Question

大家好，我正在尝试在objective-c中验证名字。请注意，名称可以包含空格，只能包含字母。

这里我的代码无效：

NSString *nameRegex = @"^[A-Z][a-z]*[\\s{L}\\s{M}\\s{Nl}][A-Z][a-z]*$";
NSPredicate *nameTest = [NSPredicate predicateWithFormat:@"SELF MATCHES %@", nameRegex];
BOOL isValid = [nameTest evaluateWithObject:name];
return isValid;

Answer 1

我明白了：

NSString *nameRegex = @"[a-zA-z]+([ '-][a-zA-Z]+)*$";
NSPredicate *nameTest = [NSPredicate predicateWithFormat:@"SELF MATCHES %@", nameRegex];
BOOL isValid = [nameTest evaluateWithObject:name];
return isValid;

Answer 2

这种方法对我有用：

-(BOOL)validate:(NSString *)string
{
    NSError *error = NULL;
    NSRegularExpression *regex = [NSRegularExpression regularExpressionWithPattern:@"[a-zA-Z ]" options:0 error:&error];    
    NSUInteger numberOfMatches = [regex numberOfMatchesInString:string options:0 range:NSMakeRange(0, [string length])];        
    return numberOfMatches == string.length;
}

Answer 3

BOOL check=NO;
for(int i=0;i<[txt.text length];i++)
{
if([txt.text characterAtIndex:i]<=64 && [txt.text characterAtIndex:i]>=33)
{
    check=YES;

}else if([txt.text characterAtIndex:i]<=122 && [txt.text characterAtIndex:i]>=65)
{
    if([txt.text characterAtIndex:i]<=96 && [txt.text characterAtIndex:i]>=91)
    {
        check=YES;

    }

}
}
if(check==YES)
{
    [self alert:@"Name Contain spetial character"];
    return NO;

}else
{
    [self alert:@"Name Inserted succesfully"];

    return YES;
}
return  NO;

Answer 4

我正在使用以下代码

NSString *yourstring = @"hello";

NSString *Regex = @"[a-zA-Z][a-zA-Z ]*";
NSPredicate *TestResult = [NSPredicate predicateWithFormat:@"SELF MATCHES %@",Regex];

if ([TestResult evaluateWithObject:yourstring] == true)
{

    // validation passed
}
else
{
// invalid name
}

Answer 5

要验证全名，代码是这样的：

rm -rf ~/.cargo/registry

Answer 6

 func nameValidation() -> Bool {
    let RegEx = "[a-zA-Z ]{2,15}"
    let name = NSPredicate(format:"SELF MATCHES %@", RegEx)
    return name.evaluate(with: self)
}

如何验证名字目标c？

6 个答案: