/* * Copyright (c) 2014 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@ */ /* CFBuiltinConverters.c Copyright (c) 1999-2013, Apple Inc. All rights reserved. Responsibility: Aki Inoue */ #include "CFStringEncodingConverterExt.h" #include "CFUniChar.h" #include "CFUnicodeDecomposition.h" #include "CFUnicodePrecomposition.h" #include "CFStringEncodingConverterPriv.h" #include "CFInternal.h" #define ParagraphSeparator 0x2029 #define ASCIINewLine 0x0a static int8_t __CFMapsParagraphSeparator = -1; CF_INLINE bool __CFIsParagraphSeparator(UTF16Char character) { if (-1 == __CFMapsParagraphSeparator) __CFMapsParagraphSeparator = (1 ? false : true); return ((__CFMapsParagraphSeparator && (ParagraphSeparator == character)) ? true : false); } /* Precomposition */ static const uint32_t __CFLatin1CombiningCharBitmap[] = { // 0x300 ~ 0x35FF 0xFBB94010, 0x01800000, 0x0000000, }; bool CFStringEncodingIsValidCombiningCharacterForLatin1(UniChar character) { return ((character >= 0x300) && (character < 0x360) && (__CFLatin1CombiningCharBitmap[(character - 0x300) / 32] & (1 << (31 - ((character - 0x300) % 32)))) ? true : false); } UniChar CFStringEncodingPrecomposeLatinCharacter(const UniChar *character, CFIndex numChars, CFIndex *usedChars) { if (numChars > 0) { UTF32Char ch = *(character++), nextCh, composedChar; CFIndex usedCharLen = 1; if (CFUniCharIsSurrogateHighCharacter(ch) || CFUniCharIsSurrogateLowCharacter(ch)) { if (usedChars) (*usedChars) = usedCharLen; return ch; } while (usedCharLen < numChars) { nextCh = *(character++); if (CFUniCharIsSurrogateHighCharacter(nextCh) || CFUniCharIsSurrogateLowCharacter(nextCh)) break; if (CFUniCharIsMemberOf(nextCh, kCFUniCharNonBaseCharacterSet) && ((composedChar = CFUniCharPrecomposeCharacter(ch, nextCh)) != 0xFFFD)) { if (composedChar > 0xFFFF) { // Non-base break; } else { ch = composedChar; } } else { break; } ++usedCharLen; } if (usedChars) (*usedChars) = usedCharLen; if (usedCharLen > 1) return ch; } return 0xFFFD; } /* ASCII */ static bool __CFToASCII(uint32_t flags, UniChar character, uint8_t *byte) { if (character < 0x80) { *byte = (uint8_t)character; } else if (__CFIsParagraphSeparator(character)) { *byte = ASCIINewLine; } else { return false; } return true; } static bool __CFFromASCII(uint32_t flags, uint8_t byte, UniChar *character) { if (byte < 0x80) { *character = (UniChar)byte; return true; } else { return false; } } CF_PRIVATE const CFStringEncodingConverter __CFConverterASCII = { __CFToASCII, __CFFromASCII, 1, 1, kCFStringEncodingConverterCheapEightBit, NULL, NULL, NULL, NULL, NULL, NULL, }; /* ISO Latin 1 (8859-1) */ static bool __CFToISOLatin1(uint32_t flags, UniChar character, uint8_t *byte) { if (character <= 0xFF) { *byte = (uint8_t)character; } else if (__CFIsParagraphSeparator(character)) { *byte = ASCIINewLine; } else { return false; } return true; } static bool __CFFromISOLatin1(uint32_t flags, uint8_t byte, UniChar *character) { *character = (UniChar)byte; return true; } static CFIndex __CFToISOLatin1Precompose(uint32_t flags, const UniChar *character, CFIndex numChars, uint8_t *bytes, CFIndex maxByteLen, CFIndex *usedByteLen) { uint8_t byte; CFIndex usedCharLen; if (__CFToISOLatin1(flags, CFStringEncodingPrecomposeLatinCharacter(character, numChars, &usedCharLen), &byte) && byte && (usedCharLen > 1)) { if (maxByteLen) *bytes = byte; *usedByteLen = 1; return usedCharLen; } else { return 0; } } CF_PRIVATE const CFStringEncodingConverter __CFConverterISOLatin1 = { __CFToISOLatin1, __CFFromISOLatin1, 1, 1, kCFStringEncodingConverterCheapEightBit, NULL, NULL, NULL, NULL, __CFToISOLatin1Precompose, CFStringEncodingIsValidCombiningCharacterForLatin1, }; /* Mac Roman */ #define NUM_MACROMAN_FROM_UNI 129 static const CFStringEncodingUnicodeTo8BitCharMap macRoman_from_uni[NUM_MACROMAN_FROM_UNI] = { { 0x00A0, 0xCA }, /* NO-BREAK SPACE */ { 0x00A1, 0xC1 }, /* INVERTED EXCLAMATION MARK */ { 0x00A2, 0xA2 }, /* CENT SIGN */ { 0x00A3, 0xA3 }, /* POUND SIGN */ { 0x00A5, 0xB4 }, /* YEN SIGN */ { 0x00A7, 0xA4 }, /* SECTION SIGN */ { 0x00A8, 0xAC }, /* DIAERESIS */ { 0x00A9, 0xA9 }, /* COPYRIGHT SIGN */ { 0x00AA, 0xBB }, /* FEMININE ORDINAL INDICATOR */ { 0x00AB, 0xC7 }, /* LEFT-POINTING DOUBLE ANGLE QUOTATION MARK */ { 0x00AC, 0xC2 }, /* NOT SIGN */ { 0x00AE, 0xA8 }, /* REGISTERED SIGN */ { 0x00AF, 0xF8 }, /* MACRON */ { 0x00B0, 0xA1 }, /* DEGREE SIGN */ { 0x00B1, 0xB1 }, /* PLUS-MINUS SIGN */ { 0x00B4, 0xAB }, /* ACUTE ACCENT */ { 0x00B5, 0xB5 }, /* MICRO SIGN */ { 0x00B6, 0xA6 }, /* PILCROW SIGN */ { 0x00B7, 0xE1 }, /* MIDDLE DOT */ { 0x00B8, 0xFC }, /* CEDILLA */ { 0x00BA, 0xBC }, /* MASCULINE ORDINAL INDICATOR */ { 0x00BB, 0xC8 }, /* RIGHT-POINTING DOUBLE ANGLE QUOTATION MARK */ { 0x00BF, 0xC0 }, /* INVERTED QUESTION MARK */ { 0x00C0, 0xCB }, /* LATIN CAPITAL LETTER A WITH GRAVE */ { 0x00C1, 0xE7 }, /* LATIN CAPITAL LETTER A WITH ACUTE */ { 0x00C2, 0xE5 }, /* LATIN CAPITAL LETTER A WITH CIRCUMFLEX */ { 0x00C3, 0xCC }, /* LATIN CAPITAL LETTER A WITH TILDE */ { 0x00C4, 0x80 }, /* LATIN CAPITAL LETTER A WITH DIAERESIS */ { 0x00C5, 0x81 }, /* LATIN CAPITAL LETTER A WITH RING ABOVE */ { 0x00C6, 0xAE }, /* LATIN CAPITAL LIGATURE AE */ { 0x00C7, 0x82 }, /* LATIN CAPITAL LETTER C WITH CEDILLA */ { 0x00C8, 0xE9 }, /* LATIN CAPITAL LETTER E WITH GRAVE */ { 0x00C9, 0x83 }, /* LATIN CAPITAL LETTER E WITH ACUTE */ { 0x00CA, 0xE6 }, /* LATIN CAPITAL LETTER E WITH CIRCUMFLEX */ { 0x00CB, 0xE8 }, /* LATIN CAPITAL LETTER E WITH DIAERESIS */ { 0x00CC, 0xED }, /* LATIN CAPITAL LETTER I WITH GRAVE */ { 0x00CD, 0xEA }, /* LATIN CAPITAL LETTER I WITH ACUTE */ { 0x00CE, 0xEB }, /* LATIN CAPITAL LETTER I WITH CIRCUMFLEX */ { 0x00CF, 0xEC }, /* LATIN CAPITAL LETTER I WITH DIAERESIS */ { 0x00D1, 0x84 }, /* LATIN CAPITAL LETTER N WITH TILDE */ { 0x00D2, 0xF1 }, /* LATIN CAPITAL LETTER O WITH GRAVE */ { 0x00D3, 0xEE }, /* LATIN CAPITAL LETTER O WITH ACUTE */ { 0x00D4, 0xEF }, /* LATIN CAPITAL LETTER O WITH CIRCUMFLEX */ { 0x00D5, 0xCD }, /* LATIN CAPITAL LETTER O WITH TILDE */ { 0x00D6, 0x85 }, /* LATIN CAPITAL LETTER O WITH DIAERESIS */ { 0x00D8, 0xAF }, /* LATIN CAPITAL LETTER O WITH STROKE */ { 0x00D9, 0xF4 }, /* LATIN CAPITAL LETTER U WITH GRAVE */ { 0x00DA, 0xF2 }, /* LATIN CAPITAL LETTER U WITH ACUTE */ { 0x00DB, 0xF3 }, /* LATIN CAPITAL LETTER U WITH CIRCUMFLEX */ { 0x00DC, 0x86 }, /* LATIN CAPITAL LETTER U WITH DIAERESIS */ { 0x00DF, 0xA7 }, /* LATIN SMALL LETTER SHARP S */ { 0x00E0, 0x88 }, /* LATIN SMALL LETTER A WITH GRAVE */ { 0x00E1, 0x87 }, /* LATIN SMALL LETTER A WITH ACUTE */ { 0x00E2, 0x89 }, /* LATIN SMALL LETTER A WITH CIRCUMFLEX */ { 0x00E3, 0x8B }, /* LATIN SMALL LETTER A WITH TILDE */ { 0x00E4, 0x8A }, /* LATIN SMALL LETTER A WITH DIAERESIS */ { 0x00E5, 0x8C }, /* LATIN SMALL LETTER A WITH RING ABOVE */ { 0x00E6, 0xBE }, /* LATIN SMALL LIGATURE AE */ { 0x00E7, 0x8D }, /* LATIN SMALL LETTER C WITH CEDILLA */ { 0x00E8, 0x8F }, /* LATIN SMALL LETTER E WITH GRAVE */ { 0x00E9, 0x8E }, /* LATIN SMALL LETTER E WITH ACUTE */ { 0x00EA, 0x90 }, /* LATIN SMALL LETTER E WITH CIRCUMFLEX */ { 0x00EB, 0x91 }, /* LATIN SMALL LETTER E WITH DIAERESIS */ { 0x00EC, 0x93 }, /* LATIN SMALL LETTER I WITH GRAVE */ { 0x00ED, 0x92 }, /* LATIN SMALL LETTER I WITH ACUTE */ { 0x00EE, 0x94 }, /* LATIN SMALL LETTER I WITH CIRCUMFLEX */ { 0x00EF, 0x95 }, /* LATIN SMALL LETTER I WITH DIAERESIS */ { 0x00F1, 0x96 }, /* LATIN SMALL LETTER N WITH TILDE */ { 0x00F2, 0x98 }, /* LATIN SMALL LETTER O WITH GRAVE */ { 0x00F3, 0x97 }, /* LATIN SMALL LETTER O WITH ACUTE */ { 0x00F4, 0x99 }, /* LATIN SMALL LETTER O WITH CIRCUMFLEX */ { 0x00F5, 0x9B }, /* LATIN SMALL LETTER O WITH TILDE */ { 0x00F6, 0x9A }, /* LATIN SMALL LETTER O WITH DIAERESIS */ { 0x00F7, 0xD6 }, /* DIVISION SIGN */ { 0x00F8, 0xBF }, /* LATIN SMALL LETTER O WITH STROKE */ { 0x00F9, 0x9D }, /* LATIN SMALL LETTER U WITH GRAVE */ { 0x00FA, 0x9C }, /* LATIN SMALL LETTER U WITH ACUTE */ { 0x00FB, 0x9E }, /* LATIN SMALL LETTER U WITH CIRCUMFLEX */ { 0x00FC, 0x9F }, /* LATIN SMALL LETTER U WITH DIAERESIS */ { 0x00FF, 0xD8 }, /* LATIN SMALL LETTER Y WITH DIAERESIS */ { 0x0131, 0xF5 }, /* LATIN SMALL LETTER DOTLESS I */ { 0x0152, 0xCE }, /* LATIN CAPITAL LIGATURE OE */ { 0x0153, 0xCF }, /* LATIN SMALL LIGATURE OE */ { 0x0178, 0xD9 }, /* LATIN CAPITAL LETTER Y WITH DIAERESIS */ { 0x0192, 0xC4 }, /* LATIN SMALL LETTER F WITH HOOK */ { 0x02C6, 0xF6 }, /* MODIFIER LETTER CIRCUMFLEX ACCENT */ { 0x02C7, 0xFF }, /* CARON */ { 0x02D8, 0xF9 }, /* BREVE */ { 0x02D9, 0xFA }, /* DOT ABOVE */ { 0x02DA, 0xFB }, /* RING ABOVE */ { 0x02DB, 0xFE }, /* OGONEK */ { 0x02DC, 0xF7 }, /* SMALL TILDE */ { 0x02DD, 0xFD }, /* DOUBLE ACUTE ACCENT */ { 0x03A9, 0xBD }, /* OHM SIGN (Canonical ?) */ { 0x03C0, 0xB9 }, /* GREEK SMALL LETTER PI */ { 0x2013, 0xD0 }, /* EN DASH */ { 0x2014, 0xD1 }, /* EM DASH */ { 0x2018, 0xD4 }, /* LEFT SINGLE QUOTATION MARK */ { 0x2019, 0xD5 }, /* RIGHT SINGLE QUOTATION MARK */ { 0x201A, 0xE2 }, /* SINGLE LOW-9 QUOTATION MARK */ { 0x201C, 0xD2 }, /* LEFT DOUBLE QUOTATION MARK */ { 0x201D, 0xD3 }, /* RIGHT DOUBLE QUOTATION MARK */ { 0x201E, 0xE3 }, /* DOUBLE LOW-9 QUOTATION MARK */ { 0x2020, 0xA0 }, /* DAGGER */ { 0x2021, 0xE0 }, /* DOUBLE DAGGER */ { 0x2022, 0xA5 }, /* BULLET */ { 0x2026, 0xC9 }, /* HORIZONTAL ELLIPSIS */ { 0x2030, 0xE4 }, /* PER MILLE SIGN */ { 0x2039, 0xDC }, /* SINGLE LEFT-POINTING ANGLE QUOTATION MARK */ { 0x203A, 0xDD }, /* SINGLE RIGHT-POINTING ANGLE QUOTATION MARK */ { 0x2044, 0xDA }, /* FRACTION SLASH */ { 0x20AC, 0xDB }, /* EURO SIGN */ { 0x2122, 0xAA }, /* TRADE MARK SIGN */ { 0x2126, 0xBD }, /* OHM SIGN */ { 0x2202, 0xB6 }, /* PARTIAL DIFFERENTIAL */ { 0x2206, 0xC6 }, /* INCREMENT */ { 0x220F, 0xB8 }, /* N-ARY PRODUCT */ { 0x2211, 0xB7 }, /* N-ARY SUMMATION */ { 0x221A, 0xC3 }, /* SQUARE ROOT */ { 0x221E, 0xB0 }, /* INFINITY */ { 0x222B, 0xBA }, /* INTEGRAL */ { 0x2248, 0xC5 }, /* ALMOST EQUAL TO */ { 0x2260, 0xAD }, /* NOT EQUAL TO */ { 0x2264, 0xB2 }, /* LESS-THAN OR EQUAL TO */ { 0x2265, 0xB3 }, /* GREATER-THAN OR EQUAL TO */ { 0x25CA, 0xD7 }, /* LOZENGE */ { 0xF8FF, 0xF0 }, /* Apple logo */ { 0xFB01, 0xDE }, /* LATIN SMALL LIGATURE FI */ { 0xFB02, 0xDF }, /* LATIN SMALL LIGATURE FL */ }; static bool __CFToMacRoman(uint32_t flags, UniChar character, uint8_t *byte) { if (character < 0x80) { *byte = (uint8_t)character; return true; } else { return CFStringEncodingUnicodeTo8BitEncoding(macRoman_from_uni, NUM_MACROMAN_FROM_UNI, character, byte); } } static const UniChar macRoman_to_uni[128] = { 0x00C4, /* LATIN CAPITAL LETTER A WITH DIAERESIS */ 0x00C5, /* LATIN CAPITAL LETTER A WITH RING ABOVE */ 0x00C7, /* LATIN CAPITAL LETTER C WITH CEDILLA */ 0x00C9, /* LATIN CAPITAL LETTER E WITH ACUTE */ 0x00D1, /* LATIN CAPITAL LETTER N WITH TILDE */ 0x00D6, /* LATIN CAPITAL LETTER O WITH DIAERESIS */ 0x00DC, /* LATIN CAPITAL LETTER U WITH DIAERESIS */ 0x00E1, /* LATIN SMALL LETTER A WITH ACUTE */ 0x00E0, /* LATIN SMALL LETTER A WITH GRAVE */ 0x00E2, /* LATIN SMALL LETTER A WITH CIRCUMFLEX */ 0x00E4, /* LATIN SMALL LETTER A WITH DIAERESIS */ 0x00E3, /* LATIN SMALL LETTER A WITH TILDE */ 0x00E5, /* LATIN SMALL LETTER A WITH RING ABOVE */ 0x00E7, /* LATIN SMALL LETTER C WITH CEDILLA */ 0x00E9, /* LATIN SMALL LETTER E WITH ACUTE */ 0x00E8, /* LATIN SMALL LETTER E WITH GRAVE */ 0x00EA, /* LATIN SMALL LETTER E WITH CIRCUMFLEX */ 0x00EB, /* LATIN SMALL LETTER E WITH DIAERESIS */ 0x00ED, /* LATIN SMALL LETTER I WITH ACUTE */ 0x00EC, /* LATIN SMALL LETTER I WITH GRAVE */ 0x00EE, /* LATIN SMALL LETTER I WITH CIRCUMFLEX */ 0x00EF, /* LATIN SMALL LETTER I WITH DIAERESIS */ 0x00F1, /* LATIN SMALL LETTER N WITH TILDE */ 0x00F3, /* LATIN SMALL LETTER O WITH ACUTE */ 0x00F2, /* LATIN SMALL LETTER O WITH GRAVE */ 0x00F4, /* LATIN SMALL LETTER O WITH CIRCUMFLEX */ 0x00F6, /* LATIN SMALL LETTER O WITH DIAERESIS */ 0x00F5, /* LATIN SMALL LETTER O WITH TILDE */ 0x00FA, /* LATIN SMALL LETTER U WITH ACUTE */ 0x00F9, /* LATIN SMALL LETTER U WITH GRAVE */ 0x00FB, /* LATIN SMALL LETTER U WITH CIRCUMFLEX */ 0x00FC, /* LATIN SMALL LETTER U WITH DIAERESIS */ 0x2020, /* DAGGER */ 0x00B0, /* DEGREE SIGN */ 0x00A2, /* CENT SIGN */ 0x00A3, /* POUND SIGN */ 0x00A7, /* SECTION SIGN */ 0x2022, /* BULLET */ 0x00B6, /* PILCROW SIGN */ 0x00DF, /* LATIN SMALL LETTER SHARP S */ 0x00AE, /* REGISTERED SIGN */ 0x00A9, /* COPYRIGHT SIGN */ 0x2122, /* TRADE MARK SIGN */ 0x00B4, /* ACUTE ACCENT */ 0x00A8, /* DIAERESIS */ 0x2260, /* NOT EQUAL TO */ 0x00C6, /* LATIN CAPITAL LIGATURE AE */ 0x00D8, /* LATIN CAPITAL LETTER O WITH STROKE */ 0x221E, /* INFINITY */ 0x00B1, /* PLUS-MINUS SIGN */ 0x2264, /* LESS-THAN OR EQUAL TO */ 0x2265, /* GREATER-THAN OR EQUAL TO */ 0x00A5, /* YEN SIGN */ 0x00B5, /* MICRO SIGN */ 0x2202, /* PARTIAL DIFFERENTIAL */ 0x2211, /* N-ARY SUMMATION */ 0x220F, /* N-ARY PRODUCT */ 0x03C0, /* GREEK SMALL LETTER PI */ 0x222B, /* INTEGRAL */ 0x00AA, /* FEMININE ORDINAL INDICATOR */ 0x00BA, /* MASCULINE ORDINAL INDICATOR */ 0x03A9, /* OHM SIGN (Canonical mapping) */ 0x00E6, /* LATIN SMALL LIGATURE AE */ 0x00F8, /* LATIN SMALL LETTER O WITH STROKE */ 0x00BF, /* INVERTED QUESTION MARK */ 0x00A1, /* INVERTED EXCLAMATION MARK */ 0x00AC, /* NOT SIGN */ 0x221A, /* SQUARE ROOT */ 0x0192, /* LATIN SMALL LETTER F WITH HOOK */ 0x2248, /* ALMOST EQUAL TO */ 0x2206, /* INCREMENT */ 0x00AB, /* LEFT-POINTING DOUBLE ANGLE QUOTATION MARK */ 0x00BB, /* RIGHT-POINTING DOUBLE ANGLE QUOTATION MARK */ 0x2026, /* HORIZONTAL ELLIPSIS */ 0x00A0, /* NO-BREAK SPACE */ 0x00C0, /* LATIN CAPITAL LETTER A WITH GRAVE */ 0x00C3, /* LATIN CAPITAL LETTER A WITH TILDE */ 0x00D5, /* LATIN CAPITAL LETTER O WITH TILDE */ 0x0152, /* LATIN CAPITAL LIGATURE OE */ 0x0153, /* LATIN SMALL LIGATURE OE */ 0x2013, /* EN DASH */ 0x2014, /* EM DASH */ 0x201C, /* LEFT DOUBLE QUOTATION MARK */ 0x201D, /* RIGHT DOUBLE QUOTATION MARK */ 0x2018, /* LEFT SINGLE QUOTATION MARK */ 0x2019, /* RIGHT SINGLE QUOTATION MARK */ 0x00F7, /* DIVISION SIGN */ 0x25CA, /* LOZENGE */ 0x00FF, /* LATIN SMALL LETTER Y WITH DIAERESIS */ 0x0178, /* LATIN CAPITAL LETTER Y WITH DIAERESIS */ 0x2044, /* FRACTION SLASH */ 0x20AC, /* EURO SIGN */ 0x2039, /* SINGLE LEFT-POINTING ANGLE QUOTATION MARK */ 0x203A, /* SINGLE RIGHT-POINTING ANGLE QUOTATION MARK */ 0xFB01, /* LATIN SMALL LIGATURE FI */ 0xFB02, /* LATIN SMALL LIGATURE FL */ 0x2021, /* DOUBLE DAGGER */ 0x00B7, /* MIDDLE DOT */ 0x201A, /* SINGLE LOW-9 QUOTATION MARK */ 0x201E, /* DOUBLE LOW-9 QUOTATION MARK */ 0x2030, /* PER MILLE SIGN */ 0x00C2, /* LATIN CAPITAL LETTER A WITH CIRCUMFLEX */ 0x00CA, /* LATIN CAPITAL LETTER E WITH CIRCUMFLEX */ 0x00C1, /* LATIN CAPITAL LETTER A WITH ACUTE */ 0x00CB, /* LATIN CAPITAL LETTER E WITH DIAERESIS */ 0x00C8, /* LATIN CAPITAL LETTER