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Re: "Fast Forward" links don't seem to be correct

From: Peter Eisentraut <peter_e(at)gmx(dot)net>
To: pgsql-docs(at)postgresql(dot)org
Cc: Tom Lane <tgl(at)sss(dot)pgh(dot)pa(dot)us>
Subject: Re: "Fast Forward" links don't seem to be correct
Date: 2006-10-22 14:54:49
Message-ID: 200610221654.50518.peter_e@gmx.net (view raw or flat)
Thread:
Lists: pgsql-docs
Tom Lane wrote:
> If you go to a regular, non-chapter-heading page in the PG docs, such
> as
> http://developer.postgresql.org/pgdocs/postgres/extend-type-system.ht
>ml and try the "Fast Backward" link, it goes to that chapter's heading
> page, which seems reasonable.  But the "Fast Forward" link points to
> the same place.  Shouldn't it lead to the *next* chapter, instead?

It probably should.  The stylesheet code, however, doesn't seem to make
any attempts about it:

(define (next-major-component-chunk-element #!optional (elem (current-node)) (in-chain #f))
  ;; Return the next major component of the document that is not a descendant
  ;; of the starting element.  This is essentially 'next-sibling' but skips
  ;; over things that aren't chunks.
  (if (or (navigate-to? elem) in-chain)
      (if (member (gi elem) (major-component-element-list)) ; <--- It's a chapter or other major chunk.
          (if (node-list-empty? (node-list-first-element (follow elem)))
              (next-major-component-chunk-element (parent elem))
              (let ((nd (node-list-first-element (follow elem))))
                (if (navigate-to? nd)
                    nd
                    (next-major-component-chunk-element nd #t))))
          (ancestor-member elem (major-component-element-list))) ; <--- Else picks ancestor (should pick something after ancestor).
      (empty-node-list)))

I tried to change that but my first attempts seem to make the build take
forever.  I'll play around with it some more.

At least I think that's where it's happening ...

-- 
Peter Eisentraut
http://developer.postgresql.org/~petere/

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