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#include <stdlib.h>
#include <string.h>
#import "OFString+URLEncoding.h"
#import "OFCharacterSet.h"
#import "OFInvalidFormatException.h"
#import "OFInvalidEncodingException.h"
#import "OFOutOfMemoryException.h"
/* Reference for static linking */
int _OFString_URLEncoding_reference;
@implementation OFString (URLEncoding)
- (OFString *)stringByURLEncodingWithAllowedCharacters:
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of_unichar_t c = characters[i];
if (characterIsMember(allowedCharacters,
@selector(characterIsMember:), c))
[ret appendCharacters: &c
length: 1];
else {
char buffer[4];
size_t bufferLen;
if ((bufferLen = of_string_utf8_encode(c, buffer)) == 0)
@throw [OFInvalidEncodingException exception];
for (size_t j = 0; j < bufferLen; j++) {
unsigned char byte = buffer[j];
unsigned char high = c >> 4;
unsigned char low = c & 0x0F;
of_unichar_t escaped[3];
unsigned char high = byte >> 4;
unsigned char low = byte & 0x0F;
char escaped[3];
escaped[0] = '%';
escaped[1] = (high > 9 ? high - 10 + 'A' : high + '0');
escaped[2] = (low > 9 ? low - 10 + 'A' : low + '0');
escaped[0] = '%';
escaped[1] =
(high > 9 ? high - 10 + 'A' : high + '0');
escaped[2] =
(low > 9 ? low - 10 + 'A' : low + '0');
[ret appendCharacters: escaped
length: 3];
[ret appendUTF8String: escaped
length: 3];
}
}
}
objc_autoreleasePoolPop(pool);
return ret;
}
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