E WITH GRAVE */ 0x00CD, /* LATIN CAPITAL LETTER I WITH ACUTE */ 0x00CE, /* LATIN CAPITAL LETTER I WITH CIRCUMFLEX */ 0x00CF, /* LATIN CAPITAL LETTER I WITH DIAERESIS */ 0x00CC, /* LATIN CAPITAL LETTER I WITH GRAVE */ 0x00D3, /* LATIN CAPITAL LETTER O WITH ACUTE */ 0x00D4, /* LATIN CAPITAL LETTER O WITH CIRCUMFLEX */ 0xF8FF, /* Apple logo */ 0x00D2, /* LATIN CAPITAL LETTER O WITH GRAVE */ 0x00DA, /* LATIN CAPITAL LETTER U WITH ACUTE */ 0x00DB, /* LATIN CAPITAL LETTER U WITH CIRCUMFLEX */ 0x00D9, /* LATIN CAPITAL LETTER U WITH GRAVE */ 0x0131, /* LATIN SMALL LETTER DOTLESS I */ 0x02C6, /* MODIFIER LETTER CIRCUMFLEX ACCENT */ 0x02DC, /* SMALL TILDE */ 0x00AF, /* MACRON */ 0x02D8, /* BREVE */ 0x02D9, /* DOT ABOVE */ 0x02DA, /* RING ABOVE */ 0x00B8, /* CEDILLA */ 0x02DD, /* DOUBLE ACUTE ACCENT */ 0x02DB, /* OGONEK */ 0x02C7, /* CARON */ }; static bool __CFFromMacRoman(uint32_t flags, uint8_t byte, UniChar *character) { *character = (byte < 0x80 ? (UniChar)byte : macRoman_to_uni[byte - 0x80]); return true; } static CFIndex __CFToMacRomanPrecompose(uint32_t flags, const UniChar *character, CFIndex numChars, uint8_t *bytes, CFIndex maxByteLen, CFIndex *usedByteLen) { uint8_t byte; CFIndex usedCharLen; if (__CFToMacRoman(flags, CFStringEncodingPrecomposeLatinCharacter(character, numChars, &usedCharLen), &byte) && byte && (usedCharLen > 1)) { if (maxByteLen) *bytes = byte; *usedByteLen = 1; return usedCharLen; } else { return 0; } } CF_PRIVATE const CFStringEncodingConverter __CFConverterMacRoman = { __CFToMacRoman, __CFFromMacRoman, 1, 1, kCFStringEncodingConverterCheapEightBit, NULL, NULL, NULL, NULL, __CFToMacRomanPrecompose, CFStringEncodingIsValidCombiningCharacterForLatin1, }; /* Win Latin1 (ANSI CodePage 1252) */ #define NUM_1252_FROM_UNI 27 static const CFStringEncodingUnicodeTo8BitCharMap cp1252_from_uni[NUM_1252_FROM_UNI] = { {0x0152, 0x8C}, // LATIN CAPITAL LIGATURE OE {0x0153, 0x9C}, // LATIN SMALL LIGATURE OE {0x0160, 0x8A}, // LATIN CAPITAL LETTER S WITH CARON {0x0161, 0x9A}, // LATIN SMALL LETTER S WITH CARON {0x0178, 0x9F}, // LATIN CAPITAL LETTER Y WITH DIAERESIS {0x017D, 0x8E}, // LATIN CAPITAL LETTER Z WITH CARON {0x017E, 0x9E}, // LATIN SMALL LETTER Z WITH CARON {0x0192, 0x83}, // LATIN SMALL LETTER F WITH HOOK {0x02C6, 0x88}, // MODIFIER LETTER CIRCUMFLEX ACCENT {0x02DC, 0x98}, // SMALL TILDE {0x2013, 0x96}, // EN DASH {0x2014, 0x97}, // EM DASH {0x2018, 0x91}, // LEFT SINGLE QUOTATION MARK {0x2019, 0x92}, // RIGHT SINGLE QUOTATION MARK {0x201A, 0x82}, // SINGLE LOW-9 QUOTATION MARK {0x201C, 0x93}, // LEFT DOUBLE QUOTATION MARK {0x201D, 0x94}, // RIGHT DOUBLE QUOTATION MARK {0x201E, 0x84}, // DOUBLE LOW-9 QUOTATION MARK {0x2020, 0x86}, // DAGGER {0x2021, 0x87}, // DOUBLE DAGGER {0x2022, 0x95}, // BULLET {0x2026, 0x85}, // HORIZONTAL ELLIPSIS {0x2030, 0x89}, // PER MILLE SIGN {0x2039, 0x8B}, // SINGLE LEFT-POINTING ANGLE QUOTATION MARK {0x203A, 0x9B}, // SINGLE RIGHT-POINTING ANGLE QUOTATION MARK {0x20AC, 0x80}, // EURO SIGN {0x2122, 0x99}, // TRADE MARK SIGN }; static bool __CFToWinLatin1(uint32_t flags, UniChar character, uint8_t *byte) { if ((character < 0x80) || ((character > 0x9F) && (character <= 0x00FF))) { *byte = (uint8_t)character; return true; } return CFStringEncodingUnicodeTo8BitEncoding(cp1252_from_uni, NUM_1252_FROM_UNI, character, byte); } static const uint16_t cp1252_to_uni[32] = { 0x20AC, // EURO SIGN 0xFFFD, // NOT USED 0x201A, // SINGLE LOW-9 QUOTATION MARK 0x0192, // LATIN SMALL LETTER F WITH HOOK 0x201E, // DOUBLE LOW-9 QUOTATION MARK 0x2026, // HORIZONTAL ELLIPSIS 0x2020, // DAGGER 0x2021, // DOUBLE DAGGER 0x02C6, // MODIFIER LETTER CIRCUMFLEX ACCENT 0x2030, // PER MILLE SIGN 0x0160, // LATIN CAPITAL LETTER S WITH CARON 0x2039, // SINGLE LEFT-POINTING ANGLE QUOTATION MARK 0x0152, // LATIN CAPITAL LIGATURE OE 0xFFFD, // NOT USED 0x017D, // LATIN CAPITAL LETTER Z WITH CARON 0xFFFD, // NOT USED 0xFFFD, // NOT USED 0x2018, // LEFT SINGLE QUOTATION MARK 0x2019, // RIGHT SINGLE QUOTATION MARK 0x201C, // LEFT DOUBLE QUOTATION MARK 0x201D, // RIGHT DOUBLE QUOTATION MARK 0x2022, // BULLET 0x2013, // EN DASH 0x2014, // EM DASH 0x02DC, // SMALL TILDE 0x2122, // TRADE MARK SIGN 0x0161, // LATIN SMALL LETTER S WITH CARON 0x203A, // SINGLE RIGHT-POINTING ANGLE QUOTATION MARK 0x0153, // LATIN SMALL LIGATURE OE 0xFFFD, // NOT USED 0x017E, // LATIN SMALL LETTER Z WITH CARON 0x0178, // LATIN CAPITAL LETTER Y WITH DIAERESIS }; static bool __CFFromWinLatin1(uint32_t flags, uint8_t byte, UniChar *character) { *character = (byte < 0x80 || byte > 0x9F ? (UniChar)byte : cp1252_to_uni[byte - 0x80]); return (*character != 0xFFFD); } static CFIndex __CFToWinLatin1Precompose(uint32_t flags, const UniChar *character, CFIndex numChars, uint8_t *bytes, CFIndex maxByteLen, CFIndex *usedByteLen) { uint8_t byte; CFIndex usedCharLen; if (__CFToWinLatin1(flags, CFStringEncodingPrecomposeLatinCharacter(character, numChars, &usedCharLen), &byte) && byte && (usedCharLen > 1)) { if (maxByteLen) *bytes = byte; *usedByteLen = 1; return usedCharLen; } else { return 0; } } CF_PRIVATE const CFStringEncodingConverter __CFConverterWinLatin1 = { __CFToWinLatin1, __CFFromWinLatin1, 1, 1, kCFStringEncodingConverterCheapEightBit, NULL, NULL, NULL, NULL, __CFToWinLatin1Precompose, CFStringEncodingIsValidCombiningCharacterForLatin1, }; /* NEXTSTEP Encoding */ #define NUM_NEXTSTEP_FROM_UNI 127 static const CFStringEncodingUnicodeTo8BitCharMap nextstep_from_tab[NUM_NEXTSTEP_FROM_UNI] = { { 0x00a0, 0x80 }, { 0x00a1, 0xa1 }, { 0x00a2, 0xa2 }, { 0x00a3, 0xa3 }, { 0x00a4, 0xa8 }, { 0x00a5, 0xa5 }, { 0x00a6, 0xb5 }, { 0x00a7, 0xa7 }, { 0x00a8, 0xc8 }, { 0x00a9, 0xa0 }, { 0x00aa, 0xe3 }, { 0x00ab, 0xab }, { 0x00ac, 0xbe }, /* { 0x00ad, 0x2d }, <= 96/10/25 rick removed; converts soft-hyphen to hyphen! */ { 0x00ae, 0xb0 }, { 0x00af, 0xc5 }, { 0x00b1, 0xd1 }, { 0x00b2, 0xc9 }, { 0x00b3, 0xcc }, { 0x00b4, 0xc2 }, { 0x00b5, 0x9d }, { 0x00b6, 0xb6 }, { 0x00b7, 0xb4 }, { 0x00b8, 0xcb }, { 0x00b9, 0xc0 }, { 0x00ba, 0xeb }, { 0x00bb, 0xbb }, { 0x00bc, 0xd2 }, { 0x00bd, 0xd3 }, { 0x00be, 0xd4 }, { 0x00bf, 0xbf }, { 0x00c0, 0x81 }, { 0x00c1, 0x82 }, { 0x00c2, 0x83 }, { 0x00c3, 0x84 }, { 0x00c4, 0x85 }, { 0x00c5, 0x86 }, { 0x00c6, 0xe1 }, { 0x00c7, 0x87 }, { 0x00c8, 0x88 }, { 0x00c9, 0x89 }, { 0x00ca, 0x8a }, { 0x00cb, 0x8b }, { 0x00cc, 0x8c }, { 0x00cd, 0x8d }, { 0x00ce, 0x8e }, { 0x00cf, 0x8f }, { 0x00d0, 0x90 }, { 0x00d1, 0x91 }, { 0x00d2, 0x92 }, { 0x00d3, 0x93 }, { 0x00d4, 0x94 }, { 0x00d5, 0x95 }, { 0x00d6, 0x96 }, { 0x00d7, 0x9e }, { 0x00d8, 0xe9 }, { 0x00d9, 0x97 }, { 0x00da, 0x98 }, { 0x00db, 0x99 }, { 0x00dc, 0x9a }, { 0x00dd, 0x9b }, { 0x00de, 0x9c }, { 0x00df, 0xfb }, { 0x00e0, 0xd5 }, { 0x00e1, 0xd6 }, { 0x00e2, 0xd7 }, { 0x00e3, 0xd8 }, { 0x00e4, 0xd9 }, { 0x00e5, 0xda }, { 0x00e6, 0xf1 }, { 0x00e7, 0xdb }, { 0x00e8, 0xdc }, { 0x00e9, 0xdd }, { 0x00ea, 0xde }, { 0x00eb, 0xdf }, { 0x00ec, 0xe0 }, { 0x00ed, 0xe2 }, { 0x00ee, 0xe4 }, { 0x00ef, 0xe5 }, { 0x00f0, 0xe6 }, { 0x00f1, 0xe7 }, { 0x00f2, 0xec }, { 0x00f3, 0xed }, { 0x00f4, 0xee }, { 0x00f5, 0xef }, { 0x00f6, 0xf0 }, { 0x00f7, 0x9f }, { 0x00f8, 0xf9 }, { 0x00f9, 0xf2 }, { 0x00fa, 0xf3 }, { 0x00fb, 0xf4 }, { 0x00fc, 0xf6 }, { 0x00fd, 0xf7 }, { 0x00fe, 0xfc }, { 0x00ff, 0xfd }, { 0x0131, 0xf5 }, { 0x0141, 0xe8 }, { 0x0142, 0xf8 }, { 0x0152, 0xea }, { 0x0153, 0xfa }, { 0x0192, 0xa6 }, { 0x02c6, 0xc3 }, { 0x02c7, 0xcf }, { 0x02cb, 0xc1 }, { 0x02d8, 0xc6 }, { 0x02d9, 0xc7 }, { 0x02da, 0xca }, { 0x02db, 0xce }, { 0x02dc, 0xc4 }, { 0x02dd, 0xcd }, { 0x2013, 0xb1 }, { 0x2014, 0xd0 }, { 0x2019, 0xa9 }, { 0x201a, 0xb8 }, { 0x201c, 0xaa }, { 0x201d, 0xba }, { 0x201e, 0xb9 }, { 0x2020, 0xb2 }, { 0x2021, 0xb3 }, { 0x2022, 0xb7 }, { 0x2026, 0xbc }, { 0x2030, 0xbd }, { 0x2039, 0xac }, { 0x203a, 0xad }, { 0x2044, 0xa4 }, { 0xfb01, 0xae }, { 0xfb02, 0xaf }, { 0xfffd, 0xff }, }; static bool __CFToNextStepLatin(uint32_t flags, UniChar character, uint8_t *byte) { if (character < 0x80) { *byte = (uint8_t)character; return true; } else if (__CFIsParagraphSeparator(character)) { *byte = ASCIINewLine; return true; } else { return CFStringEncodingUnicodeTo8BitEncoding(nextstep_from_tab, NUM_NEXTSTEP_FROM_UNI, character, byte); } }; static const UniChar NSToPrecompUnicodeTable[128] = { /* NextStep Encoding Unicode */ /* 128 figspace */ 0x00a0, /* 0x2007 is fig space */ /* 129 Agrave */ 0x00c0, /* 130 Aacute */ 0x00c1, /* 131 Acircumflex */ 0x00c2, /* 132 Atilde */ 0x00c3, /* 133 Adieresis */ 0x00c4, /* 134 Aring */ 0x00c5, /* 135 Ccedilla */ 0x00c7, /* 136 Egrave */ 0x00c8, /* 137 Eacute */ 0x00c9, /* 138 Ecircumflex */ 0x00ca, /* 139 Edieresis */ 0x00cb, /* 140 Igrave */ 0x00cc, /* 141 Iacute */ 0x00cd, /* 142 Icircumflex */ 0x00ce, /* 143 Idieresis */ 0x00cf, /* 144 Eth */ 0x00d0, /* 145 Ntilde */ 0x00d1, /* 146 Ograve */ 0x00d2, /* 147 Oacute */ 0x00d3, /* 148 Ocircumflex */ 0x00d4, /* 149 Otilde */ 0x00d5, /* 150 Odieresis */ 0x00d6, /* 151 Ugrave */ 0x00d9, /* 152 Uacute */ 0x00da, /* 153 Ucircumflex */ 0x00db, /* 154 Udieresis */ 0x00dc, /* 155 Yacute */ 0x00dd, /* 156 Thorn */ 0x00de, /* 157 mu */ 0x00b5, /* 158 multiply */ 0x00d7, /* 159 divide */ 0x00f7, /* 160 copyright */ 0x00a9, /* 161 exclamdown */ 0x00a1, /* 162 cent */ 0x00a2, /* 163 sterling */ 0x00a3, /* 164 fraction */ 0x2044, /* 165 yen */ 0x00a5, /* 166 florin */ 0x0192, /* 167 section */ 0x00a7, /* 168 currency */ 0x00a4, /* 169 quotesingle */ 0x2019, /* 170 quotedblleft */ 0x201c, /* 171 guillemotleft */ 0x00ab, /* 172 guilsinglleft */ 0x2039, /* 173 guilsinglright */ 0x203a, /* 174 fi */ 0xFB01, /* 175 fl */ 0xFB02, /* 176 registered */ 0x00ae, /* 177 endash */ 0x2013, /* 178 dagger */ 0x2020, /* 179 daggerdbl */ 0x2021, /* 180 periodcentered */ 0x00b7, /* 181 brokenbar */ 0x00a6, /* 182 paragraph */ 0x00b6, /* 183 