iOS 使用正則判斷輸入型別

joker_king發表於2018-12-19
iOS型別

pragma - mark 只能為中文

-(BOOL)onlyInputChineseCharacters:(NSString*)string{
    NSString *inputString = @"[\u4e00-\u9fa5]+";
    NSPredicate *predicate = [NSPredicate predicateWithFormat:@"SELF MATCHES %@",inputString];
    BOOL  inputString = [predicate evaluateWithObject:string];
    return inputString;

}
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pragma - mark 只能為數字

- (BOOL)onlyInputTheNumber:(NSString*)string{
    NSString *numString =@"[0-9]*";
    NSPredicate *predicate = [NSPredicate predicateWithFormat:@"SELF MATCHES %@",numString];
    BOOL  inputString = [predicate evaluateWithObject:string];
    return inputString;
}
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pragma - mark 只能為小寫

- (BOOL)onlyInputLowercaseLetter:(NSString*)string{
    NSString *regex =@"[a-z]*";
    NSPredicate *predicate = [NSPredicate predicateWithFormat:@"SELF MATCHES %@",regex];
    BOOL  inputString = [predicate evaluateWithObject:string];
    return inputString;
}
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pragma - mark 只能為大寫

- (BOOL)onlyInputACapital:(NSString*)string{
    NSString *regex =@"[A-Z]*";
    NSPredicate *predicate = [NSPredicate predicateWithFormat:@"SELF MATCHES %@",regex];
    BOOL  inputString = [predicate evaluateWithObject:string];
    return inputString;
}
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pragma - mark 允許大小寫

- (BOOL)InputCapitalAndLowercaseLetter:(NSString*)string{
    NSString *regex =@"[a-zA-Z]*";
    NSPredicate *predicate = [NSPredicate predicateWithFormat:@"SELF MATCHES %@",regex];
    BOOL  inputString = [predicate evaluateWithObject:string];
    return inputString;
}
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pragma - mark 允許含大小寫或數字(不限字數)

- (BOOL)inputLettersOrNumbers:(NSString*)string{
    NSString *regex =@"[a-zA-Z0-9]*";
    NSPredicate *predicate = [NSPredicate predicateWithFormat:@"SELF MATCHES %@",regex];
    BOOL  inputString = [predicate evaluateWithObject:string];
    return inputString;
}
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pragma - mark 允許含大小寫或數字(限字數)

-(BOOL)inputNumberOrLetters:(NSString*)name {
    NSString *userNameRegex = @"^[A-Za-z0-9]{6,20}+$";
    NSPredicate *userNamePredicate = [NSPredicate predicateWithFormat:@"SELF MATCHES %@",userNameRegex];
    BOOL  inputString = [userNamePredicate evaluateWithObject:name];
    return inputString;
}
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pragma - mark 允許漢字或數字(不限字數)

- (BOOL)inputChineseOrNumbers:(NSString*)string{
    NSString *regex =@"[\u4e00-\u9fa5]+[0-9]*";
    NSPredicate *predicate = [NSPredicate predicateWithFormat:@"SELF MATCHES %@",regex];
    BOOL  inputString = [predicate evaluateWithObject:string];
    return inputString;
}
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pragma - mark 允許漢字或數字(限字數)

- (BOOL)inputChineseOrNumbersLimit:(NSString*)string{
    NSString *regex =@"[\u4e00-\u9fa5][0-9]{6,20}+$";
    NSPredicate *predicate = [NSPredicate predicateWithFormat:@"SELF MATCHES %@",regex];
    BOOL  inputString = [predicate evaluateWithObject:string];
    return inputString;
}
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pragma - mark 允許漢字，大小寫或數字(不限字數)

- (BOOL)inputChineseOrLettersAndNumbersNum:(NSString*)string{
    NSString *regex =@"[\u4e00-\u9fa5]+[A-Za-z0-9]*";
    NSPredicate *predicate = [NSPredicate predicateWithFormat:@"SELF MATCHES %@",regex];
    BOOL  inputString = [predicate evaluateWithObject:string];
    return inputString;
}
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pragma - mark 允許漢字，大小寫或數字(限字數)

- (BOOL)inputChineseOrLettersNumberslimit:(NSString*)string{
    NSString *regex =@"[\u4e00-\u9fa5]+[A-Za-z0-9]{6,20}+$";
    NSPredicate *predicate = [NSPredicate predicateWithFormat:@"SELF MATCHES %@",regex];
    BOOL  inputString = [predicate evaluateWithObject:string];
    return inputString;
}
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