Skip to content

HTTPS clone URL

Subversion checkout URL

You can clone with HTTPS or Subversion.

Download ZIP
branch: master
Fetching contributors…

Cannot retrieve contributors at this time

142 lines (118 sloc) 6.364 kb
/*
* Copyright (c) 2008-2009 Brent Fulgham <bfulgham@gmail.org>. All rights reserved.
*
* This source code is a modified version of the CoreFoundation sources released by Apple Inc. under
* the terms of the APSL version 2.0 (see below).
*
* For information about changes from the original Apple source release can be found by reviewing the
* source control system for the project at https://sourceforge.net/svn/?group_id=246198.
*
* The original license information is as follows:
*
* Copyright (c) 2008 Apple Inc. All rights reserved.
*
* @APPLE_LICENSE_HEADER_START@
*
* This file contains Original Code and/or Modifications of Original Code
* as defined in and that are subject to the Apple Public Source License
* Version 2.0 (the 'License'). You may not use this file except in
* compliance with the License. Please obtain a copy of the License at
* http://www.opensource.apple.com/apsl/ and read it before using this
* file.
*
* The Original Code and all software distributed under the License are
* distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER
* EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,
* INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT.
* Please see the License for the specific language governing rights and
* limitations under the License.
*
* @APPLE_LICENSE_HEADER_END@
*/
/* CFStringEncodingConverterExt.h
Copyright (c) 1998-2007, Apple Inc. All rights reserved.
*/
#if !defined(__COREFOUNDATION_CFSTRINGENCODINGCONVERETEREXT__)
#define __COREFOUNDATION_CFSTRINGENCODINGCONVERETEREXT__ 1
#include <CoreFoundation/CFStringEncodingConverter.h>
CF_EXTERN_C_BEGIN
#define MAX_DECOMPOSED_LENGTH (10)
enum {
kCFStringEncodingConverterStandard = 0,
kCFStringEncodingConverterCheapEightBit = 1,
kCFStringEncodingConverterStandardEightBit = 2,
kCFStringEncodingConverterCheapMultiByte = 3,
kCFStringEncodingConverterPlatformSpecific = 4 // Other fields are ignored
};
/* kCFStringEncodingConverterStandard */
typedef CFIndex (*CFStringEncodingToBytesProc)(uint32_t flags, const UniChar *characters, CFIndex numChars, uint8_t *bytes, CFIndex maxByteLen, CFIndex *usedByteLen);
typedef CFIndex (*CFStringEncodingToUnicodeProc)(uint32_t flags, const uint8_t *bytes, CFIndex numBytes, UniChar *characters, CFIndex maxCharLen, CFIndex *usedCharLen);
/* kCFStringEncodingConverterCheapEightBit */
typedef bool (*CFStringEncodingCheapEightBitToBytesProc)(uint32_t flags, UniChar character, uint8_t *byte);
typedef bool (*CFStringEncodingCheapEightBitToUnicodeProc)(uint32_t flags, uint8_t byte, UniChar *character);
/* kCFStringEncodingConverterStandardEightBit */
typedef uint16_t (*CFStringEncodingStandardEightBitToBytesProc)(uint32_t flags, const UniChar *characters, CFIndex numChars, uint8_t *byte);
typedef uint16_t (*CFStringEncodingStandardEightBitToUnicodeProc)(uint32_t flags, uint8_t byte, UniChar *characters);
/* kCFStringEncodingConverterCheapMultiByte */
typedef uint16_t (*CFStringEncodingCheapMultiByteToBytesProc)(uint32_t flags, UniChar character, uint8_t *bytes);
typedef uint16_t (*CFStringEncodingCheapMultiByteToUnicodeProc)(uint32_t flags, const uint8_t *bytes, CFIndex numBytes, UniChar *character);
typedef CFIndex (*CFStringEncodingToBytesLenProc)(uint32_t flags, const UniChar *characters, CFIndex numChars);
typedef CFIndex (*CFStringEncodingToUnicodeLenProc)(uint32_t flags, const uint8_t *bytes, CFIndex numBytes);
typedef CFIndex (*CFStringEncodingToBytesPrecomposeProc)(uint32_t flags, const UniChar *character, CFIndex numChars, uint8_t *bytes, CFIndex maxByteLen, CFIndex *usedByteLen);
typedef bool (*CFStringEncodingIsValidCombiningCharacterProc)(UniChar character);
typedef struct {
void *toBytes;
void *toUnicode;
uint16_t maxBytesPerChar;
uint16_t maxDecomposedCharLen;
uint8_t encodingClass;
uint32_t :24;
CFStringEncodingToBytesLenProc toBytesLen;
CFStringEncodingToUnicodeLenProc toUnicodeLen;
CFStringEncodingToBytesFallbackProc toBytesFallback;
CFStringEncodingToUnicodeFallbackProc toUnicodeFallback;
CFStringEncodingToBytesPrecomposeProc toBytesPrecompose;
CFStringEncodingIsValidCombiningCharacterProc isValidCombiningChar;
} CFStringEncodingConverter;
extern const CFStringEncodingConverter *CFStringEncodingGetConverter(uint32_t encoding);
enum {
kCFStringEncodingGetConverterSelector = 0,
kCFStringEncodingIsDecomposableCharacterSelector = 1,
kCFStringEncodingDecomposeCharacterSelector = 2,
kCFStringEncodingIsValidLatin1CombiningCharacterSelector = 3,
kCFStringEncodingPrecomposeLatin1CharacterSelector = 4
};
extern const void *CFStringEncodingGetAddressForSelector(uint32_t selector);
#define BOOTSTRAPFUNC_NAME CFStringEncodingBootstrap
typedef const CFStringEncodingConverter* (*CFStringEncodingBootstrapProc)(uint32_t encoding, const void *getSelector);
extern uint32_t CFStringEncodingGetScriptCodeForEncoding(CFStringEncoding encoding);
/* Latin precomposition */
/* This function does not precompose recursively nor to U+01E0 and U+01E1.
*/
extern bool CFStringEncodingIsValidCombiningCharacterForLatin1(UniChar character);
extern UniChar CFStringEncodingPrecomposeLatinCharacter(const UniChar *character, CFIndex numChars, CFIndex *usedChars);
/* Convenience functions for converter development */
typedef struct _CFStringEncodingUnicodeTo8BitCharMap {
UniChar _u;
uint8_t _c;
uint8_t :8;
} CFStringEncodingUnicodeTo8BitCharMap;
/* Binary searches CFStringEncodingUnicodeTo8BitCharMap */
CF_INLINE bool CFStringEncodingUnicodeTo8BitEncoding(const CFStringEncodingUnicodeTo8BitCharMap *theTable, CFIndex numElem, UniChar character, uint8_t *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); /* divide by 2 */
if (character < divider->_u) { q = divider - 1; }
else if (character > divider->_u) { p = divider + 1; }
else { *ch = divider->_c; return 1; }
}
return 0;
}
CF_EXTERN_C_END
#endif /* ! __COREFOUNDATION_CFSTRINGENCODINGCONVERETEREXT__ */
Jump to Line
Something went wrong with that request. Please try again.