bullet */ 0x2022, /* 184 quotesinglbase */ 0x201a, /* 185 quotedblbase */ 0x201e, /* 186 quotedblright */ 0x201d, /* 187 guillemotright */ 0x00bb, /* 188 ellipsis */ 0x2026, /* 189 perthousand */ 0x2030, /* 190 logicalnot */ 0x00ac, /* 191 questiondown */ 0x00bf, /* 192 onesuperior */ 0x00b9, /* 193 grave */ 0x02cb, /* 194 acute */ 0x00b4, /* 195 circumflex */ 0x02c6, /* 196 tilde */ 0x02dc, /* 197 macron */ 0x00af, /* 198 breve */ 0x02d8, /* 199 dotaccent */ 0x02d9, /* 200 dieresis */ 0x00a8, /* 201 twosuperior */ 0x00b2, /* 202 ring */ 0x02da, /* 203 cedilla */ 0x00b8, /* 204 threesuperior */ 0x00b3, /* 205 hungarumlaut */ 0x02dd, /* 206 ogonek */ 0x02db, /* 207 caron */ 0x02c7, /* 208 emdash */ 0x2014, /* 209 plusminus */ 0x00b1, /* 210 onequarter */ 0x00bc, /* 211 onehalf */ 0x00bd, /* 212 threequarters */ 0x00be, /* 213 agrave */ 0x00e0, /* 214 aacute */ 0x00e1, /* 215 acircumflex */ 0x00e2, /* 216 atilde */ 0x00e3, /* 217 adieresis */ 0x00e4, /* 218 aring */ 0x00e5, /* 219 ccedilla */ 0x00e7, /* 220 egrave */ 0x00e8, /* 221 eacute */ 0x00e9, /* 222 ecircumflex */ 0x00ea, /* 223 edieresis */ 0x00eb, /* 224 igrave */ 0x00ec, /* 225 AE */ 0x00c6, /* 226 iacute */ 0x00ed, /* 227 ordfeminine */ 0x00aa, /* 228 icircumflex */ 0x00ee, /* 229 idieresis */ 0x00ef, /* 230 eth */ 0x00f0, /* 231 ntilde */ 0x00f1, /* 232 Lslash */ 0x0141, /* 233 Oslash */ 0x00d8, /* 234 OE */ 0x0152, /* 235 ordmasculine */ 0x00ba, /* 236 ograve */ 0x00f2, /* 237 oacute */ 0x00f3, /* 238 ocircumflex */ 0x00f4, /* 239 otilde */ 0x00f5, /* 240 odieresis */ 0x00f6, /* 241 ae */ 0x00e6, /* 242 ugrave */ 0x00f9, /* 243 uacute */ 0x00fa, /* 244 ucircumflex */ 0x00fb, /* 245 dotlessi */ 0x0131, /* 246 udieresis */ 0x00fc, /* 247 yacute */ 0x00fd, /* 248 lslash */ 0x0142, /* 249 oslash */ 0x00f8, /* 250 oe */ 0x0153, /* 251 germandbls */ 0x00df, /* 252 thorn */ 0x00fe, /* 253 ydieresis */ 0x00ff, /* 254 .notdef */ 0xFFFD, /* 255 .notdef */ 0xFFFD }; static bool __CFFromNextStepLatin(uint32_t flags, uint8_t byte, UniChar *character) { return ((*character = (byte < 0x80 ? (UniChar)byte : NSToPrecompUnicodeTable[byte - 0x80])) != 0xFFFD); } static CFIndex __CFToNextStepLatinPrecompose(uint32_t flags, const UniChar *character, CFIndex numChars, uint8_t *bytes, CFIndex maxByteLen, CFIndex *usedByteLen) { uint8_t byte; CFIndex usedCharLen; if (__CFToNextStepLatin(flags, CFStringEncodingPrecomposeLatinCharacter(character, numChars, &usedCharLen), &byte) && byte && (usedCharLen > 1)) { if (maxByteLen) *bytes = byte; *usedByteLen = 1; return usedCharLen; } else { return 0; } } CF_PRIVATE const CFStringEncodingConverter __CFConverterNextStepLatin = { __CFToNextStepLatin, __CFFromNextStepLatin, 1, 1, kCFStringEncodingConverterCheapEightBit, NULL, NULL, NULL, NULL, __CFToNextStepLatinPrecompose, CFStringEncodingIsValidCombiningCharacterForLatin1, }; /* UTF8 */ /* * Copyright 2001 Unicode, Inc. * * Disclaimer * * This source code is provided as is by Unicode, Inc. No claims are * made as to fitness for any particular purpose. No warranties of any * kind are expressed or implied. The recipient agrees to determine * applicability of information provided. If this file has been * purchased on magnetic or optical media from Unicode, Inc., the * sole remedy for any claim will be exchange of defective media * within 90 days of receipt. * * Limitations on Rights to Redistribute This Code * * Unicode, Inc. hereby grants the right to freely use the information * supplied in this file in the creation of products supporting the * Unicode Standard, and to make copies of this file in any form * for internal or external distribution as long as this notice * remains attached. */ static const uint32_t kReplacementCharacter = 0x0000FFFDUL; static const uint32_t kMaximumUCS2 = 0x0000FFFFUL; static const uint32_t kMaximumUTF16 = 0x0010FFFFUL; static const uint32_t kMaximumUCS4 = 0x7FFFFFFFUL; static const int halfShift = 10; static const uint32_t halfBase = 0x0010000UL; static const uint32_t halfMask = 0x3FFUL; static const uint32_t kSurrogateHighStart = 0xD800UL; static const uint32_t kSurrogateHighEnd = 0xDBFFUL; static const uint32_t kSurrogateLowStart = 0xDC00UL; static const uint32_t kSurrogateLowEnd = 0xDFFFUL; /* * Index into the table below with the first byte of a UTF-8 sequence to * get the number of trailing bytes that are supposed to follow it. */ static const char trailingBytesForUTF8[256] = { 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, 1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1, 1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1, 2,2,2,2,2,2,2,2,2,2,2,2,2,2,2,2, 3,3,3,3,3,3,3,3,4,4,4,4,5,5,5,5 }; /* * Magic values subtracted from a buffer value during UTF8 conversion. * This table contains as many values as there might be trailing bytes * in a UTF-8 sequence. */ static const UTF32Char offsetsFromUTF8[6] = { 0x00000000UL, 