simplified the implementation of the replace filter

lib/Twig/Extension/Core.php

@@ -48,7 +48,7 @@ public function getFilters()
             // formatting filters
             'date'    => new Twig_Filter_Function('twig_date_format_filter'),
             'format'  => new Twig_Filter_Function('sprintf'),
-            'replace' => new Twig_Filter_Function('twig_strtr'),
+            'replace' => new Twig_Filter_Function('strtr'),
 
             // encoding
             'url_encode'       => new Twig_Filter_Function('twig_urlencode_filter'),
@@ -458,23 +458,6 @@ function twig_in_filter($value, $compare)
     return false;
 }
 
-/**
- * Replaces placeholders in a string.
- *
- * <pre>
- *  {{ "I like %this% and %that%."|replace({'%this%': foo, '%that%': "bar"}) }}
- * </pre>
- *
- * @param string $pattern      A string
- * @param string $replacements The values for the placeholders
- *
- * @return string The string where the placeholders have been replaced
- */
-function twig_strtr($pattern, $replacements)
-{
-    return str_replace(array_keys($replacements), array_values($replacements), $pattern);
-}
-
 /**
  * Escapes a string.
  *

test/Twig/Tests/Fixtures/filters/replace.test

@@ -0,0 +1,8 @@
+--TEST--
+"replace" filter
+--TEMPLATE--
+{{ "I like %this% and %that%."|replace({'%this%': "foo", '%that%': "bar"}) }}
+--DATA--
+return array()
+--EXPECT--
+I like foo and bar.