Re: list iteration, appending lists to lists?

[Steve Wray]

Mark Burgess wrote:
> This is just not the way variable expansion is defined. Iteration occurs
> only at specific locations.  

Like in the target of a 'files' action?

Unfortunately, this doesn't work:

list_of_files = ( foo:bar:baz" )

file:
  $(list_of_files):anotherfile
    <directives>

Doesn't work with quotes either as in:

file:
  "$(list_of_files):anotherfile"

Unless there is some way of being able to manipulate lists directly in
cfengine, I guess I'll have to come up with some list-manipulating
modules, if I want to do this sort of thing.

A related question: is cfengine a first or second order language? Is it
 computationally general?

The old computer scientist/logicians question: "Is it possible to
express arithmetic in cfengine?"


> On Wed, 2005-08-10 at 15:22 +1200, Steve Wray wrote:
> 
>>I had thought that I could use list iteration like this:
>>
>>somelist = ( foo:bar:baz" )
>>
>>anotherlist = ("somefile:$(somelist).conf" )
>>
>>and that this would expand to:
>>
>>"somefile:foo.conf:bar.conf:baz.conf"
>>when I used it in a 'files' action.
>>
>>But it doesn't. It expands into:
>>"somefile:foo:bar:baz.conf"
>>
>>which is less useful to me.
>>
>>I've been trying to figure out how to make it work as I want, but no
>>luck so far.
>>
>>Suggestions would be welcome!


-- 
"Politics is the art of looking for trouble, finding it, misdiagnosing
it, and then misapplying the wrong remedies." - Groucho Marx

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