I have an hash of keys and values as below. Each key has multiple values, but each value could reference a key. For a given input key, I need to print the values, and if the value is also a key, then print the value of that key in brackets as below: 

Usb1 Usb2,Usb3
Usb2 val1,val2,Usb4
Usb3 val3
Usb4 val4

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Input : Usb1 

print Usb2[val1,val2,Usb4[val4]],Usb3[val3]

Input : Usb2

print val1,val2,Usb4[val4]

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The logic I tried is to first check if the input key exists in the hash then load the values of that key into an array Now, iterate through the array, print $_ , then compare if the value matches any key in the hash, if matches, print the value. But now, I dont get how long and how I can keep doing this, because the set of keys could reference another key and so on...


Any suggestions or examples could help. Thankyou

In reply to Parsing through Hashes by sidsinha

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