From be3415a7cb219fe0244e726ccd0f232485672ed6 Mon Sep 17 00:00:00 2001
From: Marcin Chrzanowski <marcin.j.chrzanowski@gmail.com>
Date: Wed, 19 Jul 2017 23:13:41 -0400
Subject: Lex and parse explosions

---
 src/lexer.js  | 1 +
 src/parser.js | 8 ++++++++
 2 files changed, 9 insertions(+)

(limited to 'src')

diff --git a/src/lexer.js b/src/lexer.js
index 5e29e42..85579fb 100644
--- a/src/lexer.js
+++ b/src/lexer.js
@@ -24,6 +24,7 @@ newLexemeType('+', '\\+')
 newLexemeType('-', '-')
 newLexemeType('(', '\\(')
 newLexemeType(')', '\\)')
+newLexemeType('E', 'E')
 newSkippableLexeme('whitespace', '\\s+')
 
 const lex = (expressionString) => {
diff --git a/src/parser.js b/src/parser.js
index 3437f1a..9479abc 100644
--- a/src/parser.js
+++ b/src/parser.js
@@ -47,6 +47,14 @@ newSymbol('d', (parser) => {
   }
 })
 
+newSymbol('E', null, 30, (left, parser) => {
+  return {
+    type: 'E',
+    left: left,
+    right: parser.expression(29)
+  }
+})
+
 newSymbol('+', null, 20, (left, parser) => {
   return {
     type: 'add',
-- 
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