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siliconforks |
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/* |
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encoding.c - character encoding |
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Copyright (C) 2008 siliconforks.com |
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This program is free software; you can redistribute it and/or modify |
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it under the terms of the GNU General Public License as published by |
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the Free Software Foundation; either version 2 of the License, or |
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(at your option) any later version. |
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This program is distributed in the hope that it will be useful, |
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but WITHOUT ANY WARRANTY; without even the implied warranty of |
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
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GNU General Public License for more details. |
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You should have received a copy of the GNU General Public License along |
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with this program; if not, write to the Free Software Foundation, Inc., |
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51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA. |
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*/ |
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#include <config.h> |
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#include "encoding.h" |
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#include <assert.h> |
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#include <string.h> |
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#ifdef HAVE_ICONV_H |
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#include <iconv.h> |
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#elif defined HAVE_WINDOWS_H |
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#include <windows.h> |
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#endif |
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#include "util.h" |
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static void skip_bom(jschar ** characters, size_t * num_characters) { |
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jschar * c = *characters; |
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size_t nc = *num_characters; |
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size_t i; |
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for (i = 0; i < nc; i++) { |
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if (c[i] != 0xfeff) { |
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break; |
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} |
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} |
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if (i == 0) { |
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return; |
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} |
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nc -= i; |
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jschar * old = c; |
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c = xnew(jschar, nc); |
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memcpy(c, old + i, nc * sizeof(jschar)); |
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free(old); |
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*characters = c; |
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*num_characters = nc; |
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} |
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#ifdef HAVE_ICONV |
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#ifdef WORDS_BIGENDIAN |
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#define UCS_2_INTERNAL "UCS-2BE" |
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#else |
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#define UCS_2_INTERNAL "UCS-2LE" |
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#endif |
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int jscoverage_bytes_to_characters(const char * encoding, const uint8_t * bytes, size_t num_bytes, jschar ** characters, size_t * num_characters) { |
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assert(encoding != NULL); |
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iconv_t state = iconv_open(UCS_2_INTERNAL, encoding); |
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if (state == (iconv_t) -1) { |
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return JSCOVERAGE_ERROR_ENCODING_NOT_SUPPORTED; |
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} |
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ICONV_CONST char * input = (char *) bytes; |
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size_t input_bytes_left = num_bytes; |
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jschar * c = xnew(jschar, num_bytes); |
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char * output = (char *) c; |
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size_t output_bytes_left = sizeof(jschar) * num_bytes; |
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size_t result = iconv(state, &input, &input_bytes_left, &output, &output_bytes_left); |
