Added Number extension

lib/Twig/Extensions/Extension/Number.php

@@ -0,0 +1,68 @@
+<?php
+
+/**
+ * This file is part of Twig.
+ *
+ * (c) 2009 Fabien Potencier
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ *
+ * @author Tim Nagel <tim@nagel.com.au>
+ * @package Twig
+ * @subpackage Twig-extensions
+ */
+class Twig_Extensions_Extension_Number extends Twig_Extension
+{
+    /**
+     * Returns a list of filters.
+     *
+     * @return array
+     */
+    public function getFilters()
+    {
+        return array(
+            'currency' => new Twig_Filter_Function('twig_format_currency'),
+        );
+    }
+
+    /**
+     * Name of this extension
+     *
+     * @return string
+     */
+    public function getName()
+    {
+        return 'Number';
+    }
+}
+
+if (class_exists('NumberFormatter')) {
+    function twig_format_currency($value, $currency, $locale = null)
+    {
+        static $formatter;
+
+        if (null === $locale) {
+            $locale = Locale::getDefault();
+        }
+
+        if (null === $formatter) {
+            $formatter = new NumberFormatter($locale, NumberFormatter::CURRENCY);
+        }
+
+        return $formatter->formatCurrency($value, $currency);
+    }
+} else {
+    function twig_format_currency($value, $currency = null, $locale = null)
+    {
+        if (null !== $currency) {
+            throw new \LogicException("You must have Intl enabled to specify a currency. Pass null if you\'re trying to set the locale.");
+        }
+
+        if (null !== $locale) {
+            setlocale(LC_MONETARY, $locale);
+        }
+
+        return money_format("%i", $value);
+    }
+}