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clojure.walk

This file defines a generic tree walker for Clojure data structures. It takes any data structure (list, vector, map, set, seq), calls a function on every element, and uses the return value of the function in place of the original. This makes it fairly easy to write recursive search-and-replace functions, as shown in the examples.

Note: "walk" supports all Clojure data structures EXCEPT maps created with sorted-map-by. There is no (obvious) way to retrieve the sorting function.

This file defines a generic tree walker for Clojure data
structures.  It takes any data structure (list, vector, map, set,
seq), calls a function on every element, and uses the return value
of the function in place of the original.  This makes it fairly
easy to write recursive search-and-replace functions, as shown in
the examples.

Note: "walk" supports all Clojure data structures EXCEPT maps
created with sorted-map-by.  There is no (obvious) way to retrieve
the sorting function.
raw docstring

keywordize-keysclj

(keywordize-keys m)

Recursively transforms all map keys from strings to keywords.

Recursively transforms all map keys from strings to keywords.
raw docstring

macroexpand-allclj

(macroexpand-all form)

Recursively performs all possible macroexpansions in form.

Recursively performs all possible macroexpansions in form.
raw docstring

postwalkclj

(postwalk f form)

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.

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.
raw docstring

postwalk-democlj

(postwalk-demo form)

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

Demonstrates the behavior of postwalk by printing each form as it is
walked.  Returns form.
raw docstring

postwalk-replaceclj

(postwalk-replace smap form)

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.

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.
raw docstring

prewalkclj

(prewalk f form)

Like postwalk, but does pre-order traversal.

Like postwalk, but does pre-order traversal.
raw docstring

prewalk-democlj

(prewalk-demo form)

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

Demonstrates the behavior of prewalk by printing each form as it is
walked.  Returns form.
raw docstring

prewalk-replaceclj

(prewalk-replace smap form)

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 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.
raw docstring

stringify-keysclj

(stringify-keys m)

Recursively transforms all map keys from keywords to strings.

Recursively transforms all map keys from keywords to strings.
raw docstring

walkclj

(walk inner outer form)

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.

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.
raw docstring

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