First drafting for Password generator.

Extended Settings handling to be able to use Tabs

MacPass/NSString+MPPasswordCreation.h

@@ -0,0 +1,45 @@
+//
+//  NSString+MPPasswordCreation.h
+//  MacPass
+//
+//  Created by Michael Starke on 29.03.13.
+//  Copyright (c) 2013 HicknHack Software GmbH. All rights reserved.
+//
+
+#import <Foundation/Foundation.h>
+
+typedef enum {
+  MPPasswordCharactersUpperCase = (1<<0), // NSCharacterset lowerCaseCharacterSet
+  MPPasswordCharactersLowerCase = (1<<1), // NSCharacterSet upperCaseCharacterSet
+  MPPasswordCharactersNumbers   = (1<<2), // NSCharacterSet numberCharacterSet
+  MPPasswordCharactersSymbols   = (1<<3)  // NSCharacterSet symbolCharacterSet
+} MPPasswordCharacterFlags;
+
+@interface NSString (MPPasswordCreation)
+
+/*
+ Generates a new password with the allowed charaters an the requests lenght
+ @param array with allowed NSChractersSets for creation
+ @param lenght lenght of the password to create
+ */
++ (NSString *)passwordWithCharactersets:(MPPasswordCharacterFlags)allowedCharacters length:(NSUInteger)theLength;
+/*
+ Generates a new password with the given length and allowed characters
+ @param Source string of allowed characters
+ @param lenght Lenght of the password to create
+ @return Password
+ */
++ (NSString *)passwordFromString:(NSString *)source length:(NSUInteger)length;
+
+/*
+ Creates a password containing only the characters in the string
+ @param Lenght of the password
+ */
+- (NSString *)passwordWithLength:(NSUInteger)length;
+
+/*
+ Returns a random Character from the String
+ */
+- (NSString *)randomCharacter;
+
+@end