--- /dev/null
+/*
+ * Copyright (c) 2009 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@
+ */
+/* CFPlatformConverters.c
+ Copyright (c) 1998-2009, Apple Inc. All rights reserved.
+ Responsibility: Aki Inoue
+*/
+
+#include "CFInternal.h"
+#include <CoreFoundation/CFString.h>
+#include "CFStringEncodingConverterExt.h"
+#include <CoreFoundation/CFStringEncodingExt.h>
+#include <CoreFoundation/CFPreferences.h>
+#include "CFUniChar.h"
+#include "CFUnicodeDecomposition.h"
+#include "CFStringEncodingConverterPriv.h"
+#include "CFICUConverters.h"
+
+
+CF_INLINE bool __CFIsPlatformConverterAvailable(int encoding) {
+
+#if DEPLOYMENT_TARGET_WINDOWS
+ return (IsValidCodePage(CFStringConvertEncodingToWindowsCodepage(encoding)) ? true : false);
+#else
+ return false;
+#endif
+}
+
+static const CFStringEncodingConverter __CFICUBootstrap = {
+ NULL /* toBytes */, NULL /* toUnicode */, 6 /* maxBytesPerChar */, 4 /* maxDecomposedCharLen */,
+ kCFStringEncodingConverterICU /* encodingClass */,
+ NULL /* toBytesLen */, NULL /* toUnicodeLen */, NULL /* toBytesFallback */,
+ NULL /* toUnicodeFallback */, NULL /* toBytesPrecompose */, NULL, /* isValidCombiningChar */
+};
+
+static const CFStringEncodingConverter __CFPlatformBootstrap = {
+ NULL /* toBytes */, NULL /* toUnicode */, 6 /* maxBytesPerChar */, 4 /* maxDecomposedCharLen */,
+ kCFStringEncodingConverterPlatformSpecific /* encodingClass */,
+ NULL /* toBytesLen */, NULL /* toUnicodeLen */, NULL /* toBytesFallback */,
+ NULL /* toUnicodeFallback */, NULL /* toBytesPrecompose */, NULL, /* isValidCombiningChar */
+};
+
+__private_extern__ const CFStringEncodingConverter *__CFStringEncodingGetExternalConverter(uint32_t encoding) {
+
+ if (NULL != __CFStringEncodingGetICUName(encoding)) return &__CFICUBootstrap;
+
+ return (__CFIsPlatformConverterAvailable(encoding) ? &__CFPlatformBootstrap : NULL);
+}
+
+#if DEPLOYMENT_TARGET_MACOSX || DEPLOYMENT_TARGET_EMBEDDED
+__private_extern__ CFStringEncoding *__CFStringEncodingCreateListOfAvailablePlatformConverters(CFAllocatorRef allocator, CFIndex *numberOfConverters) {
+
+ return NULL;
+}
+#elif DEPLOYMENT_TARGET_WINDOWS
+
+#include <tchar.h>
+
+static uint32_t __CFWin32EncodingIndex = 0;
+static CFStringEncoding *__CFWin32EncodingList = NULL;
+
+static char CALLBACK __CFWin32EnumCodePageProc(LPTSTR string) {
+ uint32_t encoding = CFStringConvertWindowsCodepageToEncoding(_tcstoul(string, NULL, 10));
+ CFIndex idx;
+
+ if (encoding != kCFStringEncodingInvalidId) { // We list only encodings we know
+ if (__CFWin32EncodingList) {
+ for (idx = 0;idx < (CFIndex)__CFWin32EncodingIndex;idx++) if (__CFWin32EncodingList[idx] == encoding) break;
+ if (idx != __CFWin32EncodingIndex) return true;
+ __CFWin32EncodingList[__CFWin32EncodingIndex] = encoding;
+ }
+ ++__CFWin32EncodingIndex;
+ }
+ return true;
+}
+
