Simple Objective-C solution for text validation.

Currently available default validators:

• Required validator

• Email validator
• Alpha validator
• Numeric validator
• Length validator
• RegularExpression validator

• Xcode 5.0 or higher
• Apple LLVM compiler
• iOS 5.0 or higher
• ARC

The recommended approach for installating InputValidators is via the CocoaPods package manager.

Install CocoaPods if not already available:

$ [sudo] gem install cocoapods
$ pod setup

Change to the directory of your Xcode project:

$ cd /path/to/MyProject
$ touch Podfile
$ edit Podfile

Edit your Podfile and add InputValidators:

pod 'InputValidators', '~> 0.3.2'

Install into your Xcode project:

$ pod install

Open your project in Xcode from the .xcworkspace file

$ open MyProject.xcworkspace

All you need to do is drop InputValidators files into your project, and add #import "LKValidators.h" to the top of classes that will use it.

NSString *emailString = @"email@example.com"

InputValidator *validator = [LKEmailInputValidator validator];
NSError *error = nil;
BOOL isValid = [validator validateInput:emailString error:&error];

if (!isValid) {
  NSLog(@"%@", [error localizedFailureReason]);
}

NSString *emailString = @"email@example.com"

NSArray *validators = @[[LKRequiredInputValidator validator], [LKEmailInputValidator validator]];
NSError *error = nil;
BOOL isValid = [LKValidator validateInput:emailString validators:validators error:&error];

if (!isValid) {
  NSLog(@"%@", [error localizedFailureReason]);
}

InputValidators is available under the MIT license.

Copyright © 2013-2014 Ivan Lisovoy, Denis Kotenko.

Permission is hereby granted, free of charge, to any person obtaining a copy of this software and associated documentation files (the "Software"), to deal in the Software without restriction, including without limitation the rights to use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the Software, and to permit persons to whom the Software is furnished to do so, subject to the following conditions:

The above copyright notice and this permission notice shall be included in all copies or substantial portions of the Software.

THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.