RE: [xsl] No-output identity template?

["G. Ken Holman" <gkholman@xxxxxxxxxxxxxxxxxxxx>]

At 2003-01-23 10:23 -0600, Roger Glover wrote:
> G. Ken Holman wrote:
> > <xsl:template match="menu/item" mode="sub-menu" priority="-1"/>
> >
> > This will not conflict with match="item[item]" because the inferred
> > priority of that rule is ".5".
>
> Is there a reason not just use 'match="item[not(item)]"' instead?

Actually, the most compact would just be:

 <xsl:template match="item" mode="sub-menu"/>

Because the inferred priority is 0, this doesn't conflict with the earlier 
match.

I didn't think to suggest this earlier because I didn't realize that *two* 
different modes were being used: sub-menu and sub-menu-item.

> This
> seems to me to express the desired behavior more precisely,

Well, perhaps the above is even more precise.  Again, I was hung up 
thinking there was only one mode, so I had to use parentage to distinguish 
the items.  When two modes are being used, then in the sub-menu mode you 
can have the .5 priority qualified template rule and the 0 priority 
template rule without template rule conflict.

Had there been only one mode, then the parentage was necessary.

And, had there been only one mode your suggestion would not have worked 
because it would have been triggered by the nested template rule.  Since 
there are two modes, your suggestion would work just fine, as would mine above.

> and it does not
> require the priority setting to work correctly in the general case.

I'm sorry that I cannot comment on this statement because I do not 
understand what you are positing.

................... Ken


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