Split an EPUB into more HTML files

1v4n0 · 10-24-2015, 07:05 AM

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

RbnJrg · 10-24-2015, 07:42 AM

Quote:

Originally Posted by 1v4n0

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: 870
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: 514
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

1v4n0 · 10-24-2015, 07:58 AM

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

DiapDealer · 10-24-2015, 08:06 AM

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.

1v4n0 · 10-24-2015, 08:09 AM

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?

rubeus · 10-24-2015, 10:08 AM

Quote:

Originally Posted by 1v4n0

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

Toxaris · 10-24-2015, 12:23 PM

Quote:

Originally Posted by 1v4n0

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.

theducks · 10-24-2015, 12:57 PM

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

10-24-2015, 07:05 AM	#1
1v4n0 Groupie Posts: 171 Karma: 40000 Join Date: Oct 2013 Device: kindle	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

10-24-2015, 08:09 AM	#5
1v4n0 Groupie Posts: 171 Karma: 40000 Join Date: Oct 2013 Device: kindle	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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10-24-2015, 07:58 AM	#3
1v4n0 Groupie Posts: 171 Karma: 40000 Join Date: Oct 2013 Device: kindle	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

10-24-2015, 08:06 AM	#4
DiapDealer Grand Sorcerer Posts: 27,551 Karma: 193191846 Join Date: Jan 2010 Device: Nexus 7, Kindle Fire HD	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.

10-24-2015, 12:57 PM	#8
theducks Well trained by Cats Posts: 29,805 Karma: 54830978 Join Date: Aug 2009 Location: The Central Coast of California Device: Kobo Libra2,Kobo Aura2v1, K4NT(Fixed: New Bat.), Galaxy Tab A	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