml+xml" />
<item id="memoirs" href="memoirs.xhtml" media-type="application/xhtml+xml" />
<item id="pet" href="pet.xhtml" media-type="application/xhtml+xml" />
<item id="backswing" href="backswing.xhtml" media-type="application/xhtml+xml" /
>
<item id="physics" href="physics.xhtml" media-type="application/xhtml+xml" />
<item id="commentary" href="commentary.xhtml" media-type="application/xhtml+xml"
/>
<item id="decisive" href="decisive.xhtml" media-type="application/xhtml+xml" />
<item id="exotic" href="exotic.xhtml" media-type="application/xhtml+xml" />
<item id="arena" href="arena.xhtml" media-type="application/xhtml+xml" />
<item id="humility-royal-race" href="humility-royal-race.xhtml" media-type="appl
ication/xhtml+xml" />
<item id="money" href="money.xhtml" media-type="application/xhtml+xml" />
<item id="luddite" href="luddite.xhtml" media-type="application/xhtml+xml" />
<item id="grail" href="grail.xhtml" media-type="application/xhtml+xml" />
<item id="best" href="best.xhtml" media-type="application/xhtml+xml" />
<item id="hymn" href="hymn.xhtml" media-type="application/xhtml+xml" />
<item id="new-face-old-ecumenism" href="new-face-old-ecumenism.xhtml" media-type
="application/xhtml+xml" />
<item id="ecumenism" href="ecumenism.xhtml" media-type="application/xhtml+xml" /
>
<item id="pope" href="pope.xhtml" media-type="application/xhtml+xml" />
<item id="calvinist" href="calvinist.xhtml" media-type="application/xhtml+xml" /
>
<item id="stephanos" href="stephanos.xhtml" media-type="application/xhtml+xml" /
>
<item id="gamechanger" href="gamechanger.xhtml" media-type="application/xhtml+xm
l" />
<item id="father" href="father.xhtml" media-type="application/xhtml+xml" />
<item id="death" href="death.xhtml" media-type="application/xhtml+xml" />
<item id="open" href="open.xhtml" media-type="application/xhtml+xml" />
<item id="no_rights" href="no_rights.xhtml" media-type="application/xhtml+xml" /
>
<item id="knights" href="knights.xhtml" media-type="application/xhtml+xml" />
<item id="women" href="women.xhtml" media-type="application/xhtml+xml" />
<item id="naturally-inclusive-language" href="naturally-inclusive-language.xhtml
" media-type="application/xhtml+xml" />
<item id="greek" href="greek.xhtml" media-type="application/xhtml+xml" />
<item id="picture" href="picture.xhtml" media-type="application/xhtml+xml" />
<item id="unashamed" href="unashamed.xhtml" media-type="application/xhtml+xml" /
>
<item id="unman" href="unman.xhtml" media-type="application/xhtml+xml" />
<item id="avatar" href="avatar.xhtml" media-type="application/xhtml+xml" />
<item id="dark_patterns" href="dark_patterns.xhtml" media-type="application/xhtm
l+xml" />
<item id="contraception" href="contraception.xhtml" media-type="application/xhtm
l+xml" />
<item id="life" href="life.xhtml" media-type="application/xhtml+xml" />
<item id="social-antibodies" href="social-antibodies.xhtml" media-type="applicat
ion/xhtml+xml" />
<item id="desire" href="desire.xhtml" media-type="application/xhtml+xml" />
<item id="transcendent" href="transcendent.xhtml" media-type="application/xhtml+
xml" />
<item id="author" href="author.xhtml" media-type="application/xhtml+xml" />
<item id="interview" href="interview.xhtml" media-type="application/xhtml+xml" /
>
<item id="negotiation" href="negotiation.xhtml" media-type="application/xhtml+xm
l" />
<item id="theory-of-alien-minds" href="theory-of-alien-minds.xhtml" media-type="
application/xhtml+xml" />
<item id="seraphim" href="seraphim.xhtml" media-type="application/xhtml+xml" />
<item id="dastardly-duo" href="dastardly-duo.xhtml" media-type="application/xhtm
l+xml" />
<item id="religion-science" href="religion-science.xhtml" media-type="applicatio
n/xhtml+xml" />
<item id="chemistry" href="chemistry.xhtml" media-type="application/xhtml+xml" /
>
<item id="creation" href="creation.xhtml" media-type="application/xhtml+xml" />
<item id="evolution" href="evolution.xhtml" media-type="application/xhtml+xml" /
>
