active.clojure.match — de.active-group/active-clojure 0.37.0

Syntactic sugar for map matching around core.match.

any-but clj

(any-but & exclusions)

bind-match clj

(bind-match clause binding)

Takes a clause and replaces it's binding with binding.

binding-lens clj

Returns a function that when applied to a clause, returns a lens focusing on the binding of the clause.

clause->dependency clj

(clause->dependency pattern clause)

clause->lhs clj

(clause->lhs message clause)

clause->rhs clj

(clause->rhs message bindings clause)

clause-lens clj

(clause-lens key-matches-lens
             path-matches-lens
             key-exists-lens
             path-exists-lens)

clause? clj

composition->dependencies clj

(composition->dependencies composition)

conjunction clj

(conjunction composition & compositions)

Conjunction clj

conjunction-comp-1 clj

(conjunction-comp-1 rec__2619__auto__)

(conjunction-comp-1 data__2620__auto__ v__2621__auto__)

Lens for the comp-1 field from a Conjunction record. See active.clojure.match/make-conjunction.

conjunction-comp-2 clj

(conjunction-comp-2 rec__2619__auto__)

(conjunction-comp-2 data__2620__auto__ v__2621__auto__)

Lens for the comp-2 field from a Conjunction record. See active.clojure.match/make-conjunction.

conjunction? clj

(conjunction? thing)

Is object a Conjunction record? See active.clojure.match/make-conjunction.

constant-matcher-value clj

(constant-matcher-value rec__2619__auto__)

(constant-matcher-value data__2620__auto__ v__2621__auto__)

Lens for the value field from a ConstantMatcher record. See active.clojure.match/make-constant-matcher.

constant-matcher? clj

(constant-matcher? thing)

Is object a ConstantMatcher record? See active.clojure.match/make-constant-matcher.

ConstantMatcher clj

convert-path-element clj

(convert-path-element path-element)

deep-merge clj

(deep-merge v & vs)

defpattern clj macro

(defpattern binding pattern)

dependencies->graph clj

(dependencies->graph dependencies)

Dependency clj

dependency-for-pattern clj

(dependency-for-pattern rec__2619__auto__)

(dependency-for-pattern data__2620__auto__ v__2621__auto__)

Lens for the for-pattern field (The Pattern that depends on this.) from a Dependency record. See active.clojure.match/make-dependency.

dependency-matcher clj

(dependency-matcher rec__2619__auto__)

(dependency-matcher data__2620__auto__ v__2621__auto__)

Lens for the matcher field (The matcher that must be successful for the path.) from a Dependency record. See active.clojure.match/make-dependency.

dependency-path clj

(dependency-path rec__2619__auto__)

(dependency-path data__2620__auto__ v__2621__auto__)

Lens for the path field (The path that this Dependency has a restriction on.) from a Dependency record. See active.clojure.match/make-dependency.

dependency? clj

(dependency? thing)

Is object a Dependency record? See active.clojure.match/make-dependency.

disjuction clj

(disjuction composition & compositions)

Disjunction clj

disjunction-comp-1 clj

(disjunction-comp-1 rec__2619__auto__)

(disjunction-comp-1 data__2620__auto__ v__2621__auto__)

Lens for the comp-1 field from a Disjunction record. See active.clojure.match/make-disjunction.

disjunction-comp-2 clj

(disjunction-comp-2 rec__2619__auto__)

(disjunction-comp-2 data__2620__auto__ v__2621__auto__)

Lens for the comp-2 field from a Disjunction record. See active.clojure.match/make-disjunction.

disjunction? clj

(disjunction? thing)

Is object a Disjunction record? See active.clojure.match/make-disjunction.

existence-matcher? clj

(existence-matcher? thing)

Is object a ExistenceMatcher record? See active.clojure.match/make-existence-matcher.

