Merge pull request #462 from eserozvataf/master

Added isWhitelisted validator.

Author: chriso

README.md

@@ -75,6 +75,7 @@ $ bower install validator-js
 - **isUUID(str [, version])** - check if the string is a UUID (version 3, 4 or 5).
 - **isUppercase(str)** - check if the string is uppercase.
 - **isVariableWidth(str)** - check if the string contains a mixture of full and half-width chars.
+- **isWhitelisted(str, chars)** - checks characters if they appear in the whitelist.
 - **matches(str, pattern [, modifiers])** - check if string matches the pattern. Either `matches('foo', /foo/i)` or `matches('foo', 'foo', 'i')`.
 
 ### Sanitizers

test/validators.js

@@ -2402,4 +2402,9 @@ describe('Validators', function () {
             ]
         });
     });
+
+    it('should validate whitelisted characters', function () {
+        test({ validator: 'isWhitelisted', args: ['abcdefghijklmnopqrstuvwxyz-'], valid: ['foo', 'foobar', 'baz-foo'],
+            invalid: ['foo bar', 'fo.bar', 'türkçe'] });
+    });
 });

validator.js

@@ -582,6 +582,16 @@
         return false;
     };
 
+    validator.isWhitelisted = function (str, chars) {
+        for (var i = str.length - 1; i >= 0; i--) {
+            if (chars.indexOf(str[i]) === -1) {
+                return false;
+            }
+        }
+
+        return true;
+    };
+
     validator.isCreditCard = function (str) {
         var sanitized = str.replace(/[^0-9]+/g, '');
         if (!creditCard.test(sanitized)) {