iOS - 常用正则表达式_正则表达式 macro-优快云博客

本文链接：https://blog.youkuaiyun.com/Macro_13/article/details/49873211

本文介绍了一款用于iOS开发的Objective-C类——RegularHelp，该类提供了多种字符串验证功能，包括用户年龄、邮箱、手机号及金额的有效性检查。通过正则表达式实现了精确的数据格式校验。

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//
//  RegularHelp.h
//
#import <Foundation/Foundation.h>
@interface RegularHelp : NSObject
//数字匹配
+ (BOOL) validateUserAge:(NSString *)str;
//检验邮箱
+ (BOOL) validateUserEmail:(NSString *)str;
//检验手机号
+ (BOOL) validateUserPhone:(NSString *)str;
//验证是否为正数
+ (BOOL) validatePositiveNumber:(NSString *)str;
//
+ (BOOL) validateMoney:(NSString *)str;
@end

//
//  RegularHelp.m
//
#import "RegularHelp.h"
@implementation RegularHelp
+ (BOOL) validateUserAge:(NSString *)str {
    
    NSRegularExpression *regularexpression = [[NSRegularExpression alloc]
                                              initWithPattern:@"^[0-9]{1,2}$"
                                              options:NSRegularExpressionCaseInsensitive
                                              error:nil];
    NSUInteger numberofMatch = [regularexpression numberOfMatchesInString:str
                                                                  options:NSMatchingReportProgress
                                                                    range:NSMakeRange(0, str.length)];
    
    if(numberofMatch > 0)
    {
        NSLog(@"%@ isNumbericString: YES", str);
        return YES;
    }
    
    NSLog(@"%@ isNumbericString: NO", str);
    return NO;
}
//检验邮箱格式
+ (BOOL) validateUserEmail:(NSString *)str
{
    NSRegularExpression * regularexpression = [[NSRegularExpression alloc]
                                               initWithPattern:@"\\w+([-+.]\\w+)*@\\w+([-.]\\w+)*\\.\\w+([-.]\\w+)*"
                                               options:NSRegularExpressionCaseInsensitive
                                               error:nil];
    NSUInteger numberofMatch = [regularexpression numberOfMatchesInString:str
                                                                  options:NSMatchingReportProgress
                                                                    range:NSMakeRange(0, str.length)];
    
    if(numberofMatch > 0)
    {
        NSLog(@"%@ isNumbericString: YES", str);
        return YES;
    }
    
    NSLog(@"%@ isNumbericString: NO", str);
    return NO;
}
//校验用户手机号码
+ (BOOL) validateUserPhone:(NSString *)str
{
    NSRegularExpression *regularexpression = [[NSRegularExpression alloc]
                                              initWithPattern:@"^1[3|4|5|7|8][0-9][0-9]{8}$"
                                              options:NSRegularExpressionCaseInsensitive
                                              error:nil];
    
    
    
    NSUInteger numberofMatch = [regularexpression numberOfMatchesInString:str
                                                                  options:NSMatchingReportProgress
                                                                    range:NSMakeRange(0, str.length)];
    
    
    if(numberofMatch > 0)
    {
        return YES;
    }
    
    return NO;
    
    
}
//验证是否是正数
+ (BOOL) validatePositiveNumber:(NSString *)str
{
    NSRegularExpression *regularexpression = [[NSRegularExpression alloc]
                                              initWithPattern:@"^(([1-9]{1}\\d*)|([0]{1}))(\\.(\\d){1,2})?$"
                                              options:NSRegularExpressionCaseInsensitive
                                              error:nil];
    NSUInteger numberofMatch = [regularexpression numberOfMatchesInString:str
                                                                  options:NSMatchingReportProgress
                                                                    range:NSMakeRange(0, str.length)];
    
    if(numberofMatch > 0)
    {
        NSLog(@"%@ isNumbericString: YES", str);
        return YES;
    }
    
    NSLog(@"%@ isNumbericString: NO", str);
    return NO;
}
///^(\d*\.)?\d+$/
+ (BOOL) validateMoney:(NSString *)str{
    NSRegularExpression *regularexpression = [[NSRegularExpression alloc]
                                              initWithPattern:@"^([0-9]*[.])?[0-9]+$"
                                              options:NSRegularExpressionCaseInsensitive
                                              error:nil];
    
    
    
    NSUInteger numberofMatch = [regularexpression numberOfMatchesInString:str
                                                                  options:NSMatchingReportProgress
                                                                    range:NSMakeRange(0, str.length)];
    
    if(numberofMatch > 0)
    {
        return YES;
    }
    
    return NO;
}
@end