ExistenceMatcher clj

flat? clj

fold-path clj

(fold-path path match)

key->sym clj

key-exists-clause clj

(key-exists-clause key bind)

Returns a clause that asserts the existence of a non-nil value at key. Binds the value associated with key to (key->sym key).

key-exists-clause->rhs-match clj

(key-exists-clause->rhs-match message clause)

key-exists-clause-binding clj

(key-exists-clause-binding rec__2619__auto__)

(key-exists-clause-binding data__2620__auto__ v__2621__auto__)

Lens for the binding field from a KeyExistsClause record. See active.clojure.match/make-key-exists-clause.

key-exists-clause-key clj

(key-exists-clause-key rec__2619__auto__)

(key-exists-clause-key data__2620__auto__ v__2621__auto__)

Lens for the key field from a KeyExistsClause record. See active.clojure.match/make-key-exists-clause.

key-exists-clause-matcher clj

(key-exists-clause-matcher rec__2619__auto__)

(key-exists-clause-matcher data__2620__auto__ v__2621__auto__)

Lens for the matcher field from a KeyExistsClause record. See active.clojure.match/make-key-exists-clause.

key-exists-clause? clj

(key-exists-clause? thing)

Is object a KeyExistsClause record? See active.clojure.match/make-key-exists-clause.

key-matches-clause clj

(key-matches-clause key matcher bind)

Returns a clause that matches a key with a certain matcher, binding the match to a symbol based on key.

key-matches-clause->rhs-match clj

(key-matches-clause->rhs-match message clause)

key-matches-clause-binding clj

(key-matches-clause-binding rec__2619__auto__)

(key-matches-clause-binding data__2620__auto__ v__2621__auto__)

Lens for the binding field from a KeyMatchesClause record. See active.clojure.match/make-key-matches-clause.

key-matches-clause-key clj

(key-matches-clause-key rec__2619__auto__)

(key-matches-clause-key data__2620__auto__ v__2621__auto__)

Lens for the key field from a KeyMatchesClause record. See active.clojure.match/make-key-matches-clause.

key-matches-clause-matcher clj

(key-matches-clause-matcher rec__2619__auto__)

(key-matches-clause-matcher data__2620__auto__ v__2621__auto__)

Lens for the matcher field from a KeyMatchesClause record. See active.clojure.match/make-key-matches-clause.

key-matches-clause? clj

(key-matches-clause? thing)

Is object a KeyMatchesClause record? See active.clojure.match/make-key-matches-clause.

KeyExistsClause clj

KeyMatchesClause clj

make-binding clj

(make-binding k)

Returns k as a string if k is a symbol, otherwise returns k.

make-conjunction clj

(make-conjunction comp-1 comp-2)

Construct a Conjunction record.

comp-1: access via active.clojure.match/conjunction-comp-1 comp-2: access via active.clojure.match/conjunction-comp-2

make-constant-matcher clj

(make-constant-matcher value)

Construct a ConstantMatcher (A matcher that matches on exactly one value.) record.

value: access via active.clojure.match/constant-matcher-value

make-dependency clj

(make-dependency path matcher for-pattern)

Construct a Dependency record.

path (The path that this Dependency has a restriction on.): access via active.clojure.match/dependency-path matcher (The matcher that must be successful for the path.): access via active.clojure.match/dependency-matcher for-pattern (The Pattern that depends on this.): access via active.clojure.match/dependency-for-pattern

make-disjunction clj

(make-disjunction comp-1 comp-2)

Construct a Disjunction record.

comp-1: access via active.clojure.match/disjunction-comp-1 comp-2: access via active.clojure.match/disjunction-comp-2

make-existence-matcher clj

(make-existence-matcher)

Construct a ExistenceMatcher (A matcher that matches on the existence of a value. The value must be anything but nil.) record.

make-key clj

(make-key k)

Returns k as a string if k is a symbol, otherwise returns k.

make-key-exists-clause clj

(make-key-exists-clause key matcher binding)

Construct a KeyExistsClause record.

key: access via active.clojure.match/key-exists-clause-key matcher: access via active.clojure.match/key-exists-clause-matcher binding: access via active.clojure.match/key-exists-clause-binding

make-key-matches-clause clj

(make-key-matches-clause key matcher binding)

Construct a KeyMatchesClause (A clause that matches the value of key of a map using matcher. When evaluated, binds it's result to binding.) record.

key: access via active.clojure.match/key-matches-clause-key matcher: access via active.clojure.match/key-matches-clause-matcher binding: access via active.clojure.match/key-matches-clause-binding

make-optional-clause clj

(make-optional-clause clause)

Construct a OptionalClause (Represents an optional clause. Contains the original clause.) record.

clause: access via active.clojure.match/optional-clause-clause

make-options-matcher clj

(make-options-matcher options)

Construct a OptionsMatcher (A matcher that matches on one of several options.) record.

options: access via active.clojure.match/options-matcher-options

make-path-exists-clause clj

(make-path-exists-clause path matcher binding)

Construct a PathExistsClause (A clause that asserts the existence of a non-nil value in a map at the path. When evaluated, binds it's result to binding.) record.

path: access via active.clojure.match/path-exists-clause-path matcher: access via active.clojure.match/path-exists-clause-matcher binding: access via active.clojure.match/path-exists-clause-binding

make-path-matches-clause clj

(make-path-matches-clause path matcher binding)

Construct a PathMatchesClause (A clause that matches the value of a map at the path using a matcher. When evaluated, binds it's result to binding.) record.

path: access via active.clojure.match/path-matches-clause-path matcher: access via active.clojure.match/path-matches-clause-matcher binding: access via active.clojure.match/path-matches-clause-binding

make-pattern clj

(make-pattern name clauses)

Construct a Pattern record.

name: access via active.clojure.match/pattern-name clauses: access via active.clojure.match/pattern-clauses

make-predicate-matcher clj

(make-predicate-matcher pred)

Construct a PredicateMatcher (A matcher that matches by applying a function (a -> Bool) to a value.) record.

pred: access via active.clojure.match/predicate-matcher-predicate

make-regex-matcher clj

(make-regex-matcher regex)

Construct a RegexMatcher (A matcher that matches against a regex.) record.

regex: access via active.clojure.match/regex-matcher-regex

map-matcher clj macro

(map-matcher & args)

Construct a map matcher. Syntactic sugar for core.match.

`map-matcher´ accepts two kinds of inputs:

1. A sequence of alternating patterns and consequents (see below).
2. A sequence of alternating Pattern objects and consequents.

The syntax is (map-matcher <pattern> <consequent> ... :else <alternative>) where <pattern> is a vector of clauses [<clause>+] where clause is one of the following:

• (<key> <value> :as <name>) which requires the key <key> to be mapped to <value> in the map and binds <name> to <value>.

• (<key-and-name> <value>) which requires the key <key-and-name> to be mapped to <value> in the map and binds <key-and-name> to <value>.

• (<key> :as <name>) which requires <key> to be present in the map and binds <name> to its value.

• <key-and-name> which requires <key-and-name> to be present in the map and binds <key-and-name> to its value

The map matcher also supports optional keys:

• (? <key> <default> :as <name>) binds <name> to to the value of <key> in the map or to <default> if <key> is not in the map.

• (? <key-and-name> <default>) binds <key-and-name> to the value of <key-and-name> in the map or to <default> if <key-and-name> is not in the map.

• (? <key> :as <name>) binds <name> to to the value of <key> in the map or to nil if <key> is not in the map.

• (? <key-and-name>) binds <key-and-name> to the value of <key-and-name> in the map or to nil if <key-and-name> is not in the map.

Access to nested values is also possible. Use [<key>+] to access a nested value, where [<key>+] is a sequence of keys. When no :as <name> clause is given, the last <key> of the sequence of keys is used as a name to bind the value.

