Cocoa 使用NSScanner解析字符串
要分析的两行字符串是:Cocoa 使用NSScanner解析字符串,cocoa,nsstring,string-parsing,nsscanner,Cocoa,Nsstring,String Parsing,Nsscanner,要分析的两行字符串是: 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)
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)
要获取这些字符串,请执行以下操作:
(从第1行开始)
- VGA兼容控制器
- 英特尔公司82945G/GZ集成图形控制器
- [8086:2772]
- 显示控制器
- 英特尔公司82945G/GZ集成图形控制器
- [8086:2776]
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。我甚至无法从文件中理解扫描仪。有人能发布工作代码吗?快速代码片段:
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]