From 1da7144001c2b1b535b1d3a60a7ab12696bc9171 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?N=C3=BC?= <ekoeryanto@gmail.com>
Date: Wed, 17 Feb 2016 21:17:38 +0700
Subject: [PATCH] Update index.js

---
 index.js | 12 +++++++++++-
 1 file changed, 11 insertions(+), 1 deletion(-)

diff --git a/index.js b/index.js
index e9dc82c..cfbe20c 100644
--- a/index.js
+++ b/index.js
@@ -38,7 +38,17 @@ function split (matcher, mapper, options) {
   }
 
   function next (stream, buffer) {
-    var pieces = ((soFar != null ? soFar : '') + buffer).split(matcher)
+    var bufs = ((soFar != null ? soFar : '') + buffer);
+    var pieces = [];
+
+    if(options && 'function' === typeof options.split) {
+      pieces = options.split(bufs, matcher);
+    } else if(!isNaN(parseFloat(matcher)) && isFinite(matcher)) {
+      pieces = bufs.match(new RegExp(".{1,"+matcher+"}", "g"));
+    } else {
+      pieces = bufs.split(matcher);
+    }
+    
     soFar = pieces.pop()
 
     if (maxLength && soFar.length > maxLength)