Comments (9)
Marcello1173214
commented on June 2, 2024
@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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shoesforindustry
commented on June 2, 2024
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 <dc:language>en</dc:language>, is that what you were asking?
If using Panodc then see the ePub section for more information:
https://pandoc.org/MANUAL.html#epubs
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:
<html lang="en">
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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Marcello1173214
commented on June 2, 2024
@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)
Ensures the OPF XML language is provided
Add the missing OPF xml:lang attribute". Conversely, if I put this value in the opf, as ACE says, it gives me an error in epub checker: "xml:lang attribute is not allowed in the opf file". It therefore seems that there is a bug in ACE that doesn't take into account that the language attribute in epub 2 can only be put in the metadata.
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shoesforindustry
commented on June 2, 2024
@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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Marcello1173214
commented on June 2, 2024
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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From: shoes for industry ***@***.***>
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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)
@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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shoesforindustry
commented on June 2, 2024
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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Marcello1173214
commented on June 2, 2024
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?
Inviato da Outlook per Android<https://aka.ms/AAb9ysg>
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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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Reply to this email directly, view it on GitHub<#9469 (comment)>, or unsubscribe<https://github.com/notifications/unsubscribe-auth/BINNUXWINNT73J4G4G4OXLDZCCI5RAVCNFSM6AAAAABDMPVQKKVHI2DSMVQWIX3LMV43OSLTON2WKQ3PNVWWK3TUHMZDCMBXGIYTMMZXGE>.
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shoesforindustry
commented on June 2, 2024
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?
Inviato da Outlook per Android<https://aka.ms/AAb9ysg>
…________________________________
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?
—
Reply to this email directly, view it on GitHub<#9469 (comment)>, or unsubscribe<https://github.com/notifications/unsubscribe-auth/BINNUXWINNT73J4G4G4OXLDZCCI5RAVCNFSM6AAAAABDMPVQKKVHI2DSMVQWIX3LMV43OSLTON2WKQ3PNVWWK3TUHMZDCMBXGIYTMMZXGE>.
You are receiving this because you were mentioned.Message ID: ***@***.***>
—Reply to this email directly, view it on GitHub, or unsubscribe.You are receiving this because you were mentioned.Message ID: ***@***.***>
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Marcello1173214
commented on June 2, 2024
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?
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!
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