iOS正则表达式-优快云博客

原文地址：iOS正则表达式 作者：666799

NSRegularExpression是iOS系统在4.0后自带的匹配正则表达式，一般会和NSTextCheckingResult配套使用。

代码：

//匹配输入的联系方式是否为QQ号码或者电子邮箱

NSString *patternQQ = @"^[1-9](\d){4,9}$";
NSString *patternEmail = @"\b([a-zA-Z0-9%_.+\-]+)@([a-zA-Z0-9.\-]+?\.[a-zA-Z]{2,6})\b";
NSError *error = NULL;
//定义正则表达式
NSRegularExpression *regexQQ = [NSRegularExpression regularExpressionWithPat tern:patternQQ options:0 error:&error];
NSRegularExpression *regexEmail = [NSRegularExpression regularExpressionWithPat tern:patternEmail options:0 error:&error];
//使用正则表达式匹配字符
NSTextCheckingResult *isMatchQQ = [regexQQ firstMatchInString:textField.text
options:0
range:NSMakeRange(0, [textField.text length])];
NSTextCheckingResult *isMatchEmail = [regexEmail firstMatchInString:textField.text
options:0
range:NSMakeRange(0, [textField.text length])];

if (isMatchQQ || isMatchEmail) {
//doing thing
}

代码放在这里，有需要直接拿去。自己也做备份，以后使用方便。Java代码
//校验用户名
+ (BOOL) validateUserName : (NSString *) str
{
    NSString *patternStr = [NSString stringWithFormat:@"^.{0,4}$|.{21,}|^[^A-Za-z0-9u4E00-u9FA5]|[^wu4E00-u9FA5.-]|([_.-])1"];
    NSRegularExpression *regularexpression = [[NSRegularExpression alloc]
                                              initWithPattern:patternStr
                                              options:NSRegularExpressionCaseInsensitive
                                              error:nil];
    NSUInteger numberofMatch = [regularexpression numberOfMatchesInString:str
                                                                  options:NSMatchingReportProgress
                                                                    range:NSMakeRange(0, str.length)];

    [regularexpression release];

    if(numberofMatch > 0)
    {
        return YES;
    }
    return NO;
}

//校验用户密码
+ (BOOL) validateUserPasswd : (NSString *) str
{

    NSRegularExpression *regularexpression = [[NSRegularExpression alloc]
                                              initWithPattern:@"^[a-zA-Z0-9]{6,16}$"
                                              options:NSRegularExpressionCaseInsensitive
                                              error:nil];
    NSUInteger numberofMatch = [regularexpression numberOfMatchesInString:str
                                                                  options:NSMatchingReportProgress
                                                                    range:NSMakeRange(0, str.length)];

    [regularexpression release];

    if(numberofMatch > 0)
    {
        NSLog(@"%@ isNumbericString: YES", str);
        return YES;
    }

    NSLog(@"%@ isNumbericString: NO", str);
    return NO;
}

//校验用户生日
+ (BOOL) validateUserBornDate : (NSString *) str
{

    NSString *patternStr = @"^((((1[6-9]|[2-9]d)d{2})-(0?[13578]|1[02])-(0?[1-9]|[12]d|3[01]))|(((1[6-9]|[2-9]d)d{2})-(0?[13456789]|1[012])-(0?[1-9]|[12]d|30))|(((1[6-9]|[2-9]d)d{2})-0?2-(0?[1-9]|1d|2[0-8]))|(((1[6-9]|[2-9]d)(0[48]|[2468][048]|[13579][26])|((16|[2468][048]|[3579][26])00))-0?2-29-))$";
    NSRegularExpression *regularexpression = [[NSRegularExpression alloc]
                                              initWithPattern:patternStr
                                              options:NSRegularExpressionCaseInsensitive
                                              error:nil];
    NSUInteger numberofMatch = [regularexpression numberOfMatchesInString:str
                                                                  options:NSMatchingReportProgress
                                                                    range:NSMakeRange(0, str.length)];

    [regularexpression release];

    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:@"((d{11})|^((d{7,8})|(d{4}|d{3})-(d{7,8})|(d{4}|d{3})-(d{7,8})-(d{4}|d{3}|d{2}|d{1})|(d{7,8})-(d{4}|d{3}|d{2}|d{1}))$)"
                                              options:NSRegularExpressionCaseInsensitive
                                              error:nil];
    NSUInteger numberofMatch = [regularexpression numberOfMatchesInString:str
                                                                  options:NSMatchingReportProgress
                                                                    range:NSMakeRange(0, str.length)];

    [regularexpression release];

    if(numberofMatch > 0)
    {
        NSLog(@"%@ isNumbericString: YES", str);
        return YES;
    }

    NSLog(@"%@ isNumbericString: NO", str);
    return NO;
}

//校验用户邮箱
+ (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)];

    [regularexpression release];

    if(numberofMatch > 0)
    {
        NSLog(@"%@ isNumbericString: YES", str);
        return YES;
    }

    NSLog(@"%@ isNumbericString: NO", str);
    return NO;
}