Handling empty string as a "split char by char" pattern

index.js

@@ -18,7 +18,7 @@ function split (matcher, mapper, options) {
   var maxLength = options && options.maxLength;
   if('function' === typeof matcher)
     mapper = matcher, matcher = null
-  if (!matcher)
+  if (typeof matcher !== "string" && !matcher)
     matcher = /\r?\n/
 
   function emit(stream, piece) {

test/split.asynct.js

@@ -48,6 +48,44 @@ exports ['split() works like String#split'] = function (test) {
 
 }
 
+exports ['split() handles empty string pattern like String#split'] = function (test) {
+  var readme = join(__filename)
+    , expected = fs.readFileSync(readme, 'utf-8').split('')
+    , cs = split('')
+    , actual = []
+    , ended = false
+    , x = spec(cs).through()
+
+  var a = new Stream ()
+
+  a.write = function (l) {
+    actual.push(l.trim())
+  }
+  a.end = function () {
+
+      ended = true
+      expected.forEach(function (v,k) {
+        //String.split will append an empty string ''
+        //if the string ends in a split pattern.
+        //es.split doesn't which was breaking this test.
+        //clearly, appending the empty string is correct.
+        //tests are passing though. which is the current job.
+        if(v)
+          it(actual[k]).like(v)
+      })
+      //give the stream time to close
+      process.nextTick(function () {
+        test.done()
+        x.validate()
+      })
+  }
+  a.writable = true
+
+  fs.createReadStream(readme, {flags: 'r'}).pipe(cs)
+  cs.pipe(a)
+
+}
+
 exports ['split() takes mapper function'] = function (test) {
   var readme = join(__filename)
     , expected = fs.readFileSync(readme, 'utf-8').split('\n')