<item id="meatspace" href="meatspace.xhtml" media-type="application/xhtml+xml" /
>
<item id="grinch" href="grinch.xhtml" media-type="application/xhtml+xml" />
<item id="icons" href="icons.xhtml" media-type="application/xhtml+xml" />
<item id="and_all_that" href="and_all_that.xhtml" media-type="application/xhtml+
xml" />
<item id="God" href="God.xhtml" media-type="application/xhtml+xml" />
<item id="monasticism" href="monasticism.xhtml" media-type="application/xhtml+xm
l" />
<item id="sacrament" href="sacrament.xhtml" media-type="application/xhtml+xml" /
>
<item id="dream" href="dream.xhtml" media-type="application/xhtml+xml" />
<item id="evil" href="evil.xhtml" media-type="application/xhtml+xml" />
<item id="amusement" href="amusement.xhtml" media-type="application/xhtml+xml" /
>
<item id="refutatio" href="refutatio.xhtml" media-type="application/xhtml+xml" /
>
<item id="grace" href="grace.xhtml" media-type="application/xhtml+xml" />
<item id="waste" href="waste.xhtml" media-type="application/xhtml+xml" />
<item id="yonder" href="yonder.xhtml" media-type="application/xhtml+xml" />
<item id="sermon" href="sermon.xhtml" media-type="application/xhtml+xml" />
<item id="math-thesis" href="math-thesis.xhtml" media-type="application/xhtml+xm
l" />
<item id="ai" href="ai.xhtml" media-type="application/xhtml+xml" />
<item id="augustine" href="augustine.xhtml" media-type="application/xhtml+xml" /
>
<item id="cultures" href="cultures.xhtml" media-type="application/xhtml+xml" />
<item id="janra" href="janra.xhtml" media-type="application/xhtml+xml" />
<item id="maximos" href="maximos.xhtml" media-type="application/xhtml+xml" />
<item id="profoundly-gifted" href="profoundly-gifted.xhtml" media-type="applicat
ion/xhtml+xml" />
<item id="blackbird" href="blackbird.xhtml" media-type="application/xhtml+xml" /
>
<item id="fast_track" href="fast_track.xhtml" media-type="application/xhtml+xml"
/>
<item id="msbp" href="msbp.xhtml" media-type="application/xhtml+xml" />
<item id="converts" href="converts.xhtml" media-type="application/xhtml+xml" />
<item id="jobs" href="jobs.xhtml" media-type="application/xhtml+xml" />
<item id="bac" href="bac.xhtml" media-type="application/xhtml+xml" />
<item id="firestorm" href="firestorm.xhtml" media-type="application/xhtml+xml" /
>
<item id="monastery" href="monastery.xhtml" media-type="application/xhtml+xml" /
>
<item id="repentance-heavens-best-kept-secret" href="repentance-heavens-best-kep
t-secret.xhtml" media-type="application/xhtml+xml" />
<item id="oops" href="oops.xhtml" media-type="application/xhtml+xml" />
<item id="glimpse" href="glimpse.xhtml" media-type="application/xhtml+xml" />
<item id="stranger" href="stranger.xhtml" media-type="application/xhtml+xml" />
<item id="customer" href="customer.xhtml" media-type="application/xhtml+xml" />
<item id="orb" href="orb.xhtml" media-type="application/xhtml+xml" />
<item id="treasure" href="treasure.xhtml" media-type="application/xhtml+xml" />
<item id="martial-arts" href="martial-arts.xhtml" media-type="application/xhtml+
xml" />
<item id="link-prospectors" href="link-prospectors.xhtml" media-type="applicatio
n/xhtml+xml" />
<item id="spam" href="spam.xhtml" media-type="application/xhtml+xml" />
<item id="character-sheet" href="character-sheet.xhtml" media-type="application/
xhtml+xml" />
<item id="supercomputers" href="supercomputers.xhtml" media-type="application/xh
tml+xml" />
<item id="voyage" href="voyage.xhtml" media-type="application/xhtml+xml" />
<item id="dictionary" href="dictionary.xhtml" media-type="application/xhtml+xml"
/>
<item id="watch" href="watch.xhtml" media-type="application/xhtml+xml" />
<item id="disruptive-unbranding" href="disruptive-unbranding.xhtml" media-type="
application/xhtml+xml" />
<item id="mindstorm" href="mindstorm.xhtml" media-type="application/xhtml+xml" /
>
<item id="kool-aid" href="kool-aid.xhtml" media-type="application/xhtml+xml" />
</manifest>
<spine toc="ncx">
<itemref idref="titlepage" />
<itemref idref="letters" />
<itemref idref="doxology" />
