[Editor Plugin] EpubCheck

[thiago.eec]

Originally Posted by Wolgan

Interesting, do you know what plugin the bird icon one is associated with? The green check is the plugin linked to this thread, and the one I'm currently using.

The ladybug icon is for calibre Check Book tool, not a plugin.

[Quoth]

Originally Posted by thiago.eec

The ladybug icon is for calibre Check Book tool, not a plugin.

Thanks.
it seems to ignore some errors, but offers to fix filenames and IDs that may or may not be an issue.
So I always run it first and then this one at the start of an edit session and after each major session.
I also see what the TOC editor/tool has as there may be items missing or broken.
I might sometimes also use the Fonts tool.

I run the remove excess/duplicate CSS tool after editing 3rd party ebooks. Some may have 100s of unused items or many become duplicates or unused after "fixing" formatting.

I never have an issue on Amazon KDP, Google Playstore Books or Smashwords (who feed Apple, Kobo, Barnes&Noble etc) after a "no errors" on this tool after doing all the other stuff.

So much appreciated.

[JSWolf]

Originally Posted by Wolgan

After updating to Calibre 7.11, running epubcheck in the editor doesn't return any results. Just runs and the results pane does not load.

I did not have a problem with epubcheck in 7.11 and I've tested it in 7.12 and again no problem.

[JSWolf]

Originally Posted by Quoth

Thanks.
it seems to ignore some errors, but offers to fix filenames and IDs that may or may not be an issue.
So I always run it first and then this one at the start of an edit session and after each major session.
I also see what the TOC editor/tool has as there may be items missing or broken.
I might sometimes also use the Fonts tool.

I run the remove excess/duplicate CSS tool after editing 3rd party ebooks. Some may have 100s of unused items or many become duplicates or unused after "fixing" formatting.

I never have an issue on Amazon KDP, Google Playstore Books or Smashwords (who feed Apple, Kobo, Barnes&Noble etc) after a "no errors" on this tool after doing all the other stuff.

So much appreciated.

I do run the calibre check and make sure it comes up with no errors and I also make sure that epubcheck also comes up with no errors. Each can catch errors the other misses.

[Doitsu]

Originally Posted by Wolgan

After updating to Calibre 7.11, running epubcheck in the editor doesn't return any results. Just runs and the results pane does not load.

The plugin worked fine with Calibre 7.11 and Calibre 7.12 on my Windows 11 machine. What's your operating system?

[JSWolf]

Originally Posted by Doitsu

The plugin worked fine with Calibre 7.11 and Calibre 7.12 on my Windows 11 machine. What's your operating system?

And are you also running a 64-bit Java?

[JSWolf]

Originally Posted by Quoth

Thanks.
it seems to ignore some errors, but offers to fix filenames and IDs that may or may not be an issue.
So I always run it first and then this one at the start of an edit session and after each major session.
I also see what the TOC editor/tool has as there may be items missing or broken.
I might sometimes also use the Fonts tool.

I run the remove excess/duplicate CSS tool after editing 3rd party ebooks. Some may have 100s of unused items or many become duplicates or unused after "fixing" formatting.

I never have an issue on Amazon KDP, Google Playstore Books or Smashwords (who feed Apple, Kobo, Barnes&Noble etc) after a "no errors" on this tool after doing all the other stuff.

So much appreciated.

I've never had an issue with any Reader with eBooks that have passed the calibre check and epubcheck or Flightcrew (for Sigil back when) and epubckeck.

One thing I have found that works well is that calibre's check does do a more extensive check on the CSS then epubcheck.

[Wolgan]

Originally Posted by JSWolf

And are you also running a 64-bit Java?

Originally Posted by Doitsu

The plugin worked fine with Calibre 7.11 and Calibre 7.12 on my Windows 11 machine. What's your operating system?

Sorry for the late reply, life hit me and this is the first chance I've had to look at this again.

The problem is resolved. In a surprise to likely nobody in this thread (except me, because I didn't read through it enough), my Java path was messed up. Installing java update didn't set the path correctly and that coincided roughly with the time I updated to Calibre 7.11. Manually set the path in EpubCheck.json and works like a charm now.

Thank you!

