NSString NSShiftJISStringEncoding example ios

String Encodings - NSShiftJISStringEncoding

The following constants are provided by NSString as possible string encodings.

enum {
   NSASCIIStringEncoding = 1,
   NSNEXTSTEPStringEncoding = 2,
   NSJapaneseEUCStringEncoding = 3,
   NSUTF8StringEncoding = 4,
   NSISOLatin1StringEncoding = 5,
   NSSymbolStringEncoding = 6,
   NSNonLossyASCIIStringEncoding = 7,
   NSShiftJISStringEncoding = 8,
   NSISOLatin2StringEncoding = 9,
   NSUnicodeStringEncoding = 10,
   NSWindowsCP1251StringEncoding = 11,
   NSWindowsCP1252StringEncoding = 12,
   NSWindowsCP1253StringEncoding = 13,
   NSWindowsCP1254StringEncoding = 14,
   NSWindowsCP1250StringEncoding = 15,
   NSISO2022JPStringEncoding = 21,
   NSMacOSRomanStringEncoding = 30,
   NSUTF16StringEncoding = NSUnicodeStringEncoding,
   NSUTF16BigEndianStringEncoding = 0x90000100,
   NSUTF16LittleEndianStringEncoding = 0x94000100,
   NSUTF32StringEncoding = 0x8c000100,
   NSUTF32BigEndianStringEncoding = 0x98000100,
   NSUTF32LittleEndianStringEncoding = 0x9c000100,
   NSProprietaryStringEncoding = 65536
};

Constants

NSShiftJISStringEncoding

8-bit Shift-JIS encoding for Japanese text.

Discussion of [NSString NSShiftJISStringEncoding]

These values represent the various character encodings supported by the NSStringclasses. This is an incomplete list. Additional encodings are defined in String Programming Guide for Core Foundation (see CFStringEncodingExt.h); these encodings can be used with NSString by first passing the Core Foundation encoding to the CFStringConvertEncodingToNSStringEncoding function.

Example of [NSString NSShiftJISStringEncoding]

NSString* barcode = symbol.data; 

if ([barcode canBeConvertedToEncoding:NSShiftJISStringEncoding]) { 
    barcode = [NSString stringWithCString:[barcode cStringUsingEncoding: NSShiftJISStringEncoding] encoding:NSUTF8StringEncoding]; 
}

Example of [NSString NSShiftJISStringEncoding]

- (void)dataArrived:(NSData*)data
{
    [_mutableData appendData:data];
    NSUInteger length = [_mutableData length];
    NSString *string = [[[NSString alloc] initWithData:_mutableData
                                              encoding:NSShiftJISStringEncoding] autorelease];

    if ( ! string && length )
    {
        // try without the last byte
        --length;
        string = [[[NSString alloc] initWithBytes:data.bytes
                                           length:length
                                         encoding:NSShiftJISStringEncoding] autorelease];
    }

    if ( ! string && length )
    {
        // we have a problem: the data are invalid
        return;
    }

    // remove processed bytes
    [_mutableData replaceBytesInRange:NSMakeRange(0, length) withBytes:NULL length:0];

    // now, we can append string
}

Example of [NSString NSShiftJISStringEncoding]

+ (NSString *)encodedStringWithContentsOfURL:(NSURL *)url
{
    // Get the web page HTML
    NSData *data = [NSData dataWithContentsOfURL:url];

    // response
    int enc_arr[] = {
        NSUTF8StringEncoding,           // UTF-8
        NSShiftJISStringEncoding,       // Shift_JIS
        NSJapaneseEUCStringEncoding,    // EUC-JP
        NSISO2022JPStringEncoding,      // JIS
        NSUnicodeStringEncoding,        // Unicode
        NSASCIIStringEncoding           // ASCII
    };
    NSString *data_str = nil;
    int max = sizeof(enc_arr) / sizeof(enc_arr[0]);
    for (int i=0; i<max; i++) {
        data_str = [
                    [NSString alloc]
                    initWithData : data
                    encoding : enc_arr[i]
                    ];
        if (data_str!=nil) {
            break;
        }
    }
    return data_str;    
}