Recursively transforms all map keys from strings to keywords.

Performs a depth-first, post-order traversal of form.  Calls f on
each sub-form, uses f's return value in place of the original.
Recognizes all Clojure data structures. Consumes seqs as with doall.

Recursively transforms form by replacing keys in smap with their
values.  Like clojure/replace but works on any data structure.  Does
replacement at the leaves of the tree first.

Like postwalk, but does pre-order traversal.

Recursively transforms form by replacing keys in smap with their
values.  Like clojure/replace but works on any data structure.  Does
replacement at the root of the tree first.

Recursively transforms all map keys from keywords to strings.

Traverses form, an arbitrary data structure.  inner and outer are
functions.  Applies inner to each element of form, building up a
data structure of the same type, then applies outer to the result.
Recognizes all Clojure data structures. Consumes seqs as with doall.