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authorEduardo Julian2015-01-03 11:24:14 -0400
committerEduardo Julian2015-01-03 11:24:14 -0400
commit661c70e4d786e7b2188564beddc586f1a50e4656 (patch)
treefe3aff74ffa526d455b7e22d7015573dc926f5f1 /src/lang/util.clj
parent212dd66966a873e3d7183b071f719ef58e4d88fe (diff)
The language officially has a name: Lux (stylized as "lux").
Diffstat (limited to 'src/lang/util.clj')
-rw-r--r--src/lang/util.clj168
1 files changed, 0 insertions, 168 deletions
diff --git a/src/lang/util.clj b/src/lang/util.clj
deleted file mode 100644
index 063dfa061..000000000
--- a/src/lang/util.clj
+++ /dev/null
@@ -1,168 +0,0 @@
-(ns lang.util
- (:require [clojure.string :as string]
- [clojure.core.match :refer [match]]))
-
-;; [Interface]
-;; [Interface/Utils]
-(defn fail* [message]
- [::failure message])
-
-(defn return* [state value]
- [::ok [state value]])
-
-;; [Interface/Monads]
-(defn fail [message]
- (fn [_]
- [::failure message]))
-
-(defn return [value]
- (fn [state]
- [::ok [state value]]))
-
-(defn bind [m-value step]
- #(let [inputs (m-value %)]
- ;; (prn 'bind/inputs inputs)
- (match inputs
- [::ok [?state ?datum]]
- ((step ?datum) ?state)
-
- [::failure _]
- inputs)))
-
-(defmacro exec [steps return]
- (assert (not= 0 (count steps)) "The steps can't be empty!")
- (assert (= 0 (rem (count steps) 2)) "The number of steps must be even!")
- (reduce (fn [inner [label computation]]
- (case label
- :let `(let ~computation ~inner)
- ;; :when (assert false "Can't use :when")
- :when `(if ~computation
- ~inner
- zero)
- ;; else
- `(bind ~computation (fn [~label] ~inner))))
- return
- (reverse (partition 2 steps))))
-
-;; [Interface/Combinators]
-(defn try-m [monad]
- (fn [state]
- (match (monad state)
- [::ok [?state ?datum]]
- (return* ?state ?datum)
-
- [::failure _]
- (return* state nil))))
-
-(defn repeat-m [monad]
- (fn [state]
- (match (monad state)
- [::ok [?state ?head]]
- (do ;; (prn 'repeat-m/?state ?state)
- (match ((repeat-m monad) ?state)
- [::ok [?state* ?tail]]
- (do ;; (prn 'repeat-m/?state* ?state*)
- (return* ?state* (cons ?head ?tail)))))
-
- [::failure ?message]
- (do ;; (println "Failed at last:" ?message)
- (return* state '())))))
-
-(defn try-all-m [monads]
- (fn [state]
- (if (empty? monads)
- (fail* "No alternative worked!")
- (let [output ((first monads) state)]
- (match output
- [::ok _]
- output
- :else
- (if-let [monads* (seq (rest monads))]
- ((try-all-m monads*) state)
- output)
- )))))
-
-(defn map-m [f inputs]
- (if (empty? inputs)
- (return '())
- (exec [output (f (first inputs))
- outputs (map-m f (rest inputs))]
- (return (conj outputs output)))))
-
-(defn reduce-m [f init inputs]
- (if (empty? inputs)
- (return init)
- (exec [init* (f init (first inputs))]
- (reduce-m f init* (rest inputs)))))
-
-(defn apply-m [monad call-state]
- (fn [state]
- ;; (prn 'apply-m monad call-state)
- (let [output (monad call-state)]
- ;; (prn 'apply-m/output output)
- (match output
- [::ok [?state ?datum]]
- [::ok [state ?datum]]
-
- [::failure _]
- output))))
-
-(defn assert! [test message]
- (if test
- (return nil)
- (fail message)))
-
-(defn comp-m [f-m g-m]
- (exec [temp g-m]
- (f-m temp)))
-
-(defn pass [m-value]
- (fn [state]
- m-value))
-
-(def get-state
- (fn [state]
- (return* state state)))
-
-(defn within [slot monad]
- (fn [state]
- (let [=return (monad (get state slot))]
- (match =return
- [::ok [?state ?value]]
- [::ok [(assoc state slot ?state) ?value]]
- _
- =return))))
-
-(defn ^:private normalize-char [char]
- (case char
- \* "_ASTER_"
- \+ "_PLUS_"
- \- "_DASH_"
- \/ "_SLASH_"
- \\ "_BSLASH_"
- \_ "_UNDERS_"
- \% "_PERCENT_"
- \$ "_DOLLAR_"
- \' "_QUOTE_"
- \` "_BQUOTE_"
- \@ "_AT_"
- \^ "_CARET_"
- \& "_AMPERS_"
- \= "_EQ_"
- \! "_BANG_"
- \? "_QM_"
- \: "_COLON_"
- \; "_SCOLON_"
- \. "_PERIOD_"
- \, "_COMMA_"
- \< "_LT_"
- \> "_GT_"
- \~ "_TILDE_"
- ;; default
- char))
-
-(defn normalize-ident [ident]
- (reduce str "" (map normalize-char ident)))
-
-(defonce loader (doto (-> (java.io.File. "./") .toURL vector into-array java.net.URLClassLoader.)
- (->> (prn 'loader))))