<key> and <key-and-name> can be either a symbol or a keyword. If <key-and-name> is a symbol, it is converted to a string when used as a key (and used as symbol for binding the value). If <key-and-name> is a keyword, it is converted to a name for binding the value (and usesd as keyword when used as a key).

<value> can be:

• any value, regular expressions are also possible (only in Clojure, though, core.match does not support regex matching in ClojureScript).

• a list of alternative values in the form of: (:or <value> <value>*).

• a custom compare function in the form of: (:compare-fn <compare-fn>) where <compare-fn> accepts the value that is mapped to <key> or <key-and-name>.

map-matcher returns a function that accepts a map and evaluates <consequent> with all the <name>s bound when the message matches the given <clause>s, otherwise it evaluates <alternative>. or throws IllegalArgumentException if <clause> matches and no <alternative> is given.

Example:

  (def example-map-matcher
    (map-matcher
      [(:x "x" :as x)
       (:y "y")
       (:z :as z)
       :w]
      (println x y z w)
      [(:a "a" :as a)
       (:b "b")
       (:c :as c)
       ([:d Z] 42 :as Z)
       ([:d Y] :as Y)
       ([:d X] 65)
       [:d W foo]]
      (println a b c Z Y X foo)
      :else false))

  (example-map-matcher {:a "a" :b "b" :c "c"
                        :d {"Z" 42 "Y" 23 "X" 65
                            "W" {"foo" "bar"}}})

prints

"a b c d 42 23 65 bar"

match clj macro

(match event & args)

match-const clj

(match-const value)

match-options clj

(match-options options)

match-predicate clj

(match-predicate p)

match-regex clj

(match-regex regex)

match-value->matcher clj

(match-value->matcher [kind match-value])

matcher clj macro

(matcher & args)

matcher->value clj

(matcher->value matcher)

Takes a matcher and returns the value/s it matches on. ::not-nil symbolizes the existence matcher.

matcher-default-value clj

(matcher-default-value matcher)

Returns the default value of a matcher, if any.

matcher-lens clj

Returns a function that when applied to a clause, returns a lens focusing on the matcher of the clause.

matcher? clj

named-pattern clj

(named-pattern pattern the-name)

optional clj

(optional clause)

Takes a clause and returns it as an optional clause. If it already was an optional clause, this is the identity function.

optional-clause-clause clj

(optional-clause-clause rec__2619__auto__)

(optional-clause-clause data__2620__auto__ v__2621__auto__)

Lens for the clause field from a OptionalClause record. See active.clojure.match/make-optional-clause.

optional-clause? clj

(optional-clause? thing)

Is object a OptionalClause record? See active.clojure.match/make-optional-clause.

optional? clj

OptionalClause clj

options-matcher-options clj

(options-matcher-options rec__2619__auto__)

(options-matcher-options data__2620__auto__ v__2621__auto__)

Lens for the options field from a OptionsMatcher record. See active.clojure.match/make-options-matcher.

options-matcher? clj

(options-matcher? thing)

Is object a OptionsMatcher record? See active.clojure.match/make-options-matcher.

OptionsMatcher clj

parse-clause clj macro

(parse-clause p)

parse-clauses clj macro

(parse-clauses cs)

parse-emit-match-syntax clj

(parse-emit-match-syntax message [pattern rhs])

parse-emit-syntax clj

(parse-emit-syntax message p rhs)

parse-pattern clj macro

(parse-pattern pattern)

Parse the argument to defpattern as a Pattern. Optionally accepts a name (String) that names the pattern. If none is provided, automatically assigns a name.

path-exists-clause clj

(path-exists-clause path bind)

Returns a clause that asserts the existence of a non-nil value at key. Binds the value associated with path to (key->sym (last path)).

path-exists-clause->rhs-match clj

(path-exists-clause->rhs-match message clause)

path-exists-clause-binding clj

(path-exists-clause-binding rec__2619__auto__)

(path-exists-clause-binding data__2620__auto__ v__2621__auto__)

