ePub v2 fails validation with ePubCheck in pandoc 3.1.12 - worked previously #9469
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@shoesforindustry @jgm Hi, I'm not a developer but a mere mortal who creates EPUB 2. Please can you tell me the solution in a simple way? (xml:lang is not allowed in the opf file for epub 2 but if I remove it it gives me an error in ACE by Daisy). I can't understand from the coded solution you put. I put language in every html file with the Sigil plugin (Access-aide) but it doesn't solve. I'll leave an email if you want to discuss but a comment here is also fine. Thank you. [email protected] |
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Hi @Marcello1173214, I am not sure what you are asking. To put the language into the content.opf of an ePub2 it would be part of the opf metadata like If using Panodc then see the ePub section for more information: You could also add this language attribute using the metdata editor in Sigil. I don't think you need the language in the HTML, but I guess it would not hurt, something like: If all is correct the epub will pass both ePubCheck and ACE validation. Either Pandoc or Sigil should be able to create valid ePubs without editing the content.opf file :) Hope this helps. |
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@shoesforindustry Yes, it should be like this, the problem is that if I put the language only in the metadata (dc:languageit-IT</dc:language>) it passes validation only with epubchecker, while in ACE it gives me this error "The language must be specified (xml:lang in OPF package) |
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@Marcello1173214 Odd as I have just tried one of my Epub2 files and it passes epubcheck and Ace? Can you publish one of your epubs that fails? |
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Unfortunately, my client contractually prevents me from disclosing work files. Can you pass me one of yours instead? I would be grateful because from 2025 the accessibility requirements are mandatory and I don't know how to solve this ACE error.
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Subject: Re: [jgm/pandoc] ePub v2 fails validation with ePubCheck in pandoc 3.1.12 - worked previously (Issue #9469)
@Marcello1173214<https://github.com/Marcello1173214> Odd as I have just tried one of my Epub2 files and it passes epubcheck and Ace? Can you publish one of your epubs that fails?
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I am unable to at present, but if you are producing epub2 books then I think ACE only checks against epub3? So you would have to produce an epub3? |
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Are you sure that Ace checks only epub 3?
For now I'm not doing epub 3 to make ebooks compatible with older reading devices but it could actually be a solution to switch to epub 3 before 2025. Do you know if I will have problems with this change? Meaning: does the code change much? Will I need to take a refresher course?
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Subject: Re: [jgm/pandoc] ePub v2 fails validation with ePubCheck in pandoc 3.1.12 - worked previously (Issue #9469)
I am unable to at present, but if you are producing epub2 books then I think ACE only checks against epub3? So you would have to produce an epub3?
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I am pretty sure Ace only checks epub3 which has been around since 2011! I use pandoc which produces epub3 by default. I presume it is similar for Sigma?On 13 May 2024, at 11:43, Marcello1173214 ***@***.***> wrote:
Are you sure that Ace checks only epub 3?
For now I'm not doing epub 3 to make ebooks compatible with older reading devices but it could actually be a solution to switch to epub 3 before 2025. Do you know if I will have problems with this change? Meaning: does the code change much? Will I need to take a refresher course?
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From: shoes for industry ***@***.***>
Sent: Monday, May 13, 2024 12:30:48 PM
To: jgm/pandoc ***@***.***>
Cc: Marcello1173214 ***@***.***>; Mention ***@***.***>
Subject: Re: [jgm/pandoc] ePub v2 fails validation with ePubCheck in pandoc 3.1.12 - worked previously (Issue #9469)
I am unable to at present, but if you are producing epub2 books then I think ACE only checks against epub3? So you would have to produce an epub3?
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So that explains everything (I didn't know this as I had never read anything about it on the Daisy website). I use Sigil and in fact there is a plugin that allows you to convert from epub 2 to 3 although, working as a professional, I think I will learn to work directly with epub 3. Thank you for your help! |
Validating an ePub v2 with ePubCheck fails validation with the following errors in pandoc 3.1.12. The same validation on the same ePub worked in the previous version:
Validating using EPUB version 2.0.1 rules.
ERROR(RSC-005): ./book.epub/EPUB/content.opf(2,108): Error while parsing file: attribute "xml:lang" not allowed here; expected attribute "id" or "unique-identifier"These two are repeated 6 more times:
ERROR(RSC-005): ./book.epub/EPUB/content.opf(27,36): Error while parsing file: element "meta" missing required attribute "content"ERROR(RSC-005): ./book.epub/EPUB/content.opf(27,43): Error while parsing file: text not allowed here; expected the element end-tagIt seems maybe the accessibility and
xml:langstuff that was added in pandoc 3.1.12 version should not be included for epub2 as it won't validate?The text was updated successfully, but these errors were encountered: