Merge pull request #4 from scriptoLLC/fixing-newline-string

fixing new line issue

Author: jonschlinkert

index.js

@@ -21,7 +21,8 @@ module.exports = function(str, options) {
   var newline = options.newline || '\n' + indent;
 
   var re = new RegExp('.{1,' + width + '}(\\s|$)|\\S+?(\\s|$)', 'g');
-  var res = indent + str.match(re).join(newline);
+  var lines = str.match(re) || [];
+  var res = indent + lines.join(newline);
   if (options.trim === true) {
     res = res.replace(/[ \t]*$/gm, '');
   }

test.js

@@ -33,5 +33,9 @@ describe('wrap', function () {
   it('should trim trailing whitespace:', function () {
     wrap(str, {trim: true}).should.equal('  A project without documentation is like a project\n  that doesn\'t exist. Verb solves this by making it\n  dead simple to generate project documentation,\n  using simple markdown templates, with zero\n  configuration required.');
   });
+
+  it('should handle strings with just newlines', function () {
+    wrap('\r\n', {indent: '\r\n', width: 18}).should.equal('\r\n');
+  });
 });