diff --git a/lib/Cake/I18n/I18n.php b/lib/Cake/I18n/I18n.php
index 16fb9983d..43cb4b1d5 100644
--- a/lib/Cake/I18n/I18n.php
+++ b/lib/Cake/I18n/I18n.php
@@ -643,6 +643,26 @@ class I18n {
 		return $definitions;
 	}
 
+/**
+ * Puts the parameters in raw translated strings
+ *
+ * @param string $translated The raw translated string
+ * @param array $args The arguments to put in the translation
+ * @return string Translated string with arguments
+ */
+	public static function insertArgs($translated, array $args) {
+		if (empty($args)) {
+			return $translated;
+		}
+
+		if (is_array($args[0])) {
+			$args = $args[0];
+		}
+
+		$translated = preg_replace('/(?<!%)%(?![%\'\-+bcdeEfFgGosuxX\d\.])/', '%%', $translated);
+		return vsprintf($translated, $args);
+	}
+
 /**
  * Auxiliary function to parse a symbol from a locale definition file
  *
diff --git a/lib/Cake/basics.php b/lib/Cake/basics.php
index 02c023b10..f5984b2b7 100644
--- a/lib/Cake/basics.php
+++ b/lib/Cake/basics.php
@@ -552,14 +552,8 @@ if (!function_exists('__')) {
 
 		App::uses('I18n', 'I18n');
 		$translated = I18n::translate($singular);
-		if ($args === null) {
-			return $translated;
-		} elseif (!is_array($args)) {
-			$args = array_slice(func_get_args(), 1);
-		}
-
-		$translated = preg_replace('/(?<!%)%(?![%\'\-+bcdeEfFgGosuxX\d\.])/', '%%', $translated);
-		return vsprintf($translated, $args);
+		$arguments = func_get_args();
+		return I18n::insertArgs($translated, array_slice($arguments, 1));
 	}
 
 }
@@ -584,14 +578,8 @@ if (!function_exists('__n')) {
 
 		App::uses('I18n', 'I18n');
 		$translated = I18n::translate($singular, $plural, null, I18n::LC_MESSAGES, $count);
-		if ($args === null) {
-			return $translated;
-		} elseif (!is_array($args)) {
-			$args = array_slice(func_get_args(), 3);
-		}
-
-		$translated = preg_replace('/(?<!%)%(?![%\'\-+bcdeEfFgGosuxX\d\.])/', '%%', $translated);
-		return vsprintf($translated, $args);
+		$arguments = func_get_args();
+		return I18n::insertArgs($translated, array_slice($arguments, 3));
 	}
 
 }
@@ -613,14 +601,8 @@ if (!function_exists('__d')) {
 		}
 		App::uses('I18n', 'I18n');
 		$translated = I18n::translate($msg, null, $domain);
-		if ($args === null) {
-			return $translated;
-		} elseif (!is_array($args)) {
-			$args = array_slice(func_get_args(), 2);
-		}
-
-		$translated = preg_replace('/(?<!%)%(?![%\'\-+bcdeEfFgGosuxX\d\.])/', '%%', $translated);
-		return vsprintf($translated, $args);
+		$arguments = func_get_args();
+		return I18n::insertArgs($translated, array_slice($arguments, 2));
 	}
 
 }
@@ -646,14 +628,8 @@ if (!function_exists('__dn')) {
 		}
 		App::uses('I18n', 'I18n');
 		$translated = I18n::translate($singular, $plural, $domain, I18n::LC_MESSAGES, $count);
-		if ($args === null) {
-			return $translated;
-		} elseif (!is_array($args)) {
-			$args = array_slice(func_get_args(), 4);
-		}
-
-		$translated = preg_replace('/(?<!%)%(?![%\'\-+bcdeEfFgGosuxX\d\.])/', '%%', $translated);
-		return vsprintf($translated, $args);
+		$arguments = func_get_args();
+		return I18n::insertArgs($translated, array_slice($arguments, 4));
 	}
 
 }
@@ -690,14 +666,8 @@ if (!function_exists('__dc')) {
 		}
 		App::uses('I18n', 'I18n');
 		$translated = I18n::translate($msg, null, $domain, $category);
-		if ($args === null) {
-			return $translated;
-		} elseif (!is_array($args)) {
-			$args = array_slice(func_get_args(), 3);
-		}
-
-		$translated = preg_replace('/(?<!%)%(?![%\'\-+bcdeEfFgGosuxX\d\.])/', '%%', $translated);
-		return vsprintf($translated, $args);
+		$arguments = func_get_args();
+		return I18n::insertArgs($translated, array_slice($arguments, 3));
 	}
 
 }
@@ -738,14 +708,8 @@ if (!function_exists('__dcn')) {
 		}
 		App::uses('I18n', 'I18n');
 		$translated = I18n::translate($singular, $plural, $domain, $category, $count);
-		if ($args === null) {
-			return $translated;
-		} elseif (!is_array($args)) {
-			$args = array_slice(func_get_args(), 5);
-		}
-
-		$translated = preg_replace('/(?<!%)%(?![%\'\-+bcdeEfFgGosuxX\d\.])/', '%%', $translated);
-		return vsprintf($translated, $args);
+		$arguments = func_get_args();
+		return I18n::insertArgs($translated, array_slice($arguments, 5));
 	}
 
 }
@@ -778,14 +742,8 @@ if (!function_exists('__c')) {
 		}
 		App::uses('I18n', 'I18n');
 		$translated = I18n::translate($msg, null, null, $category);
-		if ($args === null) {
-			return $translated;
-		} elseif (!is_array($args)) {
-			$args = array_slice(func_get_args(), 2);
-		}
-
-		$translated = preg_replace('/(?<!%)%(?![%\'\-+bcdeEfFgGosuxX\d\.])/', '%%', $translated);
-		return vsprintf($translated, $args);
+		$arguments = func_get_args();
+		return I18n::insertArgs($translated, array_slice($arguments, 2));
 	}
 
 }