Navigate to 'void' element after the sequence.
For transformations – if result is not `NONE`,
then append that value.

Navigate to every element of the collection. For maps navigates to
a vector of `[key value]`.

Same as ALL, except maintains metadata on the structure.

Navigates to atom value.

Navigate to 'void' element before the sequence.
For transformations – if result is not `NONE`,
then prepend that value.

Navigates to the empty space between the index and the prior index. For select
navigates to NONE, and transforms to non-NONE insert at that position.

Navigate to the empty subsequence before the first element of the collection.

Like `walker` but maintains metadata of any forms traversed.

Adds the result of running select with the given path on the
current value to the collected vals.

Adds the result of running select-one with the given path on the
current value to the collected vals.

Creates a filter function navigator that takes in all the collected values
as input. For arguments, can use `(collected? [a b] ...)` syntax to look
at each collected value as individual arguments, or `(collected? v ...)` syntax
to capture all the collected values as a single vector.

Returns a compiled version of the given path for use with
compiled-{select/transform/setval/etc.} functions.

During transforms, after each step of navigation in subpath check if the
value is empty. If so, remove that value by setting it to NONE.

Version of `multi-transform` that takes in a path precompiled with `comp-paths`

Version of replace-in that takes in a path precompiled with comp-paths

Version of select that takes in a path precompiled with comp-paths

Version of select-any that takes in a path precompiled with comp-paths

Version of select-first that takes in a path precompiled with comp-paths

Version of select-one that takes in a path precompiled with comp-paths

Version of select-one! that takes in a path precompiled with comp-paths

Version of selected-any? that takes in a path precompiled with comp-paths

Version of setval that takes in a path precompiled with comp-paths

Version of transform that takes in a path precompiled with comp-paths

Version of traverse that takes in a path precompiled with comp-paths

Version of traverse-all that takes in a path precompiled with comp-paths

Version of vtransform that takes in a path precompiled with comp-paths

Takes in alternating cond-path path cond-path path...
Tests the structure if selecting with cond-path returns anything.
If so, it uses the following path for this portion of the navigation.
Otherwise, it tries the next cond-path. If nothing matches, then the structure
is not selected.

Navigates to the provided path and then to the current element. This can be used
to implement post-order traversal.

Navigates to every continuous subsequence of elements matching `pred`

Defines a function that can choose what navigator to use at runtime based on
the dynamic context. The arguments will either be static values or
objects satisfying `dynamic-param?`. Use `late-bound-nav` to produce a runtime
navigator that uses the values of the dynamic params. See `selected?` for
an illustrative example of dynamic navs.

Defines a navigator that chooses the path to take based on the type
of the value at the current point. May be specified with parameters to
specify that all extensions must require that number of parameters.

Currently not available for ClojureScript.

Example of usage:
(defrecord SingleAccount [funds])
(defrecord FamilyAccount [single-accounts])

(defprotocolpath FundsPath)
(extend-protocolpath FundsPath
  SingleAccount :funds
  FamilyAccount [ALL FundsPath]
  )

Drops all collected values for subsequent navigation.

Turns a navigator that takes one argument into a navigator that takes
many arguments and uses the same navigator with each argument. There
is no performance cost to using this. See implementation of `keypath`

Navigate to the empty subsequence after the last element of the collection.

Used in conjunction with `defprotocolpath`. See [[defprotocolpath]].

Navigates to a view of the current sequence that only contains elements that
match the given path. An element matches the selector path if calling select
on that element with the path yields anything other than an empty sequence.

For transformation: `NONE` entries in the result sequence cause corresponding entries in
input to be removed. A result sequence smaller than the input sequence is equivalent to
padding the result sequence with `NONE` at the end until the same size as the input.

Navigate to the first element of the collection. If the collection is
empty navigation is stopped at this point.

Like cond-path, but with if semantics.

Navigates to the index of the sequence if within 0 and size. Transforms move element
at that index to the new index, shifting other elements in the sequence.

