├── .gitignore ├── LICENSE ├── README.md ├── doc └── intro.md ├── project.clj ├── src └── maya │ ├── core.clj │ └── util.cljc └── test └── maya └── core_test.clj /.gitignore: -------------------------------------------------------------------------------- 1 | /target 2 | /classes 3 | /checkouts 4 | pom.xml 5 | pom.xml.asc 6 | *.jar 7 | *.class 8 | /.lein-* 9 | /.nrepl-port 10 | .hgignore 11 | .hg/ 12 | -------------------------------------------------------------------------------- /LICENSE: -------------------------------------------------------------------------------- 1 | THE ACCOMPANYING PROGRAM IS PROVIDED UNDER THE TERMS OF THIS ECLIPSE PUBLIC 2 | LICENSE ("AGREEMENT"). ANY USE, REPRODUCTION OR DISTRIBUTION OF THE PROGRAM 3 | CONSTITUTES RECIPIENT'S ACCEPTANCE OF THIS AGREEMENT. 4 | 5 | 1. 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Each new version of the Agreement will 199 | be given a distinguishing version number. The Program (including 200 | Contributions) may always be distributed subject to the version of the 201 | Agreement under which it was received. In addition, after a new version of 202 | the Agreement is published, Contributor may elect to distribute the Program 203 | (including its Contributions) under the new version. Except as expressly 204 | stated in Sections 2(a) and 2(b) above, Recipient receives no rights or 205 | licenses to the intellectual property of any Contributor under this 206 | Agreement, whether expressly, by implication, estoppel or otherwise. All 207 | rights in the Program not expressly granted under this Agreement are 208 | reserved. 209 | 210 | This Agreement is governed by the laws of the State of New York and the 211 | intellectual property laws of the United States of America. No party to this 212 | Agreement will bring a legal action under this Agreement more than one year 213 | after the cause of action arose. Each party waives its rights to a jury trial 214 | in any resulting litigation. 215 | -------------------------------------------------------------------------------- /README.md: -------------------------------------------------------------------------------- 1 | # maya 2 | 3 | ## A Clojure(Script) DSL for math and numeric work 4 | 5 | Leiningen: `[maya "1.1.0-SNAPSHOT"]` 6 | Read the [introductory blog-post](http://pizzaforthought.blogspot.in/2015/01/maya-dsl-for-math-and-numerical-work.html). 7 | 8 | ## Usage 9 | Expressions are always evaluated from left to right. 10 | ```clojure 11 | (require '[maya.core :refer :all] 12 | '[maya.util :refer :all]) 13 | 14 | (defn quadratic 15 | [^double a ^double b ^double c] 16 | (|> 4 * a * c :as d, 17 | b * b - d ** 0.5 :as D, 18 | 2 * a :as t, (- b) :as -b, 19 | -b + D / t :as x1, 20 | -b - D / t :as x2, 21 | [x1 x2])) 22 | 23 | (quadratic 1 2 -3) ;=> [1.0 -3.0] 24 | ``` 25 | 26 | ## License 27 | 28 | Copyright © 2015 Divyansh Prakash 29 | 30 | Distributed under the Eclipse Public License version 1.0 31 | -------------------------------------------------------------------------------- /doc/intro.md: -------------------------------------------------------------------------------- 1 | # Introduction to maya 2 | 3 | To understand the rationale behind `maya` and how it works behind the scenes, read the [original blog-post](http://pizzaforthought.blogspot.in/2015/01/maya-dsl-for-math-and-numerical-work.html). 4 | -------------------------------------------------------------------------------- /project.clj: -------------------------------------------------------------------------------- 1 | (defproject maya "1.1.0-SNAPSHOT" 2 | :description "A Clojure(Script) DSL for math and numerical work" 3 | :url "http://github.com/divs1210/maya" 4 | :license {:name "Eclipse Public License" 5 | :url "http://www.eclipse.org/legal/epl-v10.html"} 6 | :dependencies [[org.clojure/clojure "1.8.0"]]) 7 | -------------------------------------------------------------------------------- /src/maya/core.clj: -------------------------------------------------------------------------------- 1 | (ns maya.core) 2 | 3 | (defmacro |-> 4 | "(|-> 1 + 5 * 2 / 3) ;=> (-> 1 (+ 5) (* 2) (/ 3)) ;=> 4" 5 | [exp & f-x-pairs] 6 | (if (even? (count f-x-pairs)) 7 | `(-> ~exp 8 | ~@(for [[f x] (partition 2 f-x-pairs)] 9 | (list f x))) 10 | (throw (Exception. "f-x-pairs should be even.")))) 11 | 12 | (defmacro |> 13 | "(|> 1 + 5 :as six, six * 2 :as twelve, twelve / 3 * 2) ;=> 8" 14 | [& exprs] 15 | (let [[exp [_ ?as & next-exprs :as E]] (split-with #(not= :as %) exprs)] 16 | (if (empty? E) 17 | (cons `|-> exp) 18 | `(let [~?as (|-> ~@exp)] 19 | (|> ~@next-exprs))))) 20 | -------------------------------------------------------------------------------- /src/maya/util.cljc: -------------------------------------------------------------------------------- 1 | (ns maya.util) 2 | 3 | (defn ** 4 | "Returns a raised to the power b" 5 | [^double a ^double b] 6 | (Math/pow a b)) 7 | -------------------------------------------------------------------------------- /test/maya/core_test.clj: -------------------------------------------------------------------------------- 1 | (ns maya.core-test 2 | (:require [clojure.test :refer :all] 3 | [maya.core :refer :all] 4 | [maya.util :refer :all])) 5 | 6 | (deftest a-test 7 | (testing "maya" 8 | (is (== (|> 1 + 5 :as six, 9 | six ** 2 :as thirty-six, 10 | thirty-six / 3) 11 | 12)))) 12 | 13 | --------------------------------------------------------------------------------