From 13e482fefb3090645a941a643c73eadcbf0a1a34 Mon Sep 17 00:00:00 2001
From: Marcin Chrzanowski <marcin.j.chrzanowski@gmail.com>
Date: Wed, 30 Aug 2017 18:27:55 -0400
Subject: Implement division

---
 src/dice.js   | 7 +++++++
 src/lexer.js  | 1 +
 src/parser.js | 1 +
 3 files changed, 9 insertions(+)

(limited to 'src')

diff --git a/src/dice.js b/src/dice.js
index abe3c4b..d47455e 100644
--- a/src/dice.js
+++ b/src/dice.js
@@ -50,6 +50,12 @@ const multiply = (die1, die2) => {
   }
 }
 
+const divide = (die1, die2) => {
+  return () => {
+    return [() => Math.floor(roll(die1) / roll(die2))]
+  }
+}
+
 const bonusAdd = (die1, die2) => {
   return () => {
     return die1().map(die => {
@@ -194,6 +200,7 @@ exports.d = d
 exports.add = add
 exports.subtract = subtract
 exports.multiply = multiply
+exports.divide = divide
 exports.bonusAdd = bonusAdd
 exports.bonusSubtract = bonusSubtract
 exports.negative = negative
diff --git a/src/lexer.js b/src/lexer.js
index c3eec8a..59fba16 100644
--- a/src/lexer.js
+++ b/src/lexer.js
@@ -19,6 +19,7 @@ newLexemeType('d', 'd')
 newLexemeType('bigPlus', ' \\+ ' )
 newLexemeType('bigMinus', ' - ')
 newLexemeType('bigTimes', ' \\* ')
+newLexemeType('bigDivide', ' / ')
 newLexemeType('plus', '\\+')
 newLexemeType('minus', '-')
 newLexemeType('(', '\\(')
diff --git a/src/parser.js b/src/parser.js
index 1a1e5d4..fd0fd59 100644
--- a/src/parser.js
+++ b/src/parser.js
@@ -72,6 +72,7 @@ newDieOperation('t')
 newInfix('bigPlus', 20, { type: 'add' })
 newInfix('bigMinus', 20, { type: 'subtract' })
 newInfix('bigTimes', 23, { type: 'multiply' })
+newInfix('bigDivide', 23, { type: 'divide' })
 newInfix('plus', 25, { type: 'bonusAdd' })
 newInfix('minus', 25, { type: 'bonusSubtract' })
 newSymbol('minus', (parser) => {
-- 
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