a reccuring problem for me seems to be a way to acquire a reference to an arbritrary point in a data structure comprised of nested hashes.

suppose for example you have: 


my %hash = ( 
   'company' => 
        { 'microsoft' => 
              {'applications' => 
                      {'windows' => 'operating system', 'office' => 'o
+ffice suite'}
                ,'people' => 
                      {'bill gates' => 'chair man'}
        }, 
         'sun microsystems' => 
               {'applications' =>
                      {'solaris' => 'operating system',
'star office' => 'office suite'}
        },
         'cross over' => 
               {}
    }
);

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or something similar, now with this hash you could create a subroutine for each level of the data structure, say "sub add_company" or "sub add_application" but ideally what id like to be able to do is to seek to any level of the data structure and just throw in a value

to do that I suppose what you'd need to do is create a sub which takes a set of names to "crawl" along in the hash data structure, this would then find a reference to the part of the data structure you want, and then perform a set of operations to the 'location' referred to, independent of where that is.

with this you could then say something like: 

add_to_hash(\%hash,'scalar','companies-microsoft-people-steve ballmer'
+,'bills bulldog')
#and you suddenly decide to have another category
add_to_hash(\%hash,'list','companies-cross over-supports','iTunes','ph
+oto shop')
#or something more elegant

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perhaps the above example could be perfomred using hash::merge, but still having an ability to find an arbitrary point in a data structure that can be then passed to a function would be immensely helpful, and if it seems like i'm trying to use hash structures like file hierachies, well yes, that's exactly right

the question i ask is, how to do it, I've tried using recursive hash references like 

 \$hashref = $%hashref{foobar}
and perl seems to really not like that, same with trying to construct the name of the hash from the root of the structure via non strict references

what am I missing?, any syntatic sugar, or a modules that I really should get to grips with

In reply to seeking in hash data structure by Maze

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