`indexed-vals` with a starting index of 0.

Navigate to [index elem] pairs for each element in a sequence. The sequence will be indexed
starting from `start`. Changing index in transform has same effect as `index-nav`. Indices seen
during transform take into account any shifting from prior sequence elements changing indices.

Navigate to the specified keys one after another. If navigate to NONE,
that element is removed from the map or vector.

Navigate to the last element of the collection. If the collection is
empty navigation is stopped at this point.

Navigates to the given key in the map (not to the value). Navigates only if the
key currently exists in the map. Can transform to NONE to remove the key/value
pair from the map.

Navigate to each key of the map. This is more efficient than
navigating via [ALL FIRST]

Navigate to each value of the map. This is more efficient than
navigating via [ALL LAST]

Navigates to the metadata of the structure, or nil if
the structure has no metadata or may not contain metadata.

A path that branches on multiple paths. For updates,
applies updates to the paths in order.

Just like `transform` but expects transform functions to be specified
inline in the path using `terminal` or `vterminal`. Error is thrown if navigation finishes
at a non-terminal navigator. `terminal-val` is a wrapper around `terminal` and is
the `multi-transform` equivalent of `setval`.
This macro will do inline caching of the path.

Just like `transform` but expects transform functions to be specified
inline in the path using `terminal` or `vterminal`. Error is thrown if navigation finishes
at a non-terminal navigator. `terminal-val` is a wrapper around `terminal` and is
the `multi-transform` equivalent of `setval`.

Navigate to the specified keys one after another, only if they exist
in the data structure. If navigate to NONE, that element is removed
from the map or vector.

Navigates to the name portion of the keyword or symbol

Navigates to the namespace portion of the keyword or symbol

Navigates to '() if the value is nil. Otherwise it stays
navigated at the current value.

Navigates to #{} if the value is nil. Otherwise it stays
navigated at the current value.

Navigates to the provided val if the structure is nil. Otherwise it stays
navigated at the structure.

Navigates to [] if the value is nil. Otherwise it stays
navigated at the current value.

Global value used to indicate no elements selected during
[[select-any]].

Navigate to 'void' elem in the set.
For transformations - if result is not `NONE`,
then add that value to the set.

Navigate to the specified indices one after another. If navigate to
NONE, that element is removed from the sequence.

Navigate to the result of running `parse-fn` on the value. For
transforms, the transformed value then has `unparse-fn` run on
it to get the final value at this point.

Same as calling comp-paths, except it caches the composition of the static parts
of the path for later re-use (when possible). For almost all idiomatic uses
of Specter provides huge speedup. This macro is automatically used by the
select/transform/setval/replace-in/etc. macros.

Keeps the element only if it matches the supplied predicate. Functions in paths
implicitly convert to this navigator.

Adds an external value to the collected vals. Useful when additional arguments
are required to the transform function that would otherwise require partial
application or a wrapper function.

e.g., incrementing val at path [:a :b] by 3:
(transform [:a :b (putval 3)] + some-map)

Similar to transform, except returns a pair of [transformed-structure sequence-of-user-ret].
The transform-fn in this case is expected to return [ret user-ret]. ret is
what's used to transform the data structure, while user-ret will be added to the user-ret sequence
in the final return. replace-in is useful for situations where you need to know the specific values
of what was transformed in the data structure.
This macro will do inline caching of the path.

Similar to transform, except returns a pair of [transformed-structure sequence-of-user-ret].
The transform-fn in this case is expected to return [ret user-ret]. ret is
what's used to transform the data structure, while user-ret will be added to the user-ret sequence
in the final return. replace-in is useful for situations where you need to know the specific values
of what was transformed in the data structure.

Navigates to and returns a sequence of all the elements specified by the path.
This macro will do inline caching of the path.

Navigates to and returns a sequence of all the elements specified by the path.

