perl-Hash-Merge

Hash::Merge merges two arbitrarily deep hashes into a single hash. That is,
at any level, it will add non-conflicting key-value pairs from one hash to
the other, and follows a set of specific rules when there are key value
conflicts (as outlined below). The hash is followed recursively, so that
deeply nested hashes that are at the same level will be merged when the
parent hashes are merged. Please note that self-referencing hashes, or
recursive references, are not handled well by this method.
Values in hashes are considered to be either ARRAY references, HASH
references, or otherwise are treated as SCALARs. By default, the data
passed to the merge function will be cloned using the Clone module;
however, if necessary, this behavior can be changed to use as many of the
original values as possible. (See 'set_clone_behavior').

          

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License: Artistic-1.0 OR GPL-1.0-or-later
URL: https://metacpan.org/release/Hash-Merge