added arr class and tweaked input class.

system/arr.php

+<?php namespace System;
+
+class Arr {
+
+	/**
+	 * Get an item from an array.
+	 *
+	 * @param  string  $key
+	 * @param  string  $default
+	 * @param  array   $array
+	 * @return mixed
+	 */
+	public static function get($key, $default = null, $array = array())
+	{
+		if (is_null($key))
+		{
+			return $array;
+		}
+
+		return (array_key_exists($key, $array)) ? $array[$key] : $default;
+	}
+
+}
\ No newline at end of file

system/inflector.php

@@ -121,25 +121,16 @@ class Inflector {
 	 */
 	public static function plural($value)
 	{
-        // -----------------------------------------------------
-        // If we have already pluralized this word, return it.
-        // -----------------------------------------------------
         if (array_key_exists($value, static::$plural_cache))
         {
            return static::$plural_cache[$value];
         }
 
-        // -----------------------------------------------------
-        // Are the singular and plural forms the same?
-        // -----------------------------------------------------
         if (in_array(Str::lower($value), static::$uncountable))
         {
         	return static::$plural_cache[$value] = $value;
         }
 
-        // -----------------------------------------------------
-        // Is the plural form irregular?
-        // -----------------------------------------------------
         foreach (static::$irregular as $pattern => $irregular)
         {
             $pattern = '/'.$pattern.'$/i';
@@ -150,9 +141,6 @@ class Inflector {
             }
         }
 
-        // -----------------------------------------------------
-        // Check the plural forms for matches.
-        // -----------------------------------------------------
         foreach (static::$plural as $pattern => $plural)
         {
             if (preg_match($pattern, $value))
@@ -172,25 +160,16 @@ class Inflector {
 	 */
 	public static function singular($value)
 	{
-        // -----------------------------------------------------
-        // If we have already singularized this word, return it.
-        // -----------------------------------------------------
         if (array_key_exists($value, static::$singular_cache))
         {
            return static::$singular_cache[$value];
         }
 
-		// -----------------------------------------------------
-		// Are the singular and plural forms the same?
-		// -----------------------------------------------------
         if (in_array(Str::lower($value), static::$uncountable))
         {
         	return static::$singular_cache[$value] = $value;
         }
 
-		// -----------------------------------------------------
-		// Is the plural form irregular?
-		// -----------------------------------------------------
         foreach (static::$irregular as $irregular => $pattern)
         {
             $pattern = '/'.$pattern.'$/i';
@@ -201,9 +180,6 @@ class Inflector {
             }
         }
 
-		// -----------------------------------------------------
-		// Check the singular forms for matches.
-		// -----------------------------------------------------
         foreach (static::$singular as $pattern => $singular)
         {
             if (preg_match($pattern, $value))

system/input.php

@@ -9,34 +9,16 @@ class Input {
 	 */
 	public static $input;
 
-	/**
-	 * Determine if the input data contains an item or set of items.
-	 *
-	 * @return bool
-	 */
-	public static function has()
-	{
-		foreach (func_get_args() as $key)
-		{
-			if (is_null(static::get($key)))
-			{
-				return false;
-			}
-		}
-
-		return true;
-	}
-
 	/**
 	 * Determine if the input data contains an item or set of items that are not empty.
 	 *
 	 * @return bool
 	 */
-	public static function filled()
+	public static function has()
 	{
 		foreach (func_get_args() as $key)
 		{
-			if ( ! static::has($key) or trim((string) static::get($key)) == '')
+			if (is_null(static::get($key)) or trim((string) static::get($key)) == '')
 			{
 				return false;
 			}
@@ -59,11 +41,12 @@ class Input {
 			static::hydrate();
 		}
 
-		return static::from_array(static::$input, $key, $default);
+		return Arr::get($key, $default, static::$input);
 	}
 
 	/**
-	 * Determine if the old input data contains an item or set of items.
+	 * Determine if the old input data contains an item or set of
+	 * items that are not empty.
 	 *
 	 * @return bool
 	 */
@@ -71,25 +54,7 @@ class Input {
 	{
 		foreach (func_get_args() as $key)
 		{
-			if (is_null(static::old($key)))
-			{
-				return false;
-			}
-		}
-
-		return true;
-	}
-
-	/**
-	 * Determine if the old input data contains an item or set of items that are not empty.
-	 *
-	 * @return bool
-	 */
-	public static function was_filled()
-	{
-		foreach (func_get_args() as $key)
-		{
-			if ( ! static::had($key) or trim((string) static::old($key)) == '')
+			if (is_null(static::old($key)) or trim((string) static::old($key)) == '')
 			{
 				return false;
 			}
@@ -112,25 +77,7 @@ class Input {
 			throw new \Exception("Sessions must be enabled to retrieve old input data.");
 		}
 
-		return static::from_array(Session::get('laravel_old_input', array()), $key, $default);
-	}
-
-	/**
-	 * Get an item from an array. If no key is specified, the entire array will be returned.
-	 *
-	 * @param  array   $array
-	 * @param  string  $key
-	 * @param  mixed   $default
-	 * @return string
-	 */
-	private static function from_array($array, $key, $default)
-	{
-		if (is_null($key))
-		{
-			return $array;
-		}
-
-		return (array_key_exists($key, $array)) ? $array[$key] : $default;
+		return Arr::get($key, $default, Session::get('laravel_old_input', array()));
 	}
 
 	/**