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  1. 1. Objective-C RegEx

Objective-C RegEx

obj-c RegEx

Objective-C RegEx Categories

https://github.com/bendytree/Objective-C-RegEx-Categories

使用说明:将 RegExCategories.h RegExCategories.m 文件拖入工程中引入头文件即可.

 

==========================================================================

    //匹配电话号码(手机号以13， 15，18开头，八个 \d 数字字符)

    BOOL isMatch = [@”15910514636” isMatch:RX(@”^((13[0-9])|(15[^4,\D])|(18[0,0-9]))\d{8}$”)];

    NSLog(@”%d”, isMatch);

 

    //匹配邮箱

    BOOL isMatch = [@”705786230@qq.com“ isMatch:RX(@”[A-Z0-9a-z._%+-]+@[A-Za-z0-9.-]+\.[A-Za-z]{2,4}”)];

    NSLog(@”%d”, isMatch);

   

    //匹配用户名(用户名长度为6-20位之间,大小写字母或者数字均可)

    BOOL isMatch = [@”705786230” isMatch:RX(@”^[A-Za-z0-9]{6,20}+$”)];

    NSLog(@”%d”, isMatch);

 

    //匹配身份证号

    BOOL isMatch = [@”42120919831025587X” isMatch:RX(@”^(\d{14}|\d{17})(\d|[xX])$”)];

    NSLog(@”%d”, isMatch);

==========================================================================

 

    //创建一个正则表达式

    Rx* rx = RX(@”\d”);

    Rx* rx = [Rx rx:@”\d”];

    Rx* rx = [Rx rx:@”\d” ignoreCase:YES];

    

    //判断字符串是否匹配

    BOOL isMatch = [@”2345” isMatch:RX(@”^\d+$”)];

    

    //获取匹配的字符串

    NSString* age = [@”My dog is 3.” firstMatch:RX(@”\d+”)];

    

    //获取匹配的结果存储进数组

    NSArray* words = [@”Hey pal” match:RX(@”\w+”)];

    // words => @[ @”Hey”, @”pal” ]

    

    //能获取详细信息的匹配

    RxMatch* match = [@”12.34, 56.78” firstMatchWithDetails:RX(@”\d+([.]\d+)”)];

    // match.value => @”12.34”

    // match.range => NSRangeMake(0, 5);

    // match.original => @”12.34, 56.78”;

    // match.groups => @[ RxMatchGroup, RxMatchGroup ];

    

    //使用模板来替换匹配的字符串

    NSString* result = [@”My dog is 12.” replace:RX(@”\d+”) with:@”old”];

    // result => @”My dog is old.”

    

    //使用block来替换

    NSString* result = [RX(@”\w+”) replace:@”hi bud” withBlock:^(NSString* match){

        return [NSString stringWithFormat:@”%i”, match.length];

    }];

    // result => @”2 3”

    

    //获取详细匹配信息的block方式

    NSString* result = [RX(@”\w+”) replace:@”hi bud” withDetailsBlock:^(RxMatch* match){

        return [NSString stringWithFormat:@”%i”, match.value.length];

    }];

    // result => @”2 3”

==========================================================================

总结:正则表达式可用来按照一定模式来实现匹配字符串,替换字符串等等强大的功能,详细使用说明请参考该开源框架的使用示例.

 

 

 

其他:使用谓词来处理正则表达式示例

==========================================================================

    NSString *email = @”YouXianMing@163.com“;

    NSString *regex = @”[A-Z0-9a-z._%+-]+@[A-Za-z0-9.-]+\.[A-Za-z]{2,4}”;

    NSPredicate *predicate = [NSPredicate predicateWithFormat:@”SELF MATCHES %@”, regex];

    BOOL isValid = [predicate evaluateWithObject:email];

==========================================================================

文章目录
  1. 1. Objective-C RegEx