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utils_unicode.c
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/*
Copyright 2009-2021 Luigi Auriemma
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 2 of the License, or
(at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program; if not, write to the Free Software
Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
http://www.gnu.org/licenses/gpl-2.0.txt
*/
int get_my_endian(void);
u16 swap16le(u16 n);
u16 swap16be(u16 n);
int myisdigitstr(u8 *str);
#ifndef CP_UTF8
#define CP_UTF8 65001
#endif
// libiconv takes one megabyte when linked statically, so I prefer to use the Win32 API
#ifdef USE_LIBICONV
#include <iconv.h>
#endif
static const int max_utf8_char_size = 5; // 4 for utf8 and 5 for a very rare case of utf7, better stay safe and using 5
// NEVER use sizeof(wchar_t) because on Linux it's 32bit instead of 16!
// sizeof(wchar_t) -> sizeof(u16)
// https://msdn.microsoft.com/en-us/library/windows/desktop/dd317756%28v=vs.85%29.aspx
typedef struct {
int identifier;
char *name;
char *information;
} charset_codepage_t;
charset_codepage_t g_charset_codepage[] = {
{ 037, "IBM037", "IBM EBCDIC US-Canada" },
{ 437, "IBM437", "OEM United States" },
{ 500, "IBM500", "IBM EBCDIC International" },
{ 708, "ASMO-708", "Arabic (ASMO 708)" },
{ 709, "", "Arabic (ASMO-449+, BCON V4)" },
{ 710, "", "Arabic - Transparent Arabic" },
{ 720, "DOS-720", "Arabic (Transparent ASMO); Arabic (DOS)" },
{ 737, "ibm737", "OEM Greek (formerly 437G); Greek (DOS)" },
{ 775, "ibm775", "OEM Baltic; Baltic (DOS)" },
{ 850, "ibm850", "OEM Multilingual Latin 1; Western European (DOS)" },
{ 852, "ibm852", "OEM Latin 2; Central European (DOS)" },
{ 855, "IBM855", "OEM Cyrillic (primarily Russian)" },
{ 857, "ibm857", "OEM Turkish; Turkish (DOS)" },
{ 858, "IBM00858", "OEM Multilingual Latin 1 + Euro symbol" },
{ 860, "IBM860", "OEM Portuguese; Portuguese (DOS)" },
{ 861, "ibm861", "OEM Icelandic; Icelandic (DOS)" },
{ 862, "DOS-862", "OEM Hebrew; Hebrew (DOS)" },
{ 863, "IBM863", "OEM French Canadian; French Canadian (DOS)" },
{ 864, "IBM864", "OEM Arabic; Arabic (864)" },
{ 865, "IBM865", "OEM Nordic; Nordic (DOS)" },
{ 866, "cp866", "OEM Russian; Cyrillic (DOS)" },
{ 869, "ibm869", "OEM Modern Greek; Greek, Modern (DOS)" },
{ 870, "IBM870", "IBM EBCDIC Multilingual/ROECE (Latin 2); IBM EBCDIC Multilingual Latin 2" },
{ 874, "windows-874", "ANSI/OEM Thai (ISO 8859-11); Thai (Windows)" },
{ 875, "cp875", "IBM EBCDIC Greek Modern" },
{ 932, "shift_jis", "ANSI/OEM Japanese; Japanese (Shift-JIS)" },
{ 936, "gb2312", "ANSI/OEM Simplified Chinese (PRC, Singapore); Chinese Simplified (GB2312)" },
{ 949, "ks_c_5601-1987", "ANSI/OEM Korean (Unified Hangul Code)" },
{ 950, "big5", "ANSI/OEM Traditional Chinese (Taiwan; Hong Kong SAR, PRC); Chinese Traditional (Big5)" },
{ 1026, "IBM1026", "IBM EBCDIC Turkish (Latin 5)" },
{ 1047, "IBM01047", "IBM EBCDIC Latin 1/Open System" },
{ 1140, "IBM01140", "IBM EBCDIC US-Canada (037 + Euro symbol); IBM EBCDIC (US-Canada-Euro)" },
{ 1141, "IBM01141", "IBM EBCDIC Germany (20273 + Euro symbol); IBM EBCDIC (Germany-Euro)" },
{ 1142, "IBM01142", "IBM EBCDIC Denmark-Norway (20277 + Euro symbol); IBM EBCDIC (Denmark-Norway-Euro)" },