0x00003080UL, 0x000E2080UL, 0x03C82080UL, 0xFA082080UL, 0x82082080UL }; static const uint8_t firstByteMark[7] = { 0x00, 0x00, 0xC0, 0xE0, 0xF0, 0xF8, 0xFC }; /* This code is similar in effect to making successive calls on the mbtowc and wctomb routines in FSS-UTF. However, it is considerably different in code: * it is adapted to be consistent with UTF16, * constants have been gathered. * loops & conditionals have been removed as much as possible for * efficiency, in favor of drop-through switch statements. */ CF_INLINE uint16_t __CFUTF8BytesToWriteForCharacter(uint32_t ch) { if (ch < 0x80) return 1; else if (ch < 0x800) return 2; else if (ch < 0x10000) return 3; else if (ch < 0x200000) return 4; else if (ch < 0x4000000) return 5; else if (ch <= kMaximumUCS4) return 6; else return 0; } CF_INLINE uint16_t __CFToUTF8Core(uint32_t ch, uint8_t *bytes, uint32_t maxByteLen) { uint16_t bytesToWrite = __CFUTF8BytesToWriteForCharacter(ch); const uint32_t byteMask = 0xBF; const uint32_t byteMark = 0x80; if (!bytesToWrite) { bytesToWrite = 2; ch = kReplacementCharacter; } if (maxByteLen < bytesToWrite) return 0; switch (bytesToWrite) { /* note: code falls through cases! */ case 6: bytes[5] = (ch | byteMark) & byteMask; ch >>= 6; case 5: bytes[4] = (ch | byteMark) & byteMask; ch >>= 6; case 4: bytes[3] = (ch | byteMark) & byteMask; ch >>= 6; case 3: bytes[2] = (ch | byteMark) & byteMask; ch >>= 6; case 2: bytes[1] = (ch | byteMark) & byteMask; ch >>= 6; case 1: bytes[0] = ch | firstByteMark[bytesToWrite]; } return bytesToWrite; } static CFIndex __CFToUTF8(uint32_t flags, const UniChar *characters, CFIndex numChars, uint8_t *bytes, CFIndex maxByteLen, CFIndex *usedByteLen) { uint16_t bytesWritten; uint32_t ch; const UniChar *beginCharacter = characters; const UniChar *endCharacter = characters + numChars; const uint8_t *beginBytes = bytes; const uint8_t *endBytes = bytes + maxByteLen; bool isStrict = (flags & kCFStringEncodingUseHFSPlusCanonical ? false : true); while ((characters < endCharacter) && (!maxByteLen || (bytes < endBytes))) { ch = *(characters++); if (ch < 0x80) { // ASCII if (maxByteLen) *bytes = ch; ++bytes; } else { if (ch >= kSurrogateHighStart) { if (ch <= kSurrogateHighEnd) { if ((characters < endCharacter) && ((*characters >= kSurrogateLowStart) && (*characters <= kSurrogateLowEnd))) { ch = ((ch - kSurrogateHighStart) << halfShift) + (*(characters++) - kSurrogateLowStart) + halfBase; } else if (isStrict) { --characters; break; } } else if (isStrict && (ch <= kSurrogateLowEnd)) { --characters; break; } } if (!(bytesWritten = (maxByteLen ? __CFToUTF8Core(ch, bytes, endBytes - bytes) : __CFUTF8BytesToWriteForCharacter(ch)))) { characters -= (ch < 0x10000 ? 1 : 2); break; } bytes += bytesWritten; } } if (usedByteLen) *usedByteLen = bytes - beginBytes; return characters - beginCharacter; } /* * Utility routine to tell whether a sequence of bytes is legal UTF-8. * This must be called with the length pre-determined by the first byte. * If not calling this from ConvertUTF8to*, then the length can be set by: * length = trailingBytesForUTF8[*source]+1; * and the sequence is illegal right away if there aren't that many bytes * available. * If presented with a length > 4, this returns false. The Unicode * definition of UTF-8 goes up to 4-byte sequences. */ CF_INLINE bool __CFIsLegalUTF8(const uint8_t *source, CFIndex length) { if (length > 4) return false; const uint8_t *srcptr = source+length; uint8_t head = *source; while (--srcptr > source) if ((*srcptr & 0xC0) != 0x80) return false; if (((head >= 0x80) && (head < 0xC2)) || (head > 0xF4)) return false; if (((head == 0xE0) && (*(source + 1) < 0xA0)) || ((head == 0xED) && (*(source + 1) > 0x9F)) || ((head == 0xF0) && (*(source + 1) < 0x90)) || ((head == 0xF4) && (*(source + 1) > 0x8F))) return false; return true; } static CFIndex __CFFromUTF8(uint32_t flags, const uint8_t *bytes, CFIndex numBytes, UniChar *characters, CFIndex maxCharLen, CFIndex *usedCharLen) { const uint8_t *source = bytes; uint16_t extraBytesToRead; CFIndex theUsedCharLen = 0; uint32_t ch; bool isHFSPlus = (flags & kCFStringEncodingUseHFSPlusCanonical ? true : false); bool needsToDecompose = (flags & kCFStringEncodingUseCanonical || isHFSPlus ? true : false); bool strictUTF8 = (flags & kCFStringEncodingLenientUTF8Conversion ? false : true); UTF32Char decomposed[MAX_DECOMPOSED_LENGTH]; CFIndex decompLength; bool isStrict = !isHFSPlus; while (numBytes && (!maxCharLen || (theUsedCharLen < maxCharLen))) { extraBytesToRead = trailingBytesForUTF8[*source]; if (extraBytesToRead > --numBytes) break; numBytes -= extraBytesToRead; /* Do this check whether lenient or strict */ // We need to allow 0xA9 (copyright in MacRoman and Unicode) not to break existing apps // Will use a flag passed in from upper layers to switch restriction mode for this case in the next release if ((extraBytesToRead > 3) || (strictUTF8 && !