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siliconforks |
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iconv_close(state); |
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siliconforks |
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if (result == (size_t) -1) { |
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free(c); |
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return JSCOVERAGE_ERROR_INVALID_BYTE_SEQUENCE; |
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} |
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assert(input_bytes_left == 0); |
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size_t nc = ((jschar *) output) - c; |
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skip_bom(&c, &nc); |
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*characters = c; |
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*num_characters = nc; |
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return 0; |
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} |
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#elif HAVE_MULTIBYTETOWIDECHAR |
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/* http://msdn.microsoft.com/en-us/library/ms776446(VS.85).aspx */ |
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static struct CodePage { |
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UINT value; |
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LPCSTR string; |
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} code_pages[] = { |
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{37, "IBM037"}, /* IBM EBCDIC US-Canada */ |
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{437, "IBM437"}, /* OEM United States */ |
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{500, "IBM500"}, /* IBM EBCDIC International */ |
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{708, "ASMO-708"}, /* Arabic (ASMO 708) */ |
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{720, "DOS-720"}, /* Arabic (Transparent ASMO); Arabic (DOS) */ |
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{737, "ibm737"}, /* OEM Greek (formerly 437G); Greek (DOS) */ |
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{775, "ibm775"}, /* OEM Baltic; Baltic (DOS) */ |
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{850, "ibm850"}, /* OEM Multilingual Latin 1; Western European (DOS) */ |
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{852, "ibm852"}, /* OEM Latin 2; Central European (DOS) */ |
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{855, "IBM855"}, /* OEM Cyrillic (primarily Russian) */ |
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{857, "ibm857"}, /* OEM Turkish; Turkish (DOS) */ |
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{858, "IBM00858"}, /* OEM Multilingual Latin 1 + Euro symbol */ |
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{860, "IBM860"}, /* OEM Portuguese; Portuguese (DOS) */ |
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{861, "ibm861"}, /* OEM Icelandic; Icelandic (DOS) */ |
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{862, "DOS-862"}, /* OEM Hebrew; Hebrew (DOS) */ |
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{863, "IBM863"}, /* OEM French Canadian; French Canadian (DOS) */ |
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{864, "IBM864"}, /* OEM Arabic; Arabic (864) */ |
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{865, "IBM865"}, /* OEM Nordic; Nordic (DOS) */ |
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{866, "cp866"}, /* OEM Russian; Cyrillic (DOS) */ |
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{869, "ibm869"}, /* OEM Modern Greek; Greek, Modern (DOS) */ |
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{870, "IBM870"}, /* IBM EBCDIC Multilingual/ROECE (Latin 2); IBM EBCDIC Multilingual Latin 2 */ |
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{874, "windows-874"}, /* ANSI/OEM Thai (same as 28605, ISO 8859-15); Thai (Windows) */ |
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{875, "cp875"}, /* IBM EBCDIC Greek Modern */ |
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{932, "shift_jis"}, /* ANSI/OEM Japanese; Japanese (Shift-JIS) */ |
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{936, "gb2312"}, /* ANSI/OEM Simplified Chinese (PRC, Singapore); Chinese Simplified (GB2312) */ |
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{949, "ks_c_5601-1987"}, /* ANSI/OEM Korean (Unified Hangul Code) */ |
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{950, "big5"}, /* ANSI/OEM Traditional Chinese (Taiwan; Hong Kong SAR, PRC); Chinese Traditional (Big5) */ |
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{1026, "IBM1026"}, /* IBM EBCDIC Turkish (Latin 5) */ |
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{1047, "IBM01047"}, /* IBM EBCDIC Latin 1/Open System */ |
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{1140, "IBM01140"}, /* IBM EBCDIC US-Canada (037 + Euro symbol); IBM EBCDIC (US-Canada-Euro) */ |
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{1141, "IBM01141"}, /* IBM EBCDIC Germany (20273 + Euro symbol); IBM EBCDIC (Germany-Euro) */ |
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{1142, "IBM01142"}, /* IBM EBCDIC Denmark-Norway (20277 + Euro symbol); IBM EBCDIC (Denmark-Norway-Euro) */ |
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{1143, "IBM01143"}, /* IBM EBCDIC Finland-Sweden (20278 + Euro symbol); IBM EBCDIC (Finland-Sweden-Euro) */ |