Returns any element found or [[NONE]] if nothing selected. This is the most
efficient of the various selection operations.
This macro will do inline caching of the path.

Returns any element found or [[NONE]] if nothing selected. This is the most
efficient of the various selection operations.

Returns first element found.
This macro will do inline caching of the path.

Returns first element found.

Like select, but returns either one element or nil. Throws exception if multiple elements found.
This macro will do inline caching of the path.

Returns exactly one element, throws exception if zero or multiple elements found.
This macro will do inline caching of the path.

Returns exactly one element, throws exception if zero or multiple elements found

Like select, but returns either one element or nil. Throws exception if multiple elements found

Returns true if any element was selected, false otherwise.
This macro will do inline caching of the path.

Returns true if any element was selected, false otherwise.

Filters the current value based on whether a path finds anything.
e.g. (selected? :vals ALL even?) keeps the current element only if an
even number exists for the :vals key.

Navigates to the given element in the set only if it exists in the set.
Can transform to NONE to remove the element from the set.

Navigates to each value specified by the path and replaces it by `aval`.
This macro will do inline caching of the path.

Navigates to each value specified by the path and replaces it by val

Navigates to the subsequence bound by the indexes start (inclusive)
and end (exclusive)

Uses start-index-fn and end-index-fn to determine the bounds of the subsequence
to select when navigating. `start-index-fn` takes in the structure as input. `end-index-fn`
can be one of two forms. If a regular function (e.g. defined with `fn`), it takes in only the structure as input. If a function defined using special `end-fn` macro, it takes in the structure and the result of `start-index-fn`.

Stays navigated at the current point. Essentially a no-op navigator.

Navigates to the current element and then navigates via the provided path.
This can be used to implement pre-order traversal.

Stops navigation at this point. For selection returns nothing and for
transformation returns the structure unchanged

Navigates to the specified submap (using select-keys).
In a transform, that submap in the original map is changed to the new
value of the submap.

Navigates to a sequence that contains the results of (select ...),
but is a view to the original structure that can be transformed.

Requires that the input navigators will walk the structure's
children in the same order when executed on "select" and then
"transform".

If transformed sequence is smaller than input sequence, missing entries
will be filled in with NONE, triggering removal if supported by that navigator.

Value collection (e.g. collect, collect-one) may not be used in the subpath.

Navigates to the specified subset (by taking an intersection).
In a transform, that subset in the original set is changed to the
new value of the subset.

Defines an endpoint in the navigation the transform function run. The transform
function works just like it does in `transform`, with collected values
given as the first arguments

Like `terminal` but specifies a val to set at the location regardless of
the collected values or the value at the location.

Navigates to each value specified by the path and replaces it by the result of running
the transform-fn on it.
This macro will do inline caching of the path.

Navigates to each value specified by the path and replaces it by the result of running
the transform-fn on it

Navigates to a view of the current value by transforming it with the
specified path and update-fn.

Return a reducible object that traverses over `structure` to every element
specified by the path.
This macro will do inline caching of the path.

Return a reducible object that traverses over `structure` to every element
specified by the path

Returns a transducer that traverses over each element with the given path.

Returns a transducer that traverses over each element with the given path.

Navigates to a view of the current value by transforming with a reduction over
the specified traversal.

Navigates to result of running `afn` on the currently navigated value.

Defines an endpoint in the navigation the transform function run.The transform
function works differently than it does in `transform`. Rather than receive
collected vals spliced in as the first arguments to the function, this function
always takes two arguemnts. The first is all collected vals in a vector, and
the second is the navigated value.

Navigates to each value specified by the path and replaces it by the result of running
the transform-fn on two arguments: the collected values as a vector, and the navigated value.

Navigate the data structure until reaching
a value for which `afn` returns truthy. Has
same semantics as clojure.walk.

Continues navigating on the given path with the collected vals reset to []. Once
navigation leaves the scope of with-fresh-collected, the collected vals revert
to what they were before.