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A module that adds operators and methods for merging lists in a clean way. See:
From that article:
There are three things here:
listcatthat works as
<a b c> listcat <x y z>and returns
<a b c x y z>but without flattening any further than one level.
⊕for listcat that evokes the Python (among a small number of other languages') convention of using
+for this purpose without actually muddying the type waters.
Listthat adds the
slingmethod that performs a
Listobject that it's called on and its arguments, returning the unified list.
This is free software.
Please see the LICENCE for the details.