#4 :: Add new regexp sanitizer type

README.md

@@ -31,6 +31,7 @@ First, you must define your template
     	'double' => 'double',
     	'boolean' => 'bool',
     	'datetime' => 'datetime',
+        'validation_code' => 'regexp[^[0-9]{1,6}$]',
     	"persons[]" => [
     		'name' => 'string',
     		'eyes' => 'int',
@@ -73,6 +74,7 @@ After that, you are good to sanitize any input
     	'double' => '7876',
     	'boolean' => true,
     	'datetime' => '2017-11-11 13:50:10',
+        'validation_code' => 123456,
     	'persons' => [
     		[
     			'name' => 'jhon',
@@ -132,6 +134,8 @@ Output of the previous call
                 [timezone] => America/Santiago
             )
 
+        [validation_code] => 123456
+
         [persons] => Array
             (
                 [0] => Array

src/Sanitizer/Template/TemplateSanitizer.php

@@ -12,6 +12,7 @@
 use Gcore\Sanitizer\Type\TypeString;
 use Gcore\Sanitizer\Type\TypeFixedValues;
 use Gcore\Sanitizer\Template\RequiredFieldsException;
+use Gcore\Sanitizer\Type\TypeRegexp;
 use InvalidArgumentException;
 use LogicException;
 use RuntimeException;
@@ -75,7 +76,7 @@ public function getType($rule, string $fieldName = '') : TypeInterface
 				case 'datetime' : $type = new TypeDatetime; break;
 				case 'double' : $type = new TypeDouble; break;
 				case 'email' : $type = new TypeEmail; break;
-				default: throw new InvalidArgumentException('Invalid type ' . $rule);
+				default: $type = $this->getCustomSanitizer($rule);
 			}
 
 			$type = $isList ? new TypeArray($type) : $type;
@@ -220,4 +221,12 @@ private static function isAssoc(array $arr) : bool
 		if (array() === $arr) return false;
 		return array_keys($arr) !== range(0, count($arr) - 1);
 	}
+
+	private function getCustomSanitizer(string $rule) {
+		if (strpos($rule, 'regexp') > 0) {
+			return new TypeRegexp;
+		}
+
+		throw new InvalidArgumentException('Invalid type ' . $rule);
+	}
 }

src/Sanitizer/Type/TypeRegexp.php

@@ -0,0 +1,17 @@
+<?php namespace Gcore\Sanitizer\Type;
+
+use Gcore\Sanitizer\Type\TypeInterface;
+
+/**
+ * Class to sanitize regular expressions
+ */
+class TypeRegexp implements TypeInterface
+{
+	/**
+	 * {@inheritDoc}
+	 */
+	public function sanitize($value)
+	{
+		return $value;
+	}
+}