Re: xml-dev Digest 24 Mar 2010 11:49:31 -0000 Issue 2307

[Nicholas Sushkin <nsushkin@openfinance.com>]

On Wednesday 24 March 2010 07:49:31 xml-dev-digest-help@lists.xml.org wrote:
> If yes, then anything which forces sequential processing is, by definition,
> not declarative. Do you agree?

I disagree. Declarative processing just defines what you need to compute 
without necessarily providing a sequential algorithm to do it. However, you 
may declare the process to be sequential.

For example, all of the examples below are declarative ways to apply a 
function to each element of the array, but only the last one specifying the 
order of execution.

example 1: map(function, array)
example 2: foreach _ in array yield function(_);
example 3: for i in 1..length(array) yield function(a[i])

-- 
Nicholas Sushkin, Senior Software Engineer
http://www.aggregationexchange.com

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