iOS正則表示式之區分大小寫中英文,判斷輸入框型別
在開發過程中，有時需要對使用者輸入的型別做判斷，最常見是在註冊頁面即使用者名稱和密碼，直接上程式碼
#pragma - mark 只能為中文
-(BOOL)onlyInputChineseCharacters:(NSString*)string{
NSString *inputString =@"[\u4e00-\u9fa5]+";
NSPredicate *predicate = [NSPredicatepredicateWithFormat:@"SELF MATCHES %@",inputString];
BOOL inputString = [predicateevaluateWithObject
returninputString;
}
#pragma - mark 只能為數字
- (BOOL)onlyInputTheNumber:(NSString*)string{
NSString *numString =@"[0-9]*";
NSPredicate *predicate = [NSPredicatepredicateWithFormat:@"SELF MATCHES %@",numString];
BOOL inputString = [predicateevaluateWithObject:string];
returninputString;
}
#pragma - mark 只能為小寫
- (BOOL)onlyInputLowercaseLetter:(NSString*)string{
NSString *regex =@"[a-z]*";
NSPredicate *predicate = [NSPredicatepredicateWithFormat:@"SELF MATCHES %@",regex];
BOOL inputString = [predicateevaluateWithObject:string];
returninputString;
}
#pragma - mark 只能為大寫
- (BOOL)onlyInputACapital:(NSString
NSString *regex =@"[A-Z]*";
NSPredicate *predicate = [NSPredicatepredicateWithFormat:@"SELF MATCHES %@",regex];
BOOL inputString = [predicateevaluateWithObject:string];
returninputString;
}
#pragma - mark 允許大小寫
- (BOOL)InputCapitalAndLowercaseLetter:(NSString*)string{
NSString *regex =@"[a-zA-Z]*";
NSPredicate *predicate = [NSPredicatepredicateWithFormat:@"SELF MATCHES %@",regex];
BOOL inputString = [predicateevaluateWithObject:string];
return inputString;
}
#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 = [NSPredicatepredicateWithFormat:@"SELF MATCHES %@",regex];
BOOL inputString = [predicateevaluateWithObject:string];
return inputString;
}
#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}+$";
NSPredicate *userNamePredicate = [NSPredicatepredicateWithFormat:@"SELF MATCHES %@",userNameRegex];
BOOL inputString = [userNamePredicateevaluateWithObject:name];
return inputString;
}
#pragma - mark 允許漢字或數字(不限字數)
- (BOOL)inputChineseOrNumbers:(NSString*)string{
NSString *regex =@"[\u4e00-\u9fa5]+[0-9]*";
NSPredicate *predicate = [NSPredicatepredicateWithFormat:@"SELF MATCHES %@",regex];
BOOL inputString = [predicateevaluateWithObject:string];
return inputString;
}
#pragma - mark 允許漢字或數字(限字數)
- (BOOL)inputChineseOrNumbersLimit:(NSString*)string{
NSString *regex =@"[\u4e00-\u9fa5][0-9]{6,20}+$";
NSPredicate *predicate = [NSPredicatepredicateWithFormat:@"SELF MATCHES %@",regex];
BOOL inputString = [predicateevaluateWithObject:string];
return inputString;
}
#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 = [NSPredicatepredicateWithFormat:@"SELF MATCHES %@",regex];
BOOL inputString = [predicateevaluateWithObject:string];
return inputString;
}
#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 = [NSPredicatepredicateWithFormat:@"SELF MATCHES %@",regex];
BOOL inputString = [predicateevaluateWithObject:string];
return inputString;
}