From 60b9cf1270ee18da387a2bafcde99e91183343e2 Mon Sep 17 00:00:00 2001
From: Antonio Scandurra <me@as-cii.com>
Date: Thu, 18 Feb 2016 14:12:44 +0100
Subject: [PATCH] :racehorse: Cache regexes in getRegexForProperty

---
 src/language-mode.coffee | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/src/language-mode.coffee b/src/language-mode.coffee
index ac8a5af76..dc5003cac 100644
--- a/src/language-mode.coffee
+++ b/src/language-mode.coffee
@@ -10,6 +10,7 @@ class LanguageMode
   # editor - The {TextEditor} to associate with
   constructor: (@editor, @config) ->
     {@buffer} = @editor
+    @regexesByPattern = {}
 
   destroy: ->
 
@@ -328,7 +329,8 @@ class LanguageMode
 
   getRegexForProperty: (scopeDescriptor, property) ->
     if pattern = @config.get(property, scope: scopeDescriptor)
-      new OnigRegExp(pattern)
+      @regexesByPattern[pattern] ?= new OnigRegExp(pattern)
+      @regexesByPattern[pattern]
 
   increaseIndentRegexForScopeDescriptor: (scopeDescriptor) ->
     @getRegexForProperty(scopeDescriptor, 'editor.increaseIndentPattern')