代码总结：IOS正则表达式（项目中用到的）

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#import <Foundation/Foundation.h>/** *@brief用户输入内容检查 */@interface NSString (CheckValid)/** *@brief检查邮箱名是否合法 * *@return是否合法 */-(BOOL) isValidEmail;/** *@brief检查用户名是否合法 * *@return是否合法 */-(BOOL) isValidUserName;/** *@brief检查管理员账号是否合法 * *@return是否合法 */-(BOOL) isValidAdminName;/** *@brief检查其他名称是否合法 * *@return是否合法 */-(BOOL) isValidOtherName;/** *@brief检查手机号是否合法 * *@return是否合法 */-(BOOL) isValidMobileNumber;/** *@brief检查座机号是否合法 * *@return是否合法 */-(BOOL )isValidPhoneNumber;/** *@brief检查用户账号是否合法 * *@return是否合法 */-(BOOL) isValidAccountName;/** *@brief检查密码是否合法 * *@return是否合法 */-(BOOL) isValidPassword;/** *@brief检查外链设置密码是否合法 // add by qjl 2014-01-21 * *@return是否合法 */-(BOOL) isValidlinkSetPassword;/** *@brief检查是否为纯数字 * *@return是否合法 */-(BOOL) isValidNumber;/** *@brief检查文件名是否有效 * *@return是否有效 */- (BOOL)isValidFileName;@end

#import "NSString+CheckValid.h"@implementation NSString (CheckValid)-(BOOL) isValidEmail{    NSString *emailRegex = @"[A-Z0-9a-z._%+-]+@[A-Za-z0-9.-]+\\.[A-Za-z]{2,4}";    NSPredicate *emailTest = [NSPredicate predicateWithFormat:@"SELF MATCHES %@", emailRegex];    return [emailTest evaluateWithObject:self];}-(BOOL) isValidUserName{    NSString *nameRegex = @"^[A-Za-z0-9\\u4e00-\\u9fa5-]{2,20}$";    NSPredicate *nameTest = [NSPredicate predicateWithFormat:@"SELF MATCHES %@", nameRegex];    return [nameTest evaluateWithObject:self];}-(BOOL) isValidAdminName{    NSString *adminNameRegex = @"^[A-Za-z0-9\\u4e00-\\u9fa5-]{2,20}$";    NSPredicate *adminNameTest = [NSPredicate predicateWithFormat:@"SELF MATCHES %@", adminNameRegex];    return [adminNameTest evaluateWithObject:self];}-(BOOL) isValidOtherName{    NSString *otherNameRegex = @"^[A-Za-z0-9\\u4e00-\\u9fa5-]{2,20}$"; //@"^[^ ][\\s\\S]*[^ ]{1,49}$";    NSPredicate *otherNameTest = [NSPredicate predicateWithFormat:@"SELF MATCHES %@", otherNameRegex];    return [otherNameTest evaluateWithObject:self];}-(BOOL) isValidAccountName{    NSString *accountNameRegex = @"^[a-zA-Z][a-zA-Z0-9_]{2,20}$";    NSPredicate *accountNameTest = [NSPredicate predicateWithFormat:@"SELF MATCHES %@", accountNameRegex];    return [accountNameTest evaluateWithObject:self];}-(BOOL) isValidPassword{    //NSString *passwordRegex = @"^[a-zA-Z0-9]{6,30}$";  //modified by qjl  15/1/2014 [只能使用英文、数字或两者组合，不能使用特殊符号；长度6-30位]    NSString *passwordRegex = @"^[a-zA-Z0-9-`=\\\\\\[\\];',./~!@#$%^&*()_+|{}:\"<>?]{6,20}$"; // 支持特殊字符，modified by LJ  25/11/2013    NSPredicate *passwordTest = [NSPredicate predicateWithFormat:@"SELF MATCHES %@", passwordRegex];    return [passwordTest evaluateWithObject:self];}-(BOOL) isValidlinkSetPassword{    NSString *passwordRegex = @"^[a-zA-Z0-9-`=\\\\\\[\\];',./~!@#$%^&*()_+|{}:\"<>?]{4,6}$";    NSPredicate *passwordTest = [NSPredicate predicateWithFormat:@"SELF MATCHES %@", passwordRegex];    return [passwordTest evaluateWithObject:self];}-(BOOL )isValidMobileNumber{    /**     * 手机号码     * 移动：134[0-8],135,136,137,138,139,150,151,157,158,159,182,183,187,188     * 联通：130,131,132,152,155,156,185,186     * 电信：133,1349,153,180,189     */    NSString* MOBILE = @"^1(3[0-9]|5[0-35-9]|8[0-9])\\d{8}$";    /**     * 中国移动：China Mobile     * 134[0-8],135,136,137,138,139,150,151,157,158,159,182,187,188     */    NSString* CM = @"^1(34[0-8]|(3[5-9]|5[017-9]|8[278])\\d)\\d{7}$";    /**     * 中国联通：China Unicom     * 130,131,132,152,155,156,185,186     */    NSString* CU= @"^1(3[0-2]|5[256]|8[56])\\d{8}$";    /**     * 中国电信：China Telecom     * 133,1349,153,180,189     */    NSString* CT = @"^1((33|53|8[09])[0-9]|349)\\d{7}$";    /**     * 大陆地区固话及小灵通     * 区号：010,020,021,022,023,024,025,027,028,029 ...     * 号码：七位或八位     */        //只判断位数 7到12位    // NSString * PHS = @"^[0-9]{6,20}$";        NSPredicate*regextestmobile = [NSPredicate predicateWithFormat:@"SELF MATCHES %@",MOBILE];    NSPredicate*regextestcm = [NSPredicate predicateWithFormat:@"SELF MATCHES %@",CM];    NSPredicate*regextestcu = [NSPredicate predicateWithFormat:@"SELF MATCHES %@",CU];    NSPredicate*regextestct = [NSPredicate predicateWithFormat:@"SELF MATCHES %@",CT];    //NSPredicate*regextestphs = [NSPredicate predicateWithFormat:@"SELF MATCHES %@",PHS];        if(([regextestmobile evaluateWithObject:self] == YES)       || ([regextestcm evaluateWithObject:self] == YES)       || ([regextestct evaluateWithObject:self] == YES)       || ([regextestcu evaluateWithObject:self] == YES))    {        return YES;    }    else    {        return NO;    }}-(BOOL )isValidPhoneNumber{    //只判断位数 4到12位    NSString * PHS = @"^[0-9]{4,12}$";        NSPredicate *regextestphone =[NSPredicate predicateWithFormat:@"SELF MATCHES %@",PHS];    if([regextestphone evaluateWithObject:self] == YES)       return YES;    else        return NO;}- (BOOL)isValidNumber{    NSString *numberRegex = @"^[0-9]+$";    NSPredicate *numberTest = [NSPredicate predicateWithFormat:@"SELF MATCHES %@", numberRegex];    return [numberTest evaluateWithObject:self];}- (BOOL)isValidFileName{    //判断文件名是否合法    NSString *fileNameRegex = @"^[a-zA-Z0-9\\u4e00-\\u9fa5-`=\\[\\];',.~!@#$%^&()_+{}\\s*]+$";    NSPredicate *fileNameTest = [NSPredicate predicateWithFormat:@"SELF MATCHES %@", fileNameRegex];    return [fileNameTest evaluateWithObject:self];}@end

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