Nesting sub-collections between links.

[Dave Cramer]

See example 5, which is essentially Example 40 from the indexing spec.

This seems insanely complex. Do we want to support this? Note that nesting collections in JSON becomes even less readable than in XML, and one can spend many unhappy hours at jsonlint.com :)

[Tzviya]

Remember that example 40 in indexing is invalid (see w3c/epub-specs#561)

[Dave Cramer]

Example 5 fixed to reflect issue noted above.

This makes things worse. As evidence, I offer the last few lines of the JSON file:

          }]
        }
      ]
    }]
  }
}

[Hadrien Gardeur]

Looks invalid to me, you can't have an "index-group" (a subcollection) in "links", it goes against our model which is:

collection
    metadata
    links
    subcollection (same definition as collection)

[Dave Cramer]

Hopefully better now. Thanks!

[Hadrien Gardeur]

Can we close that issue and potentially even remove the example from our current document?