RE: The DSSSList Digest V3 #125

["Weininger, Nicholas (MN65)" <weininger_nicholas@xxxxxxxxxxxxxxxxx>]

Date: Thu, 29 Jul 1999 09:41:33 +0300
From: "joseph, Gershon" <Gershon_joseph@xxxxxxxxxxxxx>
Subject: RE: Changing the value of a variable

My problem occurs with table and figure numbering. These can occur inside
<chap>, <sect1>, <sect2>, or <sect3> elements. If I use either child-number
or ancestor-child-number, I get the number of elements inside the current
parent element. This means that the first table in every <sect1>, <sect2>,
and <sect3> is numbered 1-1, instead of running continuously until the next
<chap> (1-1, 1-2, 1-3, etc.). I need the number of elements inside the
<chap> element.

Perhaps I could use the element-number-list procedure, though it is not
clear to me how to use it. How do people generally generate numbering when
the numbering has to be reset when a particular element is encountered?

Gershon


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------------------------------

The Modular DocBook Stylesheets' (component-number) routine solves a
somewhat similar problem; perhaps the 
scheme (pun intended :-)) used there could apply to your situation.
Basically, in order to find
the correct number for an element, it walks up the ancestor tree until it
finds the appropriate "restart element"
(in your case, <chapter>), then expands the children of that restart
element, ignoring elements on an "ignore list."
Then the element you want to number should be in that child list.

So if you put sect1, sect2, sect3, etc. on the "ignore list", got an
expand-children list of your chapter element, and
filtered out the table elements with select-elements, that should give you
proper table numbering. I've used this method
to make some of my extensions to DocBook get numbered the way I want them to
be.

The above explanation is perhaps a bit confusing; the actual code is
clearer. Get the stylesheets and look for
(component-number) in /docbook/common/dbcommon.dsl.

Hope this helps,
Nick Weininger
weininger_nicholas@xxxxxxxxxxxxxxxxx


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