Dynamic context resolution in template

[Victor Salaman <vs...@hotmail.com>]

Hi:

I was wondering if there is some way of achieving dynamic context parameter 
resolution.

For example, let's say I have

$name='John Smith'
$city='West Palm Beach'
$state='Florida'

and I have $selector

if $selector is 'name' would there be some kind of syntax (or something in 
the api that I can use) so it resolves dynamically to 'John Smith'?

/V

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Re: Dynamic context resolution in template

["Geir Magnusson Jr." <ge...@optonline.net>]

On 12/22/01 9:15 AM, "Victor Salaman" <vs...@hotmail.com> wrote:

> Hi:
> 
> I was wondering if there is some way of achieving dynamic context parameter
> resolution.
> 
> For example, let's say I have
> 
> $name='John Smith'
> $city='West Palm Beach'
> $state='Florida'
> 
> and I have $selector
> 
> if $selector is 'name' would there be some kind of syntax (or something in
> the api that I can use) so it resolves dynamically to 'John Smith'?
> 

No - this is another spin on the problem if iterative evaluation, I think.
You want to do something like
  

  ${$selector}

Right?  To get  $name - > 'John Smith'

We don't do that.

However, there are a few outs for you.  For example, put the context itself
into the context :

  context.put("context", context )

And then

  $context.get( $selector )

Should do the trick for you.

You can get fancier with your own eval tool, but I think the above might
work for you if I understand the problem correctly.

geir

-- 
Geir Magnusson Jr.     geirm@optonline.net
System and Software Consulting
"Whoever would overthrow the liberty of a nation must begin by subduing the
freeness of speech." - Benjamin Franklin



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