Re: [docbook-apps] Profiling - xref needs two-pass

[Jirka Kosek <jirka@kosek.cz>]

Tim Casling wrote:

> Thanks Jirka.  I guess the reason I asked the question was because Bob's
> book implies that the use of <xref>s with profiling requires two-pass
> processing because of the fundamental way in which <xref> info is gathered
> (and says that to work one-pass you need to convert <xref>s to <olinks>).
> So, I guess I was trying to understand a bit more about why a limitation
> might exist and why I seemed to be getting around it.

You are probably referring to the following passage:

"If your document contains xref or link cross references, then you must 
use the two-pass method. That is because ID lookups are not standardized 
for internal node-sets. Switching all cross references to use olink 
would permit you to use single-pass processing."

In this context "not standardized" means that it works in some 
implementations, and it doesn't work in others. It seems that Xalan is 
member of former group of implementations, so you are in the luck.

> In my experience "the book" is not wrong very often.

Yep. I think that every user of DocBook XSL Stylesheets should buy at 
least one copy.

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