CFStringEncodingConverterExt.h [plain text]
#ifndef __CFSTRINGENCODINGCONVERETEREXT_H__
#define __CFSTRINGENCODINGCONVERETEREXT_H__ 1
#include <CoreFoundation/CFStringEncodingConverter.h>
#if defined(__cplusplus)
extern "C" {
#endif
#define MAX_DECOMPOSED_LENGTH (10)
enum {
kCFStringEncodingConverterStandard = 0,
kCFStringEncodingConverterCheapEightBit = 1,
kCFStringEncodingConverterStandardEightBit = 2,
kCFStringEncodingConverterCheapMultiByte = 3,
kCFStringEncodingConverterPlatformSpecific = 4 };
typedef UInt32 (*CFStringEncodingToBytesProc)(UInt32 flags, const UniChar *characters, UInt32 numChars, UInt8 *bytes, UInt32 maxByteLen, UInt32 *usedByteLen);
typedef UInt32 (*CFStringEncodingToUnicodeProc)(UInt32 flags, const UInt8 *bytes, UInt32 numBytes, UniChar *characters, UInt32 maxCharLen, UInt32 *usedCharLen);
typedef Boolean (*CFStringEncodingCheapEightBitToBytesProc)(UInt32 flags, UniChar character, UInt8 *byte);
typedef Boolean (*CFStringEncodingCheapEightBitToUnicodeProc)(UInt32 flags, UInt8 byte, UniChar *character);
typedef UInt16 (*CFStringEncodingStandardEightBitToBytesProc)(UInt32 flags, const UniChar *characters, UInt32 numChars, UInt8 *byte);
typedef UInt16 (*CFStringEncodingStandardEightBitToUnicodeProc)(UInt32 flags, UInt8 byte, UniChar *characters);
typedef UInt16 (*CFStringEncodingCheapMultiByteToBytesProc)(UInt32 flags, UniChar character, UInt8 *bytes);
typedef UInt16 (*CFStringEncodingCheapMultiByteToUnicodeProc)(UInt32 flags, const UInt8 *bytes, UInt32 numBytes, UniChar *character);
typedef UInt32 (*CFStringEncodingToBytesLenProc)(UInt32 flags, const UniChar *characters, UInt32 numChars);
typedef UInt32 (*CFStringEncodingToUnicodeLenProc)(UInt32 flags, const UInt8 *bytes, UInt32 numBytes);
typedef UInt32 (*CFStringEncodingToBytesPrecomposeProc)(UInt32 flags, const UniChar *character, UInt32 numChars, UInt8 *bytes, UInt32 maxByteLen, UInt32 *usedByteLen);
typedef Boolean (*CFStringEncodingIsValidCombiningCharacterProc)(UniChar character);
typedef struct {
void *toBytes;
void *toUnicode;
UInt16 maxBytesPerChar;
UInt16 maxDecomposedCharLen;
UInt8 encodingClass;
UInt32 :24;
CFStringEncodingToBytesLenProc toBytesLen;
CFStringEncodingToUnicodeLenProc toUnicodeLen;
CFStringEncodingToBytesFallbackProc toBytesFallback;
CFStringEncodingToUnicodeFallbackProc toUnicodeFallback;
CFStringEncodingToBytesPrecomposeProc toBytesPrecompose;
CFStringEncodingIsValidCombiningCharacterProc isValidCombiningChar;
} CFStringEncodingConverter;
extern const CFStringEncodingConverter *CFStringEncodingGetConverter(UInt32 encoding);
enum {
kCFStringEncodingGetConverterSelector = 0,
kCFStringEncodingIsDecomposableCharacterSelector = 1,
kCFStringEncodingDecomposeCharacterSelector = 2,
kCFStringEncodingIsValidLatin1CombiningCharacterSelector = 3,
kCFStringEncodingPrecomposeLatin1CharacterSelector = 4
};
extern const void *CFStringEncodingGetAddressForSelector(UInt32 selector);
#define BOOTSTRAPFUNC_NAME CFStringEncodingBootstrap
typedef const CFStringEncodingConverter* (*CFStringEncodingBootstrapProc)(UInt32 encoding, const void *getSelector);
extern UInt32 CFStringEncodingGetScriptCodeForEncoding(CFStringEncoding encoding);
extern Boolean CFStringEncodingIsValidCombiningCharacterForLatin1(UniChar character);
extern UniChar CFStringEncodingPrecomposeLatinCharacter(const UniChar *character, UInt32 numChars, UInt32 *usedChars);
typedef struct _CFStringEncodingUnicodeTo8BitCharMap {
UniChar _u;
UInt8 _c;
UInt8 :8;
} CFStringEncodingUnicodeTo8BitCharMap;
CF_INLINE Boolean CFStringEncodingUnicodeTo8BitEncoding(const CFStringEncodingUnicodeTo8BitCharMap *theTable, UInt32 numElem, UniChar character, UInt8 *ch) {
const CFStringEncodingUnicodeTo8BitCharMap *p, *q, *divider;
if ((character < theTable[0]._u) || (character > theTable[numElem-1]._u)) {
return 0;
}
p = theTable;
q = p + (numElem-1);
while (p <= q) {
divider = p + ((q - p) >> 1);
if (character < divider->_u) { q = divider - 1; }
else if (character > divider->_u) { p = divider + 1; }
else { *ch = divider->_c; return 1; }
}
return 0;
}
#if defined(__cplusplus)
}
#endif
#endif