add filenamePattern option to pass different file extensions

.editorconfig

@@ -0,0 +1,10 @@
+[*]
+end_of_line = lf
+
+[*.{js}]
+indent_style = space
+indent_size = 2
+
+[*.{json}]
+indent_style = space
+indent_size = 2

.gitignore

@@ -1 +1,2 @@
 node_modules
+.idea

index.js

@@ -4,23 +4,28 @@ var through = require('through');
 var filenamePattern = /\.(html|handlebars|hbs)$/;
 
 var wrap = function (template) {
-  return 'var templater = require("handlebars/runtime")["default"].template;' +
-         'module.exports = templater(' + template + ');'
+    return 'var templater = require("handlebars/runtime")["default"].template;' +
+        'module.exports = templater(' + template + ');'
 }
 
-module.exports = function (file) {
-  if (!filenamePattern.test(file)) return through();
+module.exports = function (file, options) {
+    if (!options.filenamePattern) {
+        options.filenamePattern = filenamePattern;
+    }
 
-  var input = '';
-  var write = function (buffer) {
-    input += buffer;
-  }
+    var regexp = new RegExp(options.filenamePattern);
+    if (!regexp.test(file)) return through();
 
-  var end = function () {
-    this.queue(wrap(handlebars.precompile(input)));
-    this.queue(null);
-  }
+    var input = '';
+    var write = function (buffer) {
+        input += buffer;
+    };
 
-  return through(write, end);
+    var end = function () {
+        this.queue(wrap(handlebars.precompile(input)));
+        this.queue(null);
+    };
 
-}
+    return through(write, end);
+
+};

package.json

@@ -1,6 +1,6 @@
 {
   "name": "browserify-handlebars",
-  "version": "1.0.0",
+  "version": "1.1.0",
   "description": "browserify transform for handlebars template files",
   "main": "index.js",
   "scripts": {
@@ -22,10 +22,10 @@
   },
   "homepage": "https://github.com/dlmanning/browserify-handlebars",
   "dependencies": {
-    "through": "~2.3.4"
+    "through": "~2.3.8"
   },
   "devDependencies": {
-    "handlebars": "~1.2.0"
+    "handlebars": "~4.0.5"
   },
   "peerDependencies": {
     "handlebars": ">= 1.2.0"