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{1144, "IBM01144"}, /* IBM EBCDIC Italy (20280 + Euro symbol); IBM EBCDIC (Italy-Euro) */ |
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{1145, "IBM01145"}, /* IBM EBCDIC Latin America-Spain (20284 + Euro symbol); IBM EBCDIC (Spain-Euro) */ |
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{1146, "IBM01146"}, /* IBM EBCDIC United Kingdom (20285 + Euro symbol); IBM EBCDIC (UK-Euro) */ |
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{1147, "IBM01147"}, /* IBM EBCDIC France (20297 + Euro symbol); IBM EBCDIC (France-Euro) */ |
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{1148, "IBM01148"}, /* IBM EBCDIC International (500 + Euro symbol); IBM EBCDIC (International-Euro) */ |
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{1149, "IBM01149"}, /* IBM EBCDIC Icelandic (20871 + Euro symbol); IBM EBCDIC (Icelandic-Euro) */ |
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{1200, "utf-16"}, /* Unicode UTF-16, little endian byte order (BMP of ISO 10646); available only to managed applications */ |
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{1201, "unicodeFFFE"}, /* Unicode UTF-16, big endian byte order; available only to managed applications */ |
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{1250, "windows-1250"}, /* ANSI Central European; Central European (Windows) */ |
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{1251, "windows-1251"}, /* ANSI Cyrillic; Cyrillic (Windows) */ |
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{1252, "windows-1252"}, /* ANSI Latin 1; Western European (Windows) */ |
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{1253, "windows-1253"}, /* ANSI Greek; Greek (Windows) */ |
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{1254, "windows-1254"}, /* ANSI Turkish; Turkish (Windows) */ |
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{1255, "windows-1255"}, /* ANSI Hebrew; Hebrew (Windows) */ |
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{1256, "windows-1256"}, /* ANSI Arabic; Arabic (Windows) */ |
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{1257, "windows-1257"}, /* ANSI Baltic; Baltic (Windows) */ |
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{1258, "windows-1258"}, /* ANSI/OEM Vietnamese; Vietnamese (Windows) */ |
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{1361, "Johab"}, /* Korean (Johab) */ |
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{10000, "macintosh"}, /* MAC Roman; Western European (Mac) */ |
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{10001, "x-mac-japanese"}, /* Japanese (Mac) */ |
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{10002, "x-mac-chinesetrad"}, /* MAC Traditional Chinese (Big5); Chinese Traditional (Mac) */ |
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{10003, "x-mac-korean"}, /* Korean (Mac) */ |
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{10004, "x-mac-arabic"}, /* Arabic (Mac) */ |
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{10005, "x-mac-hebrew"}, /* Hebrew (Mac) */ |
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{10006, "x-mac-greek"}, /* Greek (Mac) */ |
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{10007, "x-mac-cyrillic"}, /* Cyrillic (Mac) */ |
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{10008, "x-mac-chinesesimp"}, /* MAC Simplified Chinese (GB 2312); Chinese Simplified (Mac) */ |
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{10010, "x-mac-romanian"}, /* Romanian (Mac) */ |
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{10017, "x-mac-ukrainian"}, /* Ukrainian (Mac) */ |
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{10021, "x-mac-thai"}, /* Thai (Mac) */ |
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{10029, "x-mac-ce"}, /* MAC Latin 2; Central European (Mac) */ |
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{10079, "x-mac-icelandic"}, /* Icelandic (Mac) */ |
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{10081, "x-mac-turkish"}, /* Turkish (Mac) */ |
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{10082, "x-mac-croatian"}, /* Croatian (Mac) */ |
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{12000, "utf-32"}, /* Unicode UTF-32, little endian byte order; available only to managed applications */ |
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{12001, "utf-32BE"}, /* Unicode UTF-32, big endian byte order; available only to managed applications */ |
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{20000, "x-Chinese_CNS"}, /* CNS Taiwan; Chinese Traditional (CNS) */ |
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{20001, "x-cp20001"}, /* TCA Taiwan */ |
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{20002, "x_Chinese-Eten"}, /* Eten Taiwan; Chinese Traditional (Eten) */ |
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{20003, "x-cp20003"}, /* IBM5550 Taiwan */ |
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{20004, "x-cp20004"}, /* TeleText Taiwan */ |
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{20005, "x-cp20005"}, /* Wang Taiwan */ |
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{20105, "x-IA5"}, /* IA5 (IRV International Alphabet No. 5, 7-bit); Western European (IA5) */ |
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{20106, "x-IA5-German"}, /* IA5 German (7-bit) */ |
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{20107, "x-IA5-Swedish"}, /* IA5 Swedish (7-bit) */ |