+__private_extern__ CFStringEncoding *__CFStringEncodingCreateListOfAvailablePlatformConverters(CFAllocatorRef allocator, CFIndex *numberOfConverters) {
+ CFStringEncoding *encodings;
+
+ EnumSystemCodePages((CODEPAGE_ENUMPROC)&__CFWin32EnumCodePageProc, CP_INSTALLED);
+ __CFWin32EncodingList = (uint32_t *)CFAllocatorAllocate(allocator, sizeof(uint32_t) * __CFWin32EncodingIndex, 0);
+ EnumSystemCodePages((CODEPAGE_ENUMPROC)&__CFWin32EnumCodePageProc, CP_INSTALLED);
+
+ *numberOfConverters = __CFWin32EncodingIndex;
+ encodings = __CFWin32EncodingList;
+
+ __CFWin32EncodingIndex = 0;
+ __CFWin32EncodingList = NULL;
+
+ return encodings;
+}
+#else
+__private_extern__ CFStringEncoding *__CFStringEncodingCreateListOfAvailablePlatformConverters(CFAllocatorRef allocator, CFIndex *numberOfConverters) { return NULL; }
+#endif
+
+__private_extern__ CFIndex __CFStringEncodingPlatformUnicodeToBytes(uint32_t encoding, uint32_t flags, const UniChar *characters, CFIndex numChars, CFIndex *usedCharLen, uint8_t *bytes, CFIndex maxByteLen, CFIndex *usedByteLen) {
+
+#if DEPLOYMENT_TARGET_WINDOWS
+ WORD dwFlags = 0;
+ CFIndex usedLen;
+
+ dwFlags |= (flags & (kCFStringEncodingAllowLossyConversion|kCFStringEncodingSubstituteCombinings) ? WC_DEFAULTCHAR : 0);
+ dwFlags |= (flags & kCFStringEncodingComposeCombinings ? WC_COMPOSITECHECK : 0);
+ dwFlags |= (flags & kCFStringEncodingIgnoreCombinings ? WC_DISCARDNS : 0);
+
+ if ((usedLen = WideCharToMultiByte(CFStringConvertEncodingToWindowsCodepage(encoding), dwFlags, (LPCWSTR)characters, numChars, (LPSTR)bytes, maxByteLen, NULL, NULL)) == 0) {
+ if (GetLastError() == ERROR_INSUFFICIENT_BUFFER) {
+ CPINFO cpInfo;
+
+ if (!GetCPInfo(CFStringConvertEncodingToWindowsCodepage(encoding), &cpInfo)) {
+ cpInfo.MaxCharSize = 1; // Is this right ???
+ }
+ if (cpInfo.MaxCharSize == 1) {
+ numChars = maxByteLen;
+ } else {
+ usedLen = WideCharToMultiByte(CFStringConvertEncodingToWindowsCodepage(encoding), dwFlags, (LPCWSTR)characters, numChars, NULL, 0, NULL, NULL);
+ usedLen -= maxByteLen;
+ numChars = (numChars > usedLen ? numChars - usedLen : 1);
+ }
+ if (WideCharToMultiByte(CFStringConvertEncodingToWindowsCodepage(encoding), dwFlags, (LPCWSTR)characters, numChars, (LPSTR)bytes, maxByteLen, NULL, NULL) == 0) {
+ if (usedCharLen) *usedCharLen = 0;
+ if (usedByteLen) *usedByteLen = 0;
+ } else {
+ CFIndex lastUsedLen = 0;
+
+ while ((usedLen = WideCharToMultiByte(CFStringConvertEncodingToWindowsCodepage(encoding), dwFlags, (LPCWSTR)characters, ++numChars, (LPSTR)bytes, maxByteLen, NULL, NULL))) lastUsedLen = usedLen;
+ if (usedCharLen) *usedCharLen = (numChars - 1);
+ if (usedByteLen) *usedByteLen = lastUsedLen;
+ }
+
+ return kCFStringEncodingInsufficientOutputBufferLength;
+ } else {
+ return kCFStringEncodingInvalidInputStream;
+ }
+ } else {
+ if (usedCharLen) *usedCharLen = numChars;
