On Sunday, Nov 23, 2003, at 14:11 US/Pacific, Kevin Old wrote: [..]
I've seen the word "callback" used in a few Changelogs for a few modules[..]
saying that a few callbacks were fixed in the module. I can't find any
documentation on what a callback is and am wondering if anyone can point
me to some docs, or explain what it is?
the simplest way to think of it would be in the perldoc File::Find - cf.
the idea is that one piece of code is built to solve a 'general problem' given a set of arguments, one of which is the reference to the piece of code that will be used to DO something, eg:
use File::Find;
find(\&wanted, '/foo', '/bar');
sub wanted { ... }the 'wanted' there is the 'callback'.
ciao drieux
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