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{20108, "x-IA5-Norwegian"}, /* IA5 Norwegian (7-bit) */ |
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{20127, "us-ascii"}, /* US-ASCII (7-bit) */ |
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{20261, "x-cp20261"}, /* T.61 */ |
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{20269, "x-cp20269"}, /* ISO 6937 Non-Spacing Accent */ |
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{20273, "IBM273"}, /* IBM EBCDIC Germany */ |
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{20277, "IBM277"}, /* IBM EBCDIC Denmark-Norway */ |
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{20278, "IBM278"}, /* IBM EBCDIC Finland-Sweden */ |
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{20280, "IBM280"}, /* IBM EBCDIC Italy */ |
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{20284, "IBM284"}, /* IBM EBCDIC Latin America-Spain */ |
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{20285, "IBM285"}, /* IBM EBCDIC United Kingdom */ |
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{20290, "IBM290"}, /* IBM EBCDIC Japanese Katakana Extended */ |
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{20297, "IBM297"}, /* IBM EBCDIC France */ |
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{20420, "IBM420"}, /* IBM EBCDIC Arabic */ |
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{20423, "IBM423"}, /* IBM EBCDIC Greek */ |
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{20424, "IBM424"}, /* IBM EBCDIC Hebrew */ |
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{20833, "x-EBCDIC-KoreanExtended"}, /* IBM EBCDIC Korean Extended */ |
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{20838, "IBM-Thai"}, /* IBM EBCDIC Thai */ |
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{20866, "koi8-r"}, /* Russian (KOI8-R); Cyrillic (KOI8-R) */ |
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{20871, "IBM871"}, /* IBM EBCDIC Icelandic */ |
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{20880, "IBM880"}, /* IBM EBCDIC Cyrillic Russian */ |
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{20905, "IBM905"}, /* IBM EBCDIC Turkish */ |
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{20924, "IBM00924"}, /* IBM EBCDIC Latin 1/Open System (1047 + Euro symbol) */ |
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{20932, "EUC-JP"}, /* Japanese (JIS 0208-1990 and 0121-1990) */ |
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{20936, "x-cp20936"}, /* Simplified Chinese (GB2312); Chinese Simplified (GB2312-80) */ |
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{20949, "x-cp20949"}, /* Korean Wansung */ |
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{21025, "cp1025"}, /* IBM EBCDIC Cyrillic Serbian-Bulgarian */ |
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{21866, "koi8-u"}, /* Ukrainian (KOI8-U); Cyrillic (KOI8-U) */ |
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{28591, "iso-8859-1"}, /* ISO 8859-1 Latin 1; Western European (ISO) */ |
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{28592, "iso-8859-2"}, /* ISO 8859-2 Central European; Central European (ISO) */ |
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{28593, "iso-8859-3"}, /* ISO 8859-3 Latin 3 */ |
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{28594, "iso-8859-4"}, /* ISO 8859-4 Baltic */ |
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{28595, "iso-8859-5"}, /* ISO 8859-5 Cyrillic */ |
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{28596, "iso-8859-6"}, /* ISO 8859-6 Arabic */ |
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{28597, "iso-8859-7"}, /* ISO 8859-7 Greek */ |
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{28598, "iso-8859-8"}, /* ISO 8859-8 Hebrew; Hebrew (ISO-Visual) */ |
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{28599, "iso-8859-9"}, /* ISO 8859-9 Turkish */ |
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{28603, "iso-8859-13"}, /* ISO 8859-13 Estonian */ |
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{28605, "iso-8859-15"}, /* ISO 8859-15 Latin 9 */ |
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{29001, "x-Europa"}, /* Europa 3 */ |
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{38598, "iso-8859-8-i"}, /* ISO 8859-8 Hebrew; Hebrew (ISO-Logical) */ |
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{50220, "iso-2022-jp"}, /* ISO 2022 Japanese with no halfwidth Katakana; Japanese (JIS) */ |
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{50221, "csISO2022JP"}, /* ISO 2022 Japanese with halfwidth Katakana; Japanese (JIS-Allow 1 byte Kana) */ |
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{50222, "iso-2022-jp"}, /* ISO 2022 Japanese JIS X 0201-1989; Japanese (JIS-Allow 1 byte Kana - SO/SI) */ |
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{50225, "iso-2022-kr"}, /* ISO 2022 Korean */ |
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{50227, "x-cp50227"}, /* ISO 2022 Simplified Chinese; Chinese Simplified (ISO 2022) */ |
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{51932, "euc-jp"}, /* EUC Japanese */ |
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{51936, "EUC-CN"}, /* EUC Simplified Chinese; Chinese Simplified (EUC) */ |
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{51949, "euc-kr"}, /* EUC Korean */ |
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{52936, "hz-gb-2312"}, /* HZ-GB2312 Simplified Chinese; Chinese Simplified (HZ) */ |
