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Old 10-19-2010, 11:24 AM   #1
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Links to URLs work, internal links don't?

I have a ton of hyperlinks in a single doc that all refer to different locations within the doc. Upon uploading to iBooks (via my own desktop, iTunes) I see that these don't work, though they look as if they should. Epub validator brings back the dreaded Error message referencing the anchors, "fragment identifier is not defined." Hyperlinks connecting to URLs work just fine. What gives and how can I fix it?
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Old 10-19-2010, 11:51 AM   #2
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A whole load of things could have happened, impossible to be sure as you don't show us any code. My guess is your epub has been split into separate files and the links fail to specify the relevant file as well as the fragment id.
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Old 10-19-2010, 12:25 PM   #3
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Be back with the code in a couple of hours. Really appreciate your help.
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Old 10-19-2010, 04:19 PM   #4
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OK, here's the error message, followed by the code in the xhtml file it refers to:
'abalone-chowder-anchor': fragment identifier is not defined in 'OEBPS/Cast Iron Cuisine ePub-48.xhtml'

They make an excellent<span class="link-style"><a href="#abalone-chowder-anchor"> Abalone Chowder</a></span>.)</p>
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Old 10-19-2010, 04:31 PM   #5
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Another example:
error message: 'dried-wild-mushrooms-anchor': fragment identifier is not defined in 'OEBPS/Cast Iron Cuisine ePub-48.xhtml'
code in 48.xhtml: <p class="ingredients" xml:lang="en-us">1 cup dried chanterelle mushrooms (see <span class="link-style"><a href="#dried-wild-mushrooms-anchor">Resources</a></span>)</p>
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Old 10-19-2010, 09:47 PM   #6
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href="#abalone-chowder-anchor"
href="#dried-wild-mushrooms-anchor"

These aren't specifying a file before the fragment id. From the spurious lang attribute I'm guessing you've exported this from InDesign and run into InDesign's link bug. Try exporting it without checking the box which splits it at first-level headings, though that means you'll need to use Sigil to do the ToC.
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Old 10-20-2010, 12:27 AM   #7
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Had a hunch it was an InDesign bug. More than a few I've encountered in CS5. And then there are the iBook bugs. Anybody got a good can of bug spray?
Thanks, charleski. Appreciate the input.
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Old 10-20-2010, 06:09 AM   #8
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Yeah Charleski is correct.
Is isn't an iBooks bug though, it a CS5 issue
All the links will work going there, but the return trip back all the links will be broken.
you can run a search and replace on the xhtml files to fix this though, it only take a few minutes.

For example I had one with hundreds and hundreds of footnote/endnotes. all the links from the text to the "notes" worked but the going from the "notes" file back to main text were broken...

you just need to insert the correct xhtml file before the #

href="filename.xhtml#dried-wild-mushrooms-anchor"
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Old 10-20-2010, 07:34 AM   #9
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Quote:
Originally Posted by charleski View Post
href="#abalone-chowder-anchor"
href="#dried-wild-mushrooms-anchor"

These aren't specifying a file before the fragment id. From the spurious lang attribute I'm guessing you've exported this from InDesign and run into InDesign's link bug. Try exporting it without checking the box which splits it at first-level headings, though that means you'll need to use Sigil to do the ToC.
Wait, you're telling me that InDesign will split files without updating links? That's absolutely insane. It makes any file-splitting feature completely and utterly useless.
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Old 10-20-2010, 10:10 AM   #10
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The shameful fact is that InDesign CS5 has received 3 patches since it was launched and this bug still isn't fixed - it's still there in 7.0.3. Adobe was informed of the bug back in May, so you get the feeling that they don't really care about InDesign's epub export facilities.

Then again, InDesign really is focussed on print production - there are far better tools for creating reflowable formats and publishers need to get out of the habit of correcting galley proofs.
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Old 10-20-2010, 11:37 AM   #11
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That's not the only CS5 bug, and I agree with you, charleski, it's absolutely shameful and irresponsible of Adobe not to have this software up to the task of correctly outputting epub files. Why should we have to chase our tails fixing code they should have gotten right in the first place? Epub book designers have better things to do.
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Old 10-20-2010, 11:42 AM   #12
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Adjust, thank you very much. I'm gonna go try that right now. Sure glad you guys are out there to ask.
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Old 10-20-2010, 01:17 PM   #13
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Adjust, I tried inserting the correct xhtml file as you expressed it and as my files gave it, but it's still not connecting. I must have missed something. What am I doing wrong here?

<a href="Cast Iron Cuisine ePub-48.xhtml#short-ribs-of-beef-anchor">Short Ribs of Beef</a>

<a href="Cast Iron Cuisine ePub-53.xhtml#mountain-bread-33-anchor">Mountain Bread</a>
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Old 10-20-2010, 01:34 PM   #14
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Having filenames with spaces is possible, but it's asking for trouble (as is having non-ASCII characters). It might be that the files use "%20" instead of a space or something like that.
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Old 10-20-2010, 01:43 PM   #15
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Jelby, I took the file designation literally, stroke by stroke, from the xhtml files as they are expressed in the OEBPS. Should I add hyphens between words in the file name?
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