Can a toc.ncx point to an empty content tag?

twedigteam · 02-01-2013, 04:34 PM

To simplify:

Curious if anyone knows a way to get a TOC to have a top-level header point to an empty link? I've tried using <content src="" /> and <content src="#" /> but neither seem to not want to validate via EPUBCheck. I'm trying to make a nested list in the nav TOC, but there is no actual page for the header.

Example:
List Title [empty, no link]

List Item 1 [links to page]

List Item 2 [links to page]

List Item 3 [links to page]

Or is it just possible that it is a requirement of the toc.ncx to have the <content> pointing somewhere in the manifest?

THANKS!!!

Doitsu · 02-02-2013, 12:56 AM

IMHO, there's no point in having TOC entries that go nowhere. If you still want to keep them, why don't you use the id of the item immediately following the title?

twedigteam · 02-04-2013, 01:24 PM

Quote:

Originally Posted by Doitsu

IMHO, there's no point in having TOC entries that go nowhere. If you still want to keep them, why don't you use the id of the item immediately following the title?

I agree completely, which is why I've never run into this before. The TOC entries I have nested are not in logical order in the book, therefore there isn't any type of top-level heading/title for the list. On thinking about it more, I'll take your advice! Cheers and thanks.

Jellby · 02-05-2013, 04:43 AM

Maybe what you need is not a TOC entry, but a <navList> element. Unfortunately, I know of no reading system that supports <navList>

Toxaris · 02-05-2013, 06:28 AM

What if you just leave out the <content>?

twedigteam · 02-05-2013, 01:22 PM

Quote:

Originally Posted by Toxaris

What if you just leave out the <content>?

Hmm, good suggestion, thought that might work but it produces: 'element "navPoint" not allowed yet; missing required element "content"' as an error.

Oh well, I suppose these types of issues will probably be rendered moot on moving to EPUB3 and the nav document.

JSWolf · 02-05-2013, 08:08 PM

Quote:

Originally Posted by twedigteam

Hmm, good suggestion, thought that might work but it produces: 'element "navPoint" not allowed yet; missing required element "content"' as an error.

Oh well, I suppose these types of issues will probably be rendered moot on moving to EPUB3 and the nav document.

I've figured out the solution. For the entry that you want as a header for the top level, put in the same file to go to as the first entry in the next level. That way if anyone does use it to go to a ToC entry, it will go to the first one in level 2. So using your example...

Example:
List Title [links to same page as item 1]

List Item 1 [links to page]

List Item 2 [links to page]

List Item 3 [links to page]

twedigteam · 02-08-2013, 11:57 AM

Cheers, thanks for all the help on this one. That seems to be about as close as we can get to a solution. Interested to see what EPUB3 does for the <nav> document.

02-01-2013, 04:34 PM	#1
twedigteam Enthusiast Posts: 38 Karma: 10 Join Date: Nov 2010 Device: Sony eReader	Can a toc.ncx point to an empty content tag? To simplify: Curious if anyone knows a way to get a TOC to have a top-level header point to an empty link? I've tried using <content src="" /> and <content src="#" /> but neither seem to not want to validate via EPUBCheck. I'm trying to make a nested list in the nav TOC, but there is no actual page for the header. Example: List Title [empty, no link] List Item 1 [links to page] List Item 2 [links to page] List Item 3 [links to page] Or is it just possible that it is a requirement of the toc.ncx to have the <content> pointing somewhere in the manifest? THANKS!!!

Similar Threads
Thread	Thread Starter	Forum	Replies	Last Post
[Old Thread] calibre not creating content.opf or toc.ncx files during conversion	foxxywith2xs	Calibre	7	12-16-2012 07:49 PM
Kindler previewer not recognizing toc.ncx file, my html toc, or the start point...	petercrowell	Kindle Formats	2	05-01-2012 08:14 AM
Inline TOC from toc.ncx	elmago79	Kindle Formats	38	03-25-2011 12:56 PM
Use Regex to Code an Inline TOC, from an External TOC's .ncx File	mostlynovels	ePub	2	03-16-2011 12:15 PM
toc.ncx navpoint content=src empty?	KevinH	Sigil	6	11-23-2009 01:39 PM

02-02-2013, 12:56 AM	#2
Doitsu Grand Sorcerer Posts: 5,680 Karma: 23983815 Join Date: Dec 2010 Device: Kindle PW2	IMHO, there's no point in having TOC entries that go nowhere. If you still want to keep them, why don't you use the id of the item immediately following the title?

02-05-2013, 04:43 AM	#4
Jellby frumious Bandersnatch Posts: 7,543 Karma: 19001583 Join Date: Jan 2008 Location: Spaniard in Sweden Device: Cybook Orizon, Kobo Aura	Maybe what you need is not a TOC entry, but a <navList> element. Unfortunately, I know of no reading system that supports <navList>

02-05-2013, 06:28 AM	#5
Toxaris Wizard Posts: 4,520 Karma: 121692313 Join Date: Oct 2009 Location: Heemskerk, NL Device: PRS-T1, Kobo Touch, Kobo Aura	What if you just leave out the <content>?

02-08-2013, 11:57 AM	#8
twedigteam Enthusiast Posts: 38 Karma: 10 Join Date: Nov 2010 Device: Sony eReader	Cheers, thanks for all the help on this one. That seems to be about as close as we can get to a solution. Interested to see what EPUB3 does for the <nav> document.

Advert

Advert