[DNSB]

Originally Posted by JSWolf

I've never had an issue with any Reader with eBooks that have passed the calibre check and epubcheck or Flightcrew (for Sigil back when) and epubckeck.

One thing I have found that works well is that calibre's check does do a more extensive check on the CSS then epubcheck.

If you are using Sigil, you can install the CSSValidator plugin. There are other plugins for removing unused CSS from stylesheets, removing non-existent CSS from the HTML files and converting inline styles to a stylesheet.

OTOH, I use calibre's editor for consolidating duplicate stylesheet entries, etc. Both Sigil and calibre's editor do things the other doesn't and so I use both.

Getting back to the EpubCheck plugin, I have found too damn often that installing an update, breaks the link to the java executable.

[Capricorn]

On a windows 11 system (build: 22631.3880), I had Java 8 u411 runtime environment installed. I deinstalled it, then installed Java 8 u421.
Now, I get the following error message, when I run the epubcheck plugin (version 0.2.5) in the Calibre editor (the same error message in the Sigil Editor version 2.2.1 with the plugin):

Spoiler:

Validating using EPUB version 2.0.1 rules.
Messages: 0 fatals / 0 errors / 0 warnings / 0 infos

EPUBCheck completed

java.lang.StackOverflowError
at com.thaiopensource.relaxng.pattern.ChoiceNameClass .contains(ChoiceNameClass.java:16)
at com.thaiopensource.relaxng.pattern.ChoiceNameClass .contains(ChoiceNameClass.java:16)
at com.thaiopensource.relaxng.pattern.ChoiceNameClass .contains(ChoiceNameClass.java:16)
at com.thaiopensource.relaxng.pattern.ChoiceNameClass .contains(ChoiceNameClass.java:16)
at com.thaiopensource.relaxng.pattern.AnyNameExceptNa meClass.contains(AnyNameExceptNameClass.java:

at com.thaiopensource.relaxng.pattern.OverlapDetector .checkOverlap(OverlapDetector.java:68)

com.thaiopensource.relaxng.pattern.DuplicateAttrib uteDetector.checkAttributeOverlap(DuplicateAttribu teDetector.java:
35)