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{54936, "GB18030"}, /* Windows XP and later: GB18030 Simplified Chinese (4 byte); Chinese Simplified (GB18030) */ |
| 236 |
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{57002, "x-iscii-de"}, /* ISCII Devanagari */ |
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{57003, "x-iscii-be"}, /* ISCII Bengali */ |
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{57004, "x-iscii-ta"}, /* ISCII Tamil */ |
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{57005, "x-iscii-te"}, /* ISCII Telugu */ |
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{57006, "x-iscii-as"}, /* ISCII Assamese */ |
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{57007, "x-iscii-or"}, /* ISCII Oriya */ |
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{57008, "x-iscii-ka"}, /* ISCII Kannada */ |
| 243 |
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{57009, "x-iscii-ma"}, /* ISCII Malayalam */ |
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{57010, "x-iscii-gu"}, /* ISCII Gujarati */ |
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{57011, "x-iscii-pa"}, /* ISCII Punjabi */ |
| 246 |
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{65000, "utf-7"}, /* Unicode (UTF-7) */ |
| 247 |
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{65001, "utf-8"}, /* Unicode (UTF-8) */ |
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}; |
| 249 |
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| 250 |
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int find_code_page(const char * encoding, UINT * code_page) { |
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for (size_t i = 0; i < sizeof(code_pages) / sizeof(code_pages[0]); i++) { |
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if (strcasecmp(encoding, code_pages[i].string) == 0) { |
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*code_page = code_pages[i].value; |
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return 0; |
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} |
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} |
| 257 |
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return -1; |
| 258 |
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} |
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int jscoverage_bytes_to_characters(const char * encoding, const uint8_t * bytes, size_t num_bytes, jschar ** characters, size_t * num_characters) { |
| 261 |
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assert(encoding != NULL); |
| 262 |
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|
| 263 |
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if (num_bytes == 0) { |
| 264 |
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*characters = xnew(jschar, 0); |
| 265 |
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*num_characters = 0; |
| 266 |
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return 0; |
| 267 |
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} |
| 268 |
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| 269 |
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UINT code_page; |
| 270 |
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if (find_code_page(encoding, &code_page) != 0) { |
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return JSCOVERAGE_ERROR_ENCODING_NOT_SUPPORTED; |
| 272 |
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} |
| 273 |
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| 274 |
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if (num_bytes > INT_MAX) { |
| 275 |
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fatal("overflow"); |
| 276 |
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} |
| 277 |
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| 278 |
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*characters = xnew(jschar, num_bytes); |
| 279 |
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|
| 280 |
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int result = MultiByteToWideChar(code_page, 0, bytes, num_bytes, *characters, num_bytes); |
| 281 |
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if (result == 0) { |
| 282 |
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|
free(*characters); |
| 283 |
|
|
return JSCOVERAGE_ERROR_INVALID_BYTE_SEQUENCE; |
| 284 |
|
|
} |
| 285 |
|
|
|
| 286 |
|
|
*num_characters = result; |
| 287 |
|
|
skip_bom(characters, num_characters); |
| 288 |
|
|
return 0; |
| 289 |
|
|
} |
| 290 |
|
|
|
| 291 |
|
|
#else |
| 292 |
|
|
|
| 293 |
|
|
int jscoverage_bytes_to_characters(const char * encoding, const uint8_t * bytes, size_t num_bytes, jschar ** characters, size_t * num_characters) { |
| 294 |
|
|
assert(encoding != NULL); |
| 295 |
|
|
|
| 296 |
|
|
if (strcasecmp(encoding, "us-ascii") != 0 && strcasecmp(encoding, "iso-8859-1") != 0 && strcasecmp(encoding, "utf-8") != 0) { |
| 297 |
|
|
return JSCOVERAGE_ERROR_ENCODING_NOT_SUPPORTED; |
| 298 |
|
|
} |
| 299 |
|
|
|
| 300 |
|
|
jschar * c = xnew(jschar, num_bytes); |
| 301 |
|
|
for (size_t i = 0; i < num_bytes; i++) { |
| 302 |
|
|
if (bytes[i]) > 127) { |
| 303 |
|
|
free(c); |
| 304 |
|
|
return JSCOVERAGE_ERROR_ENCODING_NOT_SUPPORTED; |
| 305 |
|
|
} |
| 306 |
|
|
c[i] = bytes[i]; |
| 307 |
|
|
} |
| 308 |
|
|
|
| 309 |
|
|
*characters = c; |
| 310 |
|
|
*num_characters = num_bytes; |
| 311 |
|
|
return 0; |
| 312 |
|
|
} |
| 313 |
|
|
|
| 314 |
|
|
#endif |
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