API forclojure.walk -Clojurev1.13.0 (in development)

Overview

This file defines a generic tree walker for Clojure datastructures.  It takes any data structure (list, vector, map, set,seq), calls a function on every element, and uses the return valueof the function in place of the original.  This makes it fairlyeasy to write recursive search-and-replace functions, as shown inthe examples.Note: "walk" supports all Clojure data structures EXCEPT mapscreated with sorted-map-by.  There is no (obvious) way to retrievethe sorting function.

Usage: (keywordize-keys m)

Recursively transforms all map keys from strings to keywords.

Usage: (macroexpand-all form)

Recursively performs all possible macroexpansions in form.

Usage: (postwalk f form)

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

Usage: (postwalk-demo form)

Demonstrates the behavior of postwalk by printing each form as it iswalked.  Returns form.

Usage: (postwalk-replace smap form)

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

Usage: (prewalk f form)

Like postwalk, but does pre-order traversal.

Usage: (prewalk-demo form)

Demonstrates the behavior of prewalk by printing each form as it iswalked.  Returns form.

Usage: (prewalk-replace smap form)

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

Usage: (stringify-keys m)

Recursively transforms all map keys from keywords to strings.

Usage: (walk inner outer form)

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