Re: [xsl] Tunnelled params and variables

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

At 2007-07-28 00:24 +0900, Justin Johansson wrote:
> What are the use cases for having tunnel="yes" on xsl:params and variables?

I choose to use tunnel="yes" on xsl:param and xsl:with-param when 
between the current node being matched and a deeply-nested match that 
needs information from the current node (1) I am unsure which 
template rules are going to fire, or (2) I have a ton of template 
rules that will fire, or (3) the built-in template rules are going to fire.

Compared to XSLT 1 where I had to track down all of the template 
rules and supplant all of the built-in template rules, this is a real 
convenience for me not to have to identify which template rules need 
to have the param added (with the associated with-param on every 
embedded apply-templates), nor have to rewrite the built-in template rules.

It has been a time-saver.

I hope this helps.

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

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