Name: Teodor Zlatanov e-mail: [EMAIL PROTECTED] Requested user ID: TEODOR
Description: I've written a two-way hash module (proposed name: Tie::TwoWayHash) which will keep a two-way association list in internal hashes. For instance, say you have a list of machines, and each machine can belong to one or more classes. How do you find out which machines belong to a given class? This is basically a two-way mapping between two disjoint sets. Usually this is automated through two hashes, and the user keeps track of them manually. With Tie::TwoWayHash, the user only needs to add or delete elements in the first set (giving the list of associated elements in the second set will automatically vivify them; deleting all the mappings to an element in the second set will delete it as well). Add/delete of elements in the second set acts the same way, automatically vivifying or deleting elements in the first set. The advantage of doing this through a module: - less work for the user - optimized fetch, at the expense of slightly slower store/delete I am not aware of previous module work in this direction. Please contact me with questions or comments. Thanks Ted
