正则判断

.h文件

 1 #import <Foundation/Foundation.h>  
 2   
 3 @interface Utils : NSObject  
 4 #pragma 正则匹配手机号  
 5 + (BOOL)checkTelNumber:(NSString *) telNumber;  
 6 #pragma 正则匹配用户密码6-18位数字和字母组合  
 7 + (BOOL)checkPassword:(NSString *) password;  
 8 #pragma 正则匹配用户姓名,20位的中文或英文  
 9 + (BOOL)checkUserName : (NSString *) userName;  
10 #pragma 正则匹配用户身份证号  
11 + (BOOL)checkUserIdCard: (NSString *) idCard;  
12 #pragma 正则匹员工号,12位的数字  
13 + (BOOL)checkEmployeeNumber : (NSString *) number;  
14 #pragma 正则匹配URL  
15 + (BOOL)checkURL : (NSString *) url;  
16 @end

.m文件

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  #import "Utils.h"  
    
 @implementation Utils  
 #pragma 正则匹配手机号  
 + (BOOL)checkTelNumber:(NSString *) telNumber  
 {  
 
mobile = [mobile stringByReplacingOccurrencesOfString:@" " withString:@""];
 
    if (mobile.length != 11)
 
    {
 
        return NO;
 
    }else{
 
        /**
 
         * 移动号段正则表达式
 
         */
 
        NSString *CM_NUM = @"^((13[4-9])|(147)|(15[0-2,7-9])|(178)|(18[2-4,7-8]))\\d{8}|(1705)\\d{7}$";
 
        /**
 
         * 联通号段正则表达式
 
         */
 
        NSString *CU_NUM = @"^((13[0-2])|(145)|(15[5-6])|(176)|(18[5,6]))\\d{8}|(1709)\\d{7}$";
 
        /**
 
         * 电信号段正则表达式
 
         */
 
        NSString *CT_NUM = @"^((133)|(153)|(177)|(18[0,1,9]))\\d{8}$";
 
        NSPredicate *pred1 = [NSPredicate predicateWithFormat:@"SELF MATCHES %@", CM_NUM];
 
        BOOL isMatch1 = [pred1 evaluateWithObject:mobile];
 
        NSPredicate *pred2 = [NSPredicate predicateWithFormat:@"SELF MATCHES %@", CU_NUM];
 
        BOOL isMatch2 = [pred2 evaluateWithObject:mobile];
 
        NSPredicate *pred3 = [NSPredicate predicateWithFormat:@"SELF MATCHES %@", CT_NUM];
 
        BOOL isMatch3 = [pred3 evaluateWithObject:mobile];
 
         
 
        if (isMatch1 || isMatch2 || isMatch3) {
 
            return YES;
 
        }else{
 
            return NO;
 
        }
 
    }
 
  
 
 }  
    
  
 #pragma 正则匹配用户密码6-18位数字和字母组合  
+ (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 正则匹配用户姓名,20位的中文或英文  
 + (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 正则匹配用户身份证号15或18位  
 + (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 正则匹员工号,12位的数字  
 + (BOOL)checkEmployeeNumber : (NSString *) number  
 {  
     NSString *pattern = @"^[0-9]{12}";  
        
     NSPredicate *pred = [NSPredicate predicateWithFormat:@"SELF MATCHES %@", pattern];  
     BOOL isMatch = [pred evaluateWithObject:number];  
     return isMatch;  
       
 }  
   
 #pragma 正则匹配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 

判断用户密码是否规范

#pragma 正则匹配密码 
+(BOOL)judgePassWordLegal:(NSString *)pass;
 
 
/**
*  判断用户输入的密码是否符合规范，符合规范的密码要求：
1. 长度6 ~ 10
2. 密码中必须同时包含数字和字母
  
 ^(?![0-9]+$)(?![a-zA-Z]+$)[0-9A-Za-z]{8,16}$
 分开来注释一下：
 ^ 匹配一行的开头位置
 (?![0-9]+$) 预测该位置后面不全是数字
 (?![a-zA-Z]+$) 预测该位置后面不全是字母
 [0-9A-Za-z] {6,10} 由6-10位数字或这字母组成
 $ 匹配行结尾位置
 注：(?!xxxx) 是正则表达式的负向零宽断言一种形式，标识预该位置后不是xxxx字符。
  
*/
+(BOOL)judgePassWordLegal:(NSString *)pass {
    BOOL result = false;
    if ([pass length] >= 6 && [pass length] <= 10){
        // 判断长度大于8位后再接着判断是否同时包含数字和字符
        NSString * regex = @"^(?![0-9]+$)(?![a-zA-Z]+$)[0-9A-Za-z]{6,10}$";
        NSPredicate *pred = [NSPredicate predicateWithFormat:@"SELF MATCHES %@", regex];
        result = [pred evaluateWithObject:pass];
    }
    return result;
}