com.thaiopensource.relaxng.pattern.DuplicateAttrib uteDetector.addAttribute(DuplicateAttributeDetecto r.java:30)
at com.thaiopensource.relaxng.pattern.AttributePatter n.checkRestrictions(AttributePattern.java:52)
at com.thaiopensource.relaxng.pattern.ChoicePattern.c heckRestrictions(ChoicePattern.java:31)
at com.thaiopensource.relaxng.pattern.InterleavePatte rn.checkRestrictions(InterleavePattern.java:35)
at com.thaiopensource.relaxng.pattern.InterleavePatte rn.checkRestrictions(InterleavePattern.java:35)
at com.thaiopensource.relaxng.pattern.InterleavePatte rn.checkRestrictions(InterleavePattern.java:35)
at com.thaiopensource.relaxng.pattern.InterleavePatte rn.checkRestrictions(InterleavePattern.java:35)
at com.thaiopensource.relaxng.pattern.InterleavePatte rn.checkRestrictions(InterleavePattern.java:35)
at com.thaiopensource.relaxng.pattern.InterleavePatte rn.checkRestrictions(InterleavePattern.java:35)
at com.thaiopensource.relaxng.pattern.InterleavePatte rn.checkRestrictions(InterleavePattern.java:35)
at com.thaiopensource.relaxng.pattern.InterleavePatte rn.checkRestrictions(InterleavePattern.java:35)
at com.thaiopensource.relaxng.pattern.InterleavePatte rn.checkRestrictions(InterleavePattern.java:35)
at com.thaiopensource.relaxng.pattern.InterleavePatte rn.checkRestrictions(InterleavePattern.java:35)
at com.thaiopensource.relaxng.pattern.InterleavePatte rn.checkRestrictions(InterleavePattern.java:35)
at com.thaiopensource.relaxng.pattern.InterleavePatte rn.checkRestrictions(InterleavePattern.java:35)
at com.thaiopensource.relaxng.pattern.InterleavePatte rn.checkRestrictions(InterleavePattern.java:35)
at com.thaiopensource.relaxng.pattern.InterleavePatte rn.checkRestrictions(InterleavePattern.java:35)
at com.thaiopensource.relaxng.pattern.InterleavePatte rn.checkRestrictions(InterleavePattern.java:35)
at com.thaiopensource.relaxng.pattern.InterleavePatte rn.checkRestrictions(InterleavePattern.java:35)
at com.thaiopensource.relaxng.pattern.InterleavePatte rn.checkRestrictions(InterleavePattern.java:35)
at com.thaiopensource.relaxng.pattern.InterleavePatte rn.checkRestrictions(InterleavePattern.java:35)
at com.thaiopensource.relaxng.pattern.InterleavePatte rn.checkRestrictions(InterleavePattern.java:35)
at com.thaiopensource.relaxng.pattern.InterleavePatte rn.checkRestrictions(InterleavePattern.java:37)
at com.thaiopensource.relaxng.pattern.BinaryPattern.c heckRestrictions(BinaryPattern.java:22)
at com.thaiopensource.relaxng.pattern.GroupPattern.ch eckRestrictions(GroupPattern.java:27)
at com.thaiopensource.relaxng.pattern.BinaryPattern.c heckRestrictions(BinaryPattern.java:22)
at com.thaiopensource.relaxng.pattern.GroupPattern.ch eckRestrictions(GroupPattern.java:27)
at com.thaiopensource.relaxng.pattern.BinaryPattern.c heckRestrictions(BinaryPattern.java:22)
at com.thaiopensource.relaxng.pattern.GroupPattern.ch eckRestrictions(GroupPattern.java:27)
at com.thaiopensource.relaxng.pattern.BinaryPattern.c heckRestrictions(BinaryPattern.java:22)
at com.thaiopensource.relaxng.pattern.GroupPattern.ch eckRestrictions(GroupPattern.java:27)
at com.thaiopensource.relaxng.pattern.ElementPattern. checkRestrictions(ElementPattern.java:42)
at com.thaiopensource.relaxng.pattern.ChoicePattern.c heckRestrictions(ChoicePattern.java:34)
at com.thaiopensource.relaxng.pattern.ChoicePattern.c heckRestrictions(ChoicePattern.java:31)
at com.thaiopensource.relaxng.pattern.ChoicePattern.c heckRestrictions(ChoicePattern.java:31)

14)

Using the older java 8 u411 version did NOT give this error. What can I do to correct this eror? Do I need to change some parameters or....?

Thank you for any information,
Capricorn

[Doitsu]

Originally Posted by Capricorn

On a windows 11 system (build: 22631.3880), I had Java 8 u411 runtime environment installed. I deinstalled it, then installed Java 8 u421.
Now, I get the following error message, when I run the epubcheck plugin (version 0.2.5) in the Calibre editor (the same error message in the Sigil Editor version 2.2.1 with the plugin):

Java 1.8.0_421 works fine on my 64bit Windows 11 machine. You probably installed the 32bit version of Java 1.8.0_421. When you run java -version you should get this output, unless you have a 32bit Windows 11 machine:

java -version
java version "1.8.0_421"
Java(TM) SE Runtime Environment (build 1.8.0_421-b09)
Java HotSpot(TM) 64-Bit Server VM (build 25.421-b09, mixed mode)

If you have a 32bit Windows 11 machine you'll need to change the following preference setting to true.

  "is32bit": true,

[Capricorn]

Arghhh......
Should have realised that.....got bitten by that one before.
Apparently a bug in my brain.

Installed the 64-bit version and everything runs properly again.

Thank you very much for the pointer to 32-bit/64-bit.

[JSWolf]

Originally Posted by Doitsu

32bit Windows 11

There is no 32-bit version of Windows 11.

[Quoth]

Originally Posted by JSWolf

There is no 32-bit version of Windows 11.

And the 32 bit Win 10 was only on a few computers / tablets with too little RAM (crippled Atom cpus that couldn't take more) and was discontinued ages ago.

Last Linux Mint 32 bit was 19.3 and it's at 21.3 now.

Calibre last 32 bit was maybe 5.44, due to QT dropping 32 bit support?

In reality 32 bits with 2 G RAM is plenty, but developers, frameworks and OSes are not supporting it. Nor are screens less than 1920 x 1080 well supported.