[转]使用NSScanner解析分段字符串数据

#import <Cocoa/Cocoa.h>
#import <Foundation/Foundation.h>
#import <Foundation/NSObject.h>
#import <Foundation/NSString.h>
#import <Foundation/NSFileManager.h>
#import <Foundation/NSAutoreleasePool.h>
#import <Foundation/NSDictionary.h>

int main (int argc, const char * argv[]) {

　　 NSAutoreleasePool * pool = [[NSAutoreleasePool alloc] init];

　　 // Set up for reading testData
　　 NSString *testData = @"Los Angeles;8.25;0.580561574;1,Tokyo;1.9;0.643872234;1;Honolulu,0;0;0;Toronto;7.9;5.3322;3;";
　　 // Parse CSV with NSScanner
　　 NSScanner *myScanner = [NSScanner scannerWithString:testData];

　　 NSString    *location;
　　 float        theRevenue;
　　 float        thePercent;
　　 int            theRank;

　　 // Set up data delimiter using semicolon

　　 NSCharacterSet *CharacterSet;
　　 CharacterSet = [NSCharacterSet characterSetWithCharactersInString:@";,"];

　　 // Double check scanner string
　　 NSLog (@"Scanner string\n");
　　 NSLog (@"%@",[myScanner string]);

　　 // scanner loop start
　　 while ([myScanner isAtEnd] == NO) {

　　　　  if ( [myScanner scanUpToCharactersFromSet:CharacterSet intoString:&location] ) {
　　 　　 　　 NSLog (@"%@",location);
　　 　　 }        

　　 // Skipping the ; and ,delimiter
　　 if([myScanner scanString:@";" intoString:NULL] || [myScanner scanString:@"," intoString:NULL]);
　　 // Read Revenue data up to ; delimiter and skipping
　　 if([myScanner scanFloat:&theRevenue])
　　 　　 NSLog(@"%lf",theRevenue);
　　 if([myScanner scanString:@";" intoString:NULL] || [myScanner scanString:@"," intoString:NULL]);

　　 // Read Percentage data up to ; delimiter and skipping
　　 if([myScanner scanFloat:&thePercent])
　　　　  NSLog(@"%lf",thePercent);
　　 if([myScanner scanString:@";" intoString:NULL] || [myScanner scanString:@"," intoString:NULL]);

　　 // Read Ranking data up to ; delimiter and skipping
　　 if([myScanner scanInt:&theRank])
　　　　  NSLog(@"%i",theRank);
　　 if([myScanner scanString:@";" intoString:NULL] || [myScanner scanString:@"," intoString:NULL]);
　　 }    

[pool drain];

return 0;
}  转自:http://hi.baidu.com/colorapple/blog/item/27c2568f6310d7f0503d92ae.html