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Old 10-24-2015, 07:05 AM   #1
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Split an EPUB into more HTML files
Hello, is there a way to split an XHTML file within an EPUB into more files (for example before the headings), while keeping all the correct internal links, such as notes and TOC?

I know I could do this by converting from EPUB to EPUB with calibre, but is there a cleaner way?

Ty
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Old 10-24-2015, 07:42 AM   #2
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Quote:
Originally Posted by 1v4n0 View Post
Hello, is there a way to split an XHTML file within an EPUB into more files (for example before the headings), while keeping all the correct internal links, such as notes and TOC?

I know I could do this by converting from EPUB to EPUB with calibre, but is there a cleaner way?

Ty

Yes, you can. Just open the epub, set the cursor where you can split the .xhtml file and then go to Edit/Split at Cursor. See the picture below:

Click image for larger version Name: Image1.png Views: 970 Size: 100.6 KB ID: 143133

Another method is by inserting a split marker. Set the cursor where you want the .xhtml file splitted and then go to Insert/Split Marker.

Click image for larger version Name: Image2.png Views: 560 Size: 105.3 KB ID: 143134

Once you have inserted all split marker you want, press F6 (or go to Edit/Split at Marker). With this last method and a bit of regex you can split an epub very easily. For example if you want to split the epub before any <h2> tag, you only have to S&R with:

Search: <h2
Replace with: <hr class="sigil_split_marker" /><h2

And that's all. If you want to add split markers with more precition (for example with <h> tags with some class or something similar), you'll need to use regex in S&R.

Regards
Rubén
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Old 10-24-2015, 07:58 AM   #3
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Hmm, this does not update the internal links.

If something pointed to "../01.xhtml#a" I want it to point to the file where that "a" ID now finds itself.

Is this even possible?

TY anyway
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Old 10-24-2015, 08:06 AM   #4
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When splitting/merging, the internal links are adjusted automatically. There'd be little point in making the split/merge so easy to do if you then had to manually fix all the links.

Just try it with a sample epub and see.
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Old 10-24-2015, 08:09 AM   #5
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EDIT: It works. No idea what was wrong before. Ty all guys!

Hmm then something is missing in what I do, because the links are not updated. Could it be BC the IDs are with numbers only, something that the validator tells me is no good?
Last edited by 1v4n0; 10-24-2015 at 08:50 AM.
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Old 10-24-2015, 10:08 AM   #6
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Quote:
Originally Posted by 1v4n0 View Post
Hmm, this does not update the internal links.

If something pointed to "../01.xhtml#a" I want it to point to the file where that "a" ID now finds itself.

Is this even possible?

TY anyway
The link isnt correct even before the split. In Sigil, each (x)html file is underneath /Text so the link must be

../Text/01.xhtml#a
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Old 10-24-2015, 12:23 PM   #7
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Quote:
Originally Posted by 1v4n0 View Post
EDIT: It works. No idea what was wrong before. Ty all guys!

Hmm then something is missing in what I do, because the links are not updated. Could it be BC the IDs are with numbers only, something that the validator tells me is no good?
Yup, that could be a reason.
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Old 10-24-2015, 12:57 PM   #8
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Always split in codeview so you can see that you are splitting between Block level tags. Sigil will replicate the needed surrounding tags in the new file.

Sigil will also 'lose' the filename portion of a link if the target file is deleted beforehand.

../Text/foo.xhtml#mid
becomes
../Text/#mid
which will fail to validate
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