<itemref idref="narnia" />
<itemref idref="apprentice" />
<itemref idref="singularity" />
<itemref idref="providence" />
<itemref idref="spectacles" />
<itemref idref="druid" />
<itemref idref="plato" />
<itemref idref="monk" />
<itemref idref="gandhi" />
<itemref idref="alchemy" />
<itemref idref="philaret" />
<itemref idref="silence" />
<itemref idref="rules-of-engagement" />
<itemref idref="technonomicon" />
<itemref idref="steel" />
<itemref idref="memoirs" />
<itemref idref="pet" />
<itemref idref="backswing" />
<itemref idref="physics" />
<itemref idref="commentary" />
<itemref idref="decisive" />
<itemref idref="exotic" />
<itemref idref="arena" />
<itemref idref="humility-royal-race" />
<itemref idref="money" />
<itemref idref="luddite" />
<itemref idref="grail" />
<itemref idref="best" />
<itemref idref="hymn" />
<itemref idref="new-face-old-ecumenism" />
<itemref idref="ecumenism" />
<itemref idref="pope" />
<itemref idref="calvinist" />
<itemref idref="stephanos" />
<itemref idref="gamechanger" />
<itemref idref="father" />
<itemref idref="death" />
<itemref idref="open" />
<itemref idref="no_rights" />
<itemref idref="knights" />
<itemref idref="women" />
<itemref idref="naturally-inclusive-language" />
<itemref idref="greek" />
<itemref idref="picture" />
<itemref idref="unashamed" />
<itemref idref="unman" />
<itemref idref="avatar" />
<itemref idref="dark_patterns" />
<itemref idref="contraception" />
<itemref idref="life" />
<itemref idref="social-antibodies" />
<itemref idref="desire" />
<itemref idref="transcendent" />
<itemref idref="author" />
<itemref idref="interview" />
<itemref idref="negotiation" />
<itemref idref="theory-of-alien-minds" />
<itemref idref="seraphim" />
<itemref idref="dastardly-duo" />
<itemref idref="religion-science" />
<itemref idref="chemistry" />
<itemref idref="creation" />
<itemref idref="evolution" />
<itemref idref="meatspace" />
<itemref idref="grinch" />
<itemref idref="icons" />
<itemref idref="and_all_that" />
<itemref idref="God" />
<itemref idref="monasticism" />
<itemref idref="sacrament" />
<itemref idref="dream" />
<itemref idref="evil" />
<itemref idref="amusement" />
<itemref idref="refutatio" />
<itemref idref="grace" />
<itemref idref="waste" />
<itemref idref="yonder" />
<itemref idref="sermon" />
<itemref idref="math-thesis" />
<itemref idref="ai" />
<itemref idref="augustine" />
<itemref idref="cultures" />
<itemref idref="janra" />
<itemref idref="maximos" />
<itemref idref="profoundly-gifted" />
<itemref idref="blackbird" />
<itemref idref="fast_track" />
<itemref idref="msbp" />
<itemref idref="converts" />
<itemref idref="jobs" />
<itemref idref="bac" />
<itemref idref="firestorm" />
<itemref idref="monastery" />
<itemref idref="repentance-heavens-best-kept-secret" />
<itemref idref="oops" />
<itemref idref="glimpse" />
<itemref idref="stranger" />
<itemref idref="customer" />
<itemref idref="orb" />
<itemref idref="treasure" />
<itemref idref="martial-arts" />
<itemref idref="link-prospectors" />
<itemref idref="spam" />
<itemref idref="character-sheet" />
<itemref idref="supercomputers" />
<itemref idref="voyage" />
<itemref idref="dictionary" />
<itemref idref="watch" />
<itemref idref="disruptive-unbranding" />
<itemref idref="mindstorm" />
<itemref idref="kool-aid" />
</spine>
<guide>
<reference href="cover.html" type="cover" title="Cover" />
</guide>
</package>
The 2M ePub (hence not attached to this email) is at https://cjshayward.com/project/EVERYTHING.epub.
--UPDATE--
I am using content, originally mostly available from my website, and it's a large collection; calibre's performance characteristics mean that the visitor will experience a webpage timeout on downloading the larger collections, taking 96 seconds to do the complete (8M) collection.
I'm trying to circumvent Calibre's performance characterics to do something more low-level and faster. Meaning learning more.
(N.B. I've gone through the individual .xhtml files until they validate as XHTML 1.1.)
