Hi all,

I have a hash in the following format (the notation is my own brand ;) but what it shows is a scalar on the left mapping to an array of values (the right hand side is of course a ref to the actual array):

1 -> @{a, b, c}
2 -> @{d, e, f}
3 -> @{g, h, i}

[download]

My first task i needed to do to this hash was print out each key, with each corresponding value on a new line, thus:

1, a
1, b
...
3, h
3, i

[download]

This was straightforward. My new requirement is to print in the form:

a, 1
b, 1
c, 1
...
g, 3
h, 3
i, 3

[download]

As an extra caveat I also want to make sure the output is ordered by the output, i.e. as it is in the above, a before b etc.

Has anyone got any nice perl ways of doing this or am I going to have to go for brute force set of nested foreach statements? I certainly have no idea as to making the output ordered!

By the way I still need to maintain the hash in its original form as the first output method (the one I have working) is still required.

Thanks, Arun

In reply to Reorganising a Hash for Output by arunhorne

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