version upgrade.

README.md

@@ -71,18 +71,18 @@ var through = require('through-gulp');
 function sample() {
   // creating a stream through which each file will pass
   var stream = through(function(file, encoding,callback) {
-  	  // do whatever necessary to process the file 
-      if (file.isNull()) {
+  	// do whatever necessary to process the file
+    if (file.isNull()) {
 
-      }
-      if (file.isBuffer()) {
+    }
+    if (file.isBuffer()) {
 
-      }
-      if (file.isStream()) {
+    }
+    if (file.isStream()) {
 
-      }
-      // just pipe data next, or just do nothing to process file later in flushFunction
-      // never forget callback to indicate that the file has been processed.
+    }
+    // just pipe data next, or just do nothing to process file later in flushFunction
+    // never forget callback to indicate that the file has been processed.
       this.push(file);
       callback();
     },function(callback) {
@@ -99,16 +99,15 @@ function sample() {
 module.exports = sample;
 ```
 
-
 then use the plugin with gulp
 
 ```javascript
 var gulp = require('gulp');
 var sample = require('sample');
 gulp.task('sample', function() {
-	return gulp.src(['source file'])
-	  .pipe(sample())
-	  .pipe(gulp.dest('file destiny'))
+  return gulp.src(['source file'])
+	.pipe(sample())
+	.pipe(gulp.dest('file destiny'))
 });
 ```
 

index.js

@@ -1,7 +1,7 @@
 /**
  * Expose function to generate transform stream
  * @modules through-gulp
- * @versions v0.3.7
+ * @versions v0.3.8
  */
 
 /**
@@ -32,14 +32,6 @@ var util = require('util');
 var stream = require('stream');
 var through;
 
-/**
- * Define transform stream structure
- * @constructor
- */
-function Transform() {
-  stream.Transform.call(this, {objectMode: true});
-}
-util.inherits(Transform, stream.Transform);
 
 // Default value for stream.Transform
 function defaultTransformFunction(file, encoding, callback) {
@@ -57,6 +49,14 @@ function defaultFlushFunction(callback) {
  * @returns {transformStream}
  */
 through = function(transformFunction, flushFunction) {
+  /**
+   * Define transform stream structure
+   * @constructor
+   */
+  function Transform() {
+    stream.Transform.call(this, {objectMode: true});
+  }
+  util.inherits(Transform, stream.Transform);
 
   // use default function when not pass in
   Transform.prototype._transform =
@@ -72,6 +72,7 @@ through = function(transformFunction, flushFunction) {
   return new Transform();
 };
 
+
 /**
  * shortcut method for map files
  * @param {fileMap} map
@@ -84,6 +85,7 @@ through.map = function(map) {
   });
 };
 
+
 /**
  * shortcut method for filter files
  * @param {fileFilter} filter

package.json

@@ -1,6 +1,6 @@
 {
   "name": "through-gulp",
-  "version": "0.3.7",
+  "version": "0.3.8",
   "description": "A tiny wrapper around Node stream Transform, to simplify gulp plulgins development",
   "main": "index.js",
   "repository": {