+ if (usedByteLen) *usedByteLen = usedLen;
+ return kCFStringEncodingConversionSuccess;
+ }
+#endif /* DEPLOYMENT_TARGET_WINDOWS */
+
+ return kCFStringEncodingConverterUnavailable;
+}
+
+__private_extern__ CFIndex __CFStringEncodingPlatformBytesToUnicode(uint32_t encoding, uint32_t flags, const uint8_t *bytes, CFIndex numBytes, CFIndex *usedByteLen, UniChar *characters, CFIndex maxCharLen, CFIndex *usedCharLen) {
+
+#if DEPLOYMENT_TARGET_WINDOWS
+ WORD dwFlags = 0;
+ CFIndex usedLen;
+
+ dwFlags |= (flags & (kCFStringEncodingAllowLossyConversion|kCFStringEncodingSubstituteCombinings) ? 0 : MB_ERR_INVALID_CHARS);
+ dwFlags |= (flags & (kCFStringEncodingUseCanonical|kCFStringEncodingUseHFSPlusCanonical) ? MB_COMPOSITE : MB_PRECOMPOSED);
+
+ if ((usedLen = MultiByteToWideChar(CFStringConvertEncodingToWindowsCodepage(encoding), dwFlags, (LPCSTR)bytes, numBytes, (LPWSTR)characters, maxCharLen) == 0)) {
+ if (GetLastError() == ERROR_INSUFFICIENT_BUFFER) {
+ CPINFO cpInfo;
+
+ if (!GetCPInfo(CFStringConvertEncodingToWindowsCodepage(encoding), &cpInfo)) {
+ cpInfo.MaxCharSize = 1; // Is this right ???
+ }
+ if (cpInfo.MaxCharSize == 1) {
+ numBytes = maxCharLen;
+ } else {
+ usedLen = MultiByteToWideChar(CFStringConvertEncodingToWindowsCodepage(encoding), dwFlags, (LPCSTR)bytes, numBytes, (LPWSTR)characters, maxCharLen);
+ usedLen -= maxCharLen;
+ numBytes = (numBytes > usedLen ? numBytes - usedLen : 1);
+ }
+ while ((usedLen = MultiByteToWideChar(CFStringConvertEncodingToWindowsCodepage(encoding), dwFlags, (LPCSTR)bytes, numBytes, (LPWSTR)characters, maxCharLen)) == 0) {
+ if ((--numBytes) == 0) break;
+ }
+ if (usedCharLen) *usedCharLen = usedLen;
+ if (usedByteLen) *usedByteLen = numBytes;
+
+ return kCFStringEncodingInsufficientOutputBufferLength;
+ } else {
+ return kCFStringEncodingInvalidInputStream;
+ }
+ } else {
+ if (usedCharLen) *usedCharLen = usedLen;
+ if (usedByteLen) *usedByteLen = numBytes;
+ return kCFStringEncodingConversionSuccess;
+ }
+#endif /* DEPLOYMENT_TARGET_WINDOWS */
+
+ return kCFStringEncodingConverterUnavailable;
+}
+
+__private_extern__ CFIndex __CFStringEncodingPlatformCharLengthForBytes(uint32_t encoding, uint32_t flags, const uint8_t *bytes, CFIndex numBytes) {
+ CFIndex usedCharLen;
+ return (__CFStringEncodingPlatformBytesToUnicode(encoding, flags, bytes, numBytes, NULL, NULL, 0, &usedCharLen) == kCFStringEncodingConversionSuccess ? usedCharLen : 0);
+}
+
+__private_extern__ CFIndex __CFStringEncodingPlatformByteLengthForCharacters(uint32_t encoding, uint32_t flags, const UniChar *characters, CFIndex numChars) {
+ CFIndex usedByteLen;
+ return (__CFStringEncodingPlatformUnicodeToBytes(encoding, flags, characters, numChars, NULL, NULL, 0, &usedByteLen) == kCFStringEncodingConversionSuccess ? usedByteLen : 0);
+}
+
+#undef __CFCarbonCore_GetTextEncodingBase0
+
projects / apple / cf.git / blobdiff