IOS regular expression verification password ID card mobile number

IOS regular expression verification password ID card mobile number

In the project, the easiest way we are verifying user input is to use regular expressions. The ios system also provides a very convenient method, allowing us to easily verify username, password, ID card, mobile phone number, etc.;

Below is the verification method of the regular expression I used in the project.

Because it is more commonly used, it is best to encapsulate it into + static method for easy use:

I encapsulate the commonly used methods into a Utils class using static methods and call them directly using the class name:

Header file:

// 
//  
// AutoSizing 
// 
// Created by on 15/2/7. 
// Copyright (c) 2015 /yangbingbinga. All rights reserved.// 
 
#import &lt;Foundation/&gt; 
 
@interface Utils : NSObject 
#pragma regular matching mobile number+ (BOOL)checkTelNumber:(NSString *) telNumber; 
#pragma regular match user password 6-18 digits and letter combinations+ (BOOL)checkPassword:(NSString *) password; 
#pragma Regularly match user name, 20 digits Chinese or English+ (BOOL)checkUserName : (NSString *) userName; 
#pragma regular matching user ID number+ (BOOL)checkUserIdCard: (NSString *) idCard; 
#pragma regular matching employee number, 12 digits+ (BOOL)checkEmployeeNumber : (NSString *) number; 
#pragma regular matching URL+ (BOOL)checkURL : (NSString *) url; 
@end

.m implementation file:

// 
//  
// AutoSizing 
// 
// Created by on 15/2/7. 
// Copyright (c) 2015 /yangbingbinga. All rights reserved.// 
 
#import "" 
 
@implementation Utils 
#pragma regular matching mobile number+ (BOOL)checkTelNumber:(NSString *) telNumber 
{ 
  NSString *pattern = @"^1+[3578]+\\d{9}"; 
  NSPredicate *pred = [NSPredicate predicateWithFormat:@"SELF MATCHES %@", pattern]; 
  BOOL isMatch = [pred evaluateWithObject:telNumber]; 
  return isMatch; 
} 
 
 
#pragma regular match user password 6-18 digits and letter combinations+ (BOOL)checkPassword:(NSString *) password 
{ 
  NSString *pattern = @"^(?![0-9]+$)(?![a-zA-Z]+$)[a-zA-Z0-9]{6,18}"; 
  NSPredicate *pred = [NSPredicate predicateWithFormat:@"SELF MATCHES %@", pattern]; 
  BOOL isMatch = [pred evaluateWithObject:password]; 
  return isMatch; 
   
} 
 
#pragma Regularly match user name, 20 digits Chinese or English+ (BOOL)checkUserName : (NSString *) userName 
{ 
  NSString *pattern = @"^[a-zA-Z\u4E00-\u9FA5]{1,20}"; 
  NSPredicate *pred = [NSPredicate predicateWithFormat:@"SELF MATCHES %@", pattern]; 
  BOOL isMatch = [pred evaluateWithObject:userName]; 
  return isMatch; 
   
} 
 
 
#pragma regular match user ID number 15 or 18 digits+ (BOOL)checkUserIdCard: (NSString *) idCard 
{ 
  NSString *pattern = @"(^[0-9]{15}$)|([0-9]{17}([0-9]|X)$)"; 
  NSPredicate *pred = [NSPredicate predicateWithFormat:@"SELF MATCHES %@", pattern]; 
  BOOL isMatch = [pred evaluateWithObject:idCard]; 
  return isMatch; 
} 
 
#pragma regular matching employee number, 12 digits+ (BOOL)checkEmployeeNumber : (NSString *) number 
{ 
  NSString *pattern = @"^[0-9]{12}"; 
   
  NSPredicate *pred = [NSPredicate predicateWithFormat:@"SELF MATCHES %@", pattern]; 
  BOOL isMatch = [pred evaluateWithObject:number]; 
  return isMatch; 
   
} 
 
#pragma regular matching URL+ (BOOL)checkURL : (NSString *) url 
{ 
  NSString *pattern = @"^[0-9A-Za-z]{1,50}"; 
  NSPredicate *pred = [NSPredicate predicateWithFormat:@"SELF MATCHES %@", pattern]; 
  BOOL isMatch = [pred evaluateWithObject:url]; 
  return isMatch; 
   
} 
 
@end

Example of usage:

if ([Utils checkTelNumber:@"18801112020"]) //The matching result is YES{ 
  NSLog(@"Mobile phone number format is correct"); 
} 
else                    //The matching result is NO{ 
  NSLog(@"Mobile phone number format"); 
}

Return a boolean value. According to the boolean value, we can do the corresponding operation.

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