Lens for the binding field from a PathExistsClause record. See active.clojure.match/make-path-exists-clause.

path-exists-clause-matcher clj

(path-exists-clause-matcher rec__2619__auto__)

(path-exists-clause-matcher data__2620__auto__ v__2621__auto__)

Lens for the matcher field from a PathExistsClause record. See active.clojure.match/make-path-exists-clause.

path-exists-clause-path clj

(path-exists-clause-path rec__2619__auto__)

(path-exists-clause-path data__2620__auto__ v__2621__auto__)

Lens for the path field from a PathExistsClause record. See active.clojure.match/make-path-exists-clause.

path-exists-clause? clj

(path-exists-clause? thing)

Is object a PathExistsClause record? See active.clojure.match/make-path-exists-clause.

path-lens clj

Returns a function that when applied to a clause, returns a lens focusing on the path of the clause.

path-matches-clause clj

(path-matches-clause path matcher bind)

path-matches-clause->rhs-match clj

(path-matches-clause->rhs-match message clause)

path-matches-clause-binding clj

(path-matches-clause-binding rec__2619__auto__)

(path-matches-clause-binding data__2620__auto__ v__2621__auto__)

Lens for the binding field from a PathMatchesClause record. See active.clojure.match/make-path-matches-clause.

path-matches-clause-matcher clj

(path-matches-clause-matcher rec__2619__auto__)

(path-matches-clause-matcher data__2620__auto__ v__2621__auto__)

Lens for the matcher field from a PathMatchesClause record. See active.clojure.match/make-path-matches-clause.

path-matches-clause-path clj

(path-matches-clause-path rec__2619__auto__)

(path-matches-clause-path data__2620__auto__ v__2621__auto__)

Lens for the path field from a PathMatchesClause record. See active.clojure.match/make-path-matches-clause.

path-matches-clause? clj

(path-matches-clause? thing)

Is object a PathMatchesClause record? See active.clojure.match/make-path-matches-clause.

path? clj

Is something a valid path?

PathExistsClause clj

PathMatchesClause clj

Pattern clj

pattern clj

(pattern & clauses)

Takes a name and some clauses and returns a Pattern.

pattern->dependencies clj

(pattern->dependencies pattern)

pattern->lhs clj

(pattern->lhs message pattern)

pattern->rhs clj

(pattern->rhs message pattern rhs)

pattern-clauses clj

(pattern-clauses rec__2619__auto__)

(pattern-clauses data__2620__auto__ v__2621__auto__)

Lens for the clauses field from a Pattern record. See active.clojure.match/make-pattern.

pattern-name clj

(pattern-name rec__2619__auto__)

(pattern-name data__2620__auto__ v__2621__auto__)

Lens for the name field from a Pattern record. See active.clojure.match/make-pattern.

pattern? clj

(pattern? thing)

Is object a Pattern record? See active.clojure.match/make-pattern.

predicate-matcher-predicate clj

(predicate-matcher-predicate rec__2619__auto__)

(predicate-matcher-predicate data__2620__auto__ v__2621__auto__)

Lens for the pred field from a PredicateMatcher record. See active.clojure.match/make-predicate-matcher.

predicate-matcher? clj

(predicate-matcher? thing)

Is object a PredicateMatcher record? See active.clojure.match/make-predicate-matcher.

PredicateMatcher clj

reduce-lhs clj

(reduce-lhs lhss)

regex-matcher-regex clj

(regex-matcher-regex rec__2619__auto__)

(regex-matcher-regex data__2620__auto__ v__2621__auto__)

Lens for the regex field from a RegexMatcher record. See active.clojure.match/make-regex-matcher.

regex-matcher? clj

(regex-matcher? thing)

Is object a RegexMatcher record? See active.clojure.match/make-regex-matcher.

regex? clj

(regex? thing)

Is a thing a regex.

RegexMatcher clj

the-existence-matcher clj

Singleton matcher. Match the existence of a vale.