NSScannerまたはcomponentsSeperatedByStringの使用方法

Question

{"赤"、 "青"、 "緑"、 "黄"}が文字列として返されました。これを処理して配列に追加するには？

#import <Foundation/Foundation.h> 

int main (int argc, const char * argv[]) { 
    NSAutoreleasePool * pool = [[NSAutoreleasePool alloc] init]; 
    NSString* sampleString = @"{\"Red\",\"Blue\",\"Green\",\"Yellow\"}"; 
    NSArray* components = [sampleString componentsSeperatedByString:@"\"{"]; 

    [pool drain]; 
    return 0; 
} 

更新されたコード＃

NSString* sampleString = @"{\"Red\",\"Blue\",\"Green\",\"Yellow\"}"; 

NSMutableArray *rows = [NSMutableArray array]; 

// Get newline character set 
NSMutableCharacterSet *removeCharacterSet = (id)[NSMutableCharacterSet characterSetWithCharactersInString:@"{(,}"]; 
[removeCharacterSet formIntersectionWithCharacterSet:[[NSCharacterSet whitespaceCharacterSet] invertedSet]]; 

// Characters that are important to the parser 
NSMutableCharacterSet *importantCharactersSet = (id)[NSMutableCharacterSet characterSetWithCharactersInString:@"\""]; 
[importantCharactersSet formUnionWithCharacterSet:removeCharacterSet]; 

// Create scanner, and scan string 
NSScanner *scanner = [NSScanner scannerWithString:sampleString]; 
[scanner setCharactersToBeSkipped:nil]; 
while (![scanner isAtEnd]) 
{   
    BOOL insideQuotes = NO; 
    BOOL finishedRow = NO; 
    NSMutableArray *columns = [NSMutableArray arrayWithCapacity:10]; 
    NSMutableString *currentColumn = [NSMutableString string]; 
    while (!finishedRow) 
    { 
     NSString *tempString; 
     if ([scanner scanUpToCharactersFromSet:importantCharactersSet intoString:&tempString]) { 
      [currentColumn appendString:tempString]; 
     } 

     if ([scanner isAtEnd]) { 
      if (![currentColumn isEqualToString:@""]) [columns addObject:currentColumn]; 
      finishedRow = YES; 
     } 
     else if ([scanner scanCharactersFromSet:removeCharacterSet intoString:&tempString]) { 
      if (insideQuotes) { 
       // Add line break to column text 
       [currentColumn appendString:tempString]; 
      } 
      else { 
       // End of row 
       if (![currentColumn isEqualToString:@""]) [columns addObject:currentColumn]; 
       finishedRow = YES; 
      } 
     } 
     else if ([scanner scanString:@"\"" intoString:NULL]) { 
      if (insideQuotes && [scanner scanString:@"\"" intoString:NULL]) { 
       // Replace double quotes with a single quote in the column string. 
       [currentColumn appendString:@"\""]; 
      } 
      else { 
       // Start or end of a quoted string. 
       insideQuotes = !insideQuotes; 
      } 
     } 
     else if ([scanner scanString:@"," intoString:NULL]) { 
      if (insideQuotes) { 
       [currentColumn appendString:@","]; 
      } 
      else { 
       // This is a column separating comma 
       [columns addObject:currentColumn]; 
       currentColumn = [NSMutableString string]; 
       [scanner scanCharactersFromSet:[NSCharacterSet whitespaceCharacterSet] intoString:NULL]; 
      } 
     } 
    } 
    if ([columns count] > 0) [rows addObject:columns]; 
} 
NSLog(@"This String:%@",[rows objectAtIndex:0]); 

私はhttp://www.macresearch.org/cocoa-scientists-part-xxvi-parsing-csv-dataからコードを得ました。今度の出力はThis String :(赤）、 "（" "）"を取り除く方法は？あなたは中括弧のために括弧を置換した場合、すべてのアレイを作成するために必要だろうと

NSScanner *scanner = [NSScanner scannerWithString:@"{\"Red\",\"Blue\",\"Green\",\"Yellow\"}"]; 
NSMutableCharacterSet *charactersToSkip = [NSMutableCharacterSet punctuationCharacterSet]; 
[scanner setCharactersToBeSkipped:charactersToSkip]; 
NSMutableArray *substrings = [NSMutableArray array]; 
NSString *substring = @""; 
while (![scanner isAtEnd]) { 
    [scanner scanUpToCharactersFromSet:charactersToSkip intoString:&substring]; 
    [scanner scanCharactersFromSet:charactersToSkip intoString:NULL]; 
    [substrings addObject:substring]; 
} 

NSLog(@"%@", substrings); 

注：

Answer 1

は、ここであなたがNSScannerのインスタンスを使用して提供してきましたサンプルをスキャンする必要があるすべてです

NSString *sampleString = @"(\"Red\",\"Blue\",\"Green\",\"Yellow\")"; 
NSArray *strings = [sampleString propertyList]; 
NSLog(@"%@", strings); 

...しかし、私はあなたが達成する必要があることを本当に明確ではありません。