__CFIsLegalUTF8(source, extraBytesToRead + 1))) { if ((*source == 0xA9) || (flags & kCFStringEncodingAllowLossyConversion)) { numBytes += extraBytesToRead; ++source; if (maxCharLen) *(characters++) = (UTF16Char)kReplacementCharacter; ++theUsedCharLen; continue; } else { break; } } ch = 0; /* * The cases all fall through. See "Note A" below. */ switch (extraBytesToRead) { case 3: ch += *source++; ch <<= 6; case 2: ch += *source++; ch <<= 6; case 1: ch += *source++; ch <<= 6; case 0: ch += *source++; } ch -= offsetsFromUTF8[extraBytesToRead]; if (ch <= kMaximumUCS2) { if (isStrict && (ch >= kSurrogateHighStart && ch <= kSurrogateLowEnd)) { source -= (extraBytesToRead + 1); break; } if (needsToDecompose && CFUniCharIsDecomposableCharacter(ch, isHFSPlus)) { decompLength = CFUniCharDecomposeCharacter(ch, decomposed, MAX_DECOMPOSED_LENGTH); if (maxCharLen) { if (!CFUniCharFillDestinationBuffer(decomposed, decompLength, (void **)&characters, maxCharLen, &theUsedCharLen, kCFUniCharUTF16Format)) break; } else { theUsedCharLen += decompLength; } } else { if (maxCharLen) *(characters++) = (UTF16Char)ch; ++theUsedCharLen; } } else if (ch > kMaximumUTF16) { if (isStrict) { source -= (extraBytesToRead + 1); break; } if (maxCharLen) *(characters++) = (UTF16Char)kReplacementCharacter; ++theUsedCharLen; } else { if (needsToDecompose && CFUniCharIsDecomposableCharacter(ch, isHFSPlus)) { decompLength = CFUniCharDecomposeCharacter(ch, decomposed, MAX_DECOMPOSED_LENGTH); if (maxCharLen) { if (!CFUniCharFillDestinationBuffer(decomposed, decompLength, (void **)&characters, maxCharLen, &theUsedCharLen, kCFUniCharUTF16Format)) break; } else { while (--decompLength >= 0) theUsedCharLen += (decomposed[decompLength] < 0x10000 ? 1 : 2); } } else { if (maxCharLen) { if ((theUsedCharLen + 2) > maxCharLen) break; ch -= halfBase; *(characters++) = (ch >> halfShift) + kSurrogateHighStart; *(characters++) = (ch & halfMask) + kSurrogateLowStart; } theUsedCharLen += 2; } } } if (usedCharLen) *usedCharLen = theUsedCharLen; return source - bytes; } static CFIndex __CFToUTF8Len(uint32_t flags, const UniChar *characters, CFIndex numChars) { uint32_t bytesToWrite = 0; uint32_t ch; while (numChars) { ch = *characters++; numChars--; if ((ch >= kSurrogateHighStart && ch <= kSurrogateHighEnd) && numChars && (*characters >= kSurrogateLowStart && *characters <= kSurrogateLowEnd)) { ch = ((ch - kSurrogateHighStart) << halfShift) + (*characters++ - kSurrogateLowStart) + halfBase; numChars--; } bytesToWrite += __CFUTF8BytesToWriteForCharacter(ch); } return bytesToWrite; } static CFIndex __CFFromUTF8Len(uint32_t flags, const uint8_t *source, CFIndex numBytes) { uint16_t extraBytesToRead; CFIndex theUsedCharLen = 0; uint32_t ch; bool isHFSPlus = (flags & kCFStringEncodingUseHFSPlusCanonical ? true : false); bool needsToDecompose = (flags & kCFStringEncodingUseCanonical || isHFSPlus ? true : false); bool strictUTF8 = (flags & kCFStringEncodingLenientUTF8Conversion ? false : true); UTF32Char decomposed[MAX_DECOMPOSED_LENGTH]; CFIndex decompLength; bool isStrict = !isHFSPlus; while (numBytes) { extraBytesToRead = trailingBytesForUTF8[*source]; if (extraBytesToRead > --numBytes) break; numBytes -= extraBytesToRead; /* Do this check whether lenient or strict */ // We need to allow 0xA9 (copyright in MacRoman and Unicode) not to break existing apps // Will use a flag passed in from upper layers to switch restriction mode for this case in the next release if ((extraBytesToRead > 3) || (strictUTF8 && !__CFIsLegalUTF8(source, extraBytesToRead + 1))) { if ((*source == 0xA9) || (flags & kCFStringEncodingAllowLossyConversion)) { numBytes += extraBytesToRead; ++source; ++theUsedCharLen; continue; } else { break; } } ch = 0; /* * The cases all fall through. See "Note A" below. */ switch (extraBytesToRead) { case 3: ch += *source++; ch <<= 6; case 2: ch += *source++; ch <<= 6; case 1: ch += *source++; ch <<= 6; case 0: ch += *source++; } ch -= offsetsFromUTF8[extraBytesToRead]; if (ch <= kMaximumUCS2) { if (isStrict && (ch >= kSurrogateHighStart && ch <= kSurrogateLowEnd)) { break; } if (needsToDecompose && CFUniCharIsDecomposableCharacter(ch, isHFSPlus)) { decompLength = CFUniCharDecomposeCharacter(ch, decomposed, MAX_DECOMPOSED_LENGTH); theUsedCharLen += decompLength; } else { ++theUsedCharLen; } } else if (ch > kMaximumUTF16) { ++theUsedCharLen; } else { if (needsToDecompose && CFUniCharIsDecomposableCharacter(ch, isHFSPlus)) { decompLength = CFUniCharDecomposeCharacter(ch, decomposed, MAX_DECOMPOSED_LENGTH); while (--decompLength >= 0) theUsedCharLen += (decomposed[decompLength] < 0x10000 ? 1 : 2); } else { theUsedCharLen += 2; } } } return theUsedCharLen; } CF_PRIVATE const CFStringEncodingConverter __CFConverterUTF8 = { __CFToUTF8, __CFFromUTF8, 3, 2, kCFStringEncodingConverterStandard, __CFToUTF8Len, __CFFromUTF8Len, NULL, NULL, NULL, NULL, };