cocoa - 使用 NSScanner 解析字符串

Question

要解析的两行字符串是：

00:02.0 VGA compatible controller [0300]: Intel Corporation 82945G/GZ Integrated Graphics Controller [8086:2772] (rev 02)
00:02.1 Display controller [0380]: Intel Corporation 82945G/GZ Integrated Graphics Controller [8086:2776] (rev 02)

取出这些字符串：

（从第一行开始）

• VGA兼容控制器
• Intel Corporation 82945G/GZ 集成图形控制器
• [8086:2772]

（从第 2 行开始）

• 显示控制器
• Intel Corporation 82945G/GZ 集成图形控制器
• [8086:2776]

现在我的起始代码是：

NSScanner *scn = [NSScanner scannerWithString:strtoparse];
NSString *devtype;      
while ([scn isAtEnd] == NO)
    {
       if( [scn scanUpToCharactersFromSet:[NSCharacterSet whitespaceCharacterSet] intoString:NULL] &&
        [scn scanUpToString:@"[" intoString:&devtype]);
    }

这不起作用。我什至无法理解文档中的扫描仪。那么有人可以发布工作代码吗？

Answer 1

快速片段：

NSString *theString = @"00:02.0 VGA compatible controller [0300]: Intel Corporation 82945G/GZ Integrated Graphics Controller [8086:2772] (rev 02)\n00:02.1 Display controller [0380]: Intel Corporation 82945G/GZ Integrated Graphics Controller [8086:2776] (rev 02)";

NSScanner *theScanner = [NSScanner scannerWithString:theString];

NSCharacterSet *space = [NSCharacterSet characterSetWithCharactersInString:@" "];
NSCharacterSet *bracket = [NSCharacterSet characterSetWithCharactersInString:@"["];
NSCharacterSet *linebreak = [NSCharacterSet newlineCharacterSet];

NSString *type;
NSString *name;
NSString *number;

while (![theScanner isAtEnd]) 
{
    [theScanner scanUpToCharactersFromSet:space intoString:nil] ;
    [theScanner scanUpToCharactersFromSet:bracket intoString:&type]; 
    [theScanner scanUpToCharactersFromSet:space intoString:nil] ;
    [theScanner scanUpToCharactersFromSet:bracket intoString:&name]; 
    [theScanner scanUpToCharactersFromSet:space intoString:&number]; 
    [theScanner scanUpToCharactersFromSet:linebreak intoString:nil] ;

    NSLog(type);
    NSLog(name);
    NSLog(number);
}

输出：

VGA compatible controller 
Intel Corporation 82945G/GZ Integrated Graphics Controller 
[8086:2772]
Display controller 
Intel Corporation 82945G/GZ Integrated Graphics Controller 
[8086:2776]