{ 1143, "IBM01143", "IBM EBCDIC Finland-Sweden (20278 + Euro symbol); IBM EBCDIC (Finland-Sweden-Euro)" },
{ 1144, "IBM01144", "IBM EBCDIC Italy (20280 + Euro symbol); IBM EBCDIC (Italy-Euro)" },
{ 1145, "IBM01145", "IBM EBCDIC Latin America-Spain (20284 + Euro symbol); IBM EBCDIC (Spain-Euro)" },
{ 1146, "IBM01146", "IBM EBCDIC United Kingdom (20285 + Euro symbol); IBM EBCDIC (UK-Euro)" },
{ 1147, "IBM01147", "IBM EBCDIC France (20297 + Euro symbol); IBM EBCDIC (France-Euro)" },
{ 1148, "IBM01148", "IBM EBCDIC International (500 + Euro symbol); IBM EBCDIC (International-Euro)" },
{ 1149, "IBM01149", "IBM EBCDIC Icelandic (20871 + Euro symbol); IBM EBCDIC (Icelandic-Euro)" },
{ 1200, "utf-16", "Unicode UTF-16, little endian byte order (BMP of ISO 10646); available only to managed applications" },
{ 1201, "unicodeFFFE", "Unicode UTF-16, big endian byte order; available only to managed applications" },
{ 1250, "windows-1250", "ANSI Central European; Central European (Windows)" },
{ 1251, "windows-1251", "ANSI Cyrillic; Cyrillic (Windows)" },
{ 1252, "windows-1252", "ANSI Latin 1; Western European (Windows)" },
{ 1253, "windows-1253", "ANSI Greek; Greek (Windows)" },
{ 1254, "windows-1254", "ANSI Turkish; Turkish (Windows)" },
{ 1255, "windows-1255", "ANSI Hebrew; Hebrew (Windows)" },
{ 1256, "windows-1256", "ANSI Arabic; Arabic (Windows)" },
{ 1257, "windows-1257", "ANSI Baltic; Baltic (Windows)" },
{ 1258, "windows-1258", "ANSI/OEM Vietnamese; Vietnamese (Windows)" },
{ 1361, "Johab", "Korean (Johab)" },
{ 10000, "macintosh", "MAC Roman; Western European (Mac)" },
{ 10001, "x-mac-japanese", "Japanese (Mac)" },
{ 10002, "x-mac-chinesetrad", "MAC Traditional Chinese (Big5); Chinese Traditional (Mac)" },
{ 10003, "x-mac-korean", "Korean (Mac)" },
{ 10004, "x-mac-arabic", "Arabic (Mac)" },
{ 10005, "x-mac-hebrew", "Hebrew (Mac)" },
{ 10006, "x-mac-greek", "Greek (Mac)" },
{ 10007, "x-mac-cyrillic", "Cyrillic (Mac)" },
{ 10008, "x-mac-chinesesimp", "MAC Simplified Chinese (GB 2312); Chinese Simplified (Mac)" },
{ 10010, "x-mac-romanian", "Romanian (Mac)" },
{ 10017, "x-mac-ukrainian", "Ukrainian (Mac)" },
{ 10021, "x-mac-thai", "Thai (Mac)" },
{ 10029, "x-mac-ce", "MAC Latin 2; Central European (Mac)" },
{ 10079, "x-mac-icelandic", "Icelandic (Mac)" },
{ 10081, "x-mac-turkish", "Turkish (Mac)" },
{ 10082, "x-mac-croatian", "Croatian (Mac)" },
{ 12000, "utf-32", "Unicode UTF-32, little endian byte order; available only to managed applications" },
{ 12001, "utf-32BE", "Unicode UTF-32, big endian byte order; available only to managed applications" },
{ 20000, "x-Chinese_CNS", "CNS Taiwan; Chinese Traditional (CNS)" },
{ 20001, "x-cp20001", "TCA Taiwan" },
{ 20002, "x_Chinese-Eten", "Eten Taiwan; Chinese Traditional (Eten)" },
{ 20003, "x-cp20003", "IBM5550 Taiwan" },
{ 20004, "x-cp20004", "TeleText Taiwan" },
{ 20005, "x-cp20005", "Wang Taiwan" },
{ 20105, "x-IA5", "IA5 (IRV International Alphabet No. 5, 7-bit); Western European (IA5)" },
{ 20106, "x-IA5-German", "IA5 German (7-bit)" },
{ 20107, "x-IA5-Swedish", "IA5 Swedish (7-bit)" },
{ 20108, "x-IA5-Norwegian", "IA5 Norwegian (7-bit)" },
{ 20127, "us-ascii", "US-ASCII (7-bit)" },
{ 20261, "x-cp20261", "T.61" },
{ 20269, "x-cp20269", "ISO 6937 Non-Spacing Accent" },
{ 20273, "IBM273", "IBM EBCDIC Germany" },
{ 20277, "IBM277", "IBM EBCDIC Denmark-Norway" },
{ 20278, "IBM278", "IBM EBCDIC Finland-Sweden" },
{ 20280, "IBM280", "IBM EBCDIC Italy" },
{ 20284, "IBM284", "IBM EBCDIC Latin America-Spain" },
{ 20285, "IBM285", "IBM EBCDIC United Kingdom" },
{ 20290, "IBM290", "IBM EBCDIC Japanese Katakana Extended" },
{ 20297, "IBM297", "IBM EBCDIC France" },
{ 20420, "IBM420", "IBM EBCDIC Arabic" },
{ 20423, "IBM423", "IBM EBCDIC Greek" },
{ 20424, "IBM424", "IBM EBCDIC Hebrew" },
{ 20833, "x-EBCDIC-KoreanExtended", "IBM EBCDIC Korean Extended" },
{ 20838, "IBM-Thai", "IBM EBCDIC Thai" },
{ 20866, "koi8-r", "Russian (KOI8-R); Cyrillic (KOI8-R)" },
{ 20871, "IBM871", "IBM EBCDIC Icelandic" },
{ 20880, "IBM880", "IBM EBCDIC Cyrillic Russian" },
{ 20905, "IBM905", "IBM EBCDIC Turkish" },
{ 20924, "IBM00924", "IBM EBCDIC Latin 1/Open System (1047 + Euro symbol)" },
{ 20932, "EUC-JP", "Japanese (JIS 0208-1990 and 0212-1990)" },
{ 20936, "x-cp20936", "Simplified Chinese (GB2312); Chinese Simplified (GB2312-80)" },
{ 20949, "x-cp20949", "Korean Wansung" },
{ 21025, "cp1025", "IBM EBCDIC Cyrillic Serbian-Bulgarian" },
{ 21027, "", "(deprecated)" },
{ 21866, "koi8-u", "Ukrainian (KOI8-U); Cyrillic (KOI8-U)" },
{ 28591, "iso-8859-1", "ISO 8859-1 Latin 1; Western European (ISO)" },
{ 28592, "iso-8859-2", "ISO 8859-2 Central European; Central European (ISO)" },
{ 28593, "iso-8859-3", "ISO 8859-3 Latin 3" },
{ 28594, "iso-8859-4", "ISO 8859-4 Baltic" },
{ 28595, "iso-8859-5", "ISO 8859-5 Cyrillic" },
{ 28596, "iso-8859-6", "ISO 8859-6 Arabic" },
{ 28597, "iso-8859-7", "ISO 8859-7 Greek" },
{ 28598, "iso-8859-8", "ISO 8859-8 Hebrew; Hebrew (ISO-Visual)" },
{ 28599, "iso-8859-9", "ISO 8859-9 Turkish" },
{ 28603, "iso-8859-13", "ISO 8859-13 Estonian" },
{ 28605, "iso-8859-15", "ISO 8859-15 Latin 9" },
{ 29001, "x-Europa", "Europa 3" },
{ 38598, "iso-8859-8-i", "ISO 8859-8 Hebrew; Hebrew (ISO-Logical)" },
{ 50220, "iso-2022-jp", "ISO 2022 Japanese with no halfwidth Katakana; Japanese (JIS)" },
{ 50221, "csISO2022JP", "ISO 2022 Japanese with halfwidth Katakana; Japanese (JIS-Allow 1 byte Kana)" },
{ 50222, "iso-2022-jp", "ISO 2022 Japanese JIS X 0201-1989; Japanese (JIS-Allow 1 byte Kana - SO/SI)" },
{ 50225, "iso-2022-kr", "ISO 2022 Korean" },
{ 50227, "x-cp50227", "ISO 2022 Simplified Chinese; Chinese Simplified (ISO 2022)" },
{ 50229, "", "ISO 2022 Traditional Chinese" },
{ 50930, "", "EBCDIC Japanese (Katakana) Extended" },
{ 50931, "", "EBCDIC US-Canada and Japanese" },
{ 50933, "", "EBCDIC Korean Extended and Korean" },
{ 50935, "", "EBCDIC Simplified Chinese Extended and Simplified Chinese" },
{ 50936, "", "EBCDIC Simplified Chinese" },
{ 50937, "", "EBCDIC US-Canada and Traditional Chinese" },
{ 50939, "", "EBCDIC Japanese (Latin) Extended and Japanese" },
{ 51932, "euc-jp", "EUC Japanese" },
{ 51936, "EUC-CN", "EUC Simplified Chinese; Chinese Simplified (EUC)" },
{ 51949, "euc-kr", "EUC Korean" },
{ 51950, "", "EUC Traditional Chinese" },
{ 52936, "hz-gb-2312", "HZ-GB2312 Simplified Chinese; Chinese Simplified (HZ)" },
{ 54936, "GB18030", "Windows XP and later: GB18030 Simplified Chinese (4 byte); Chinese Simplified (GB18030)" },
{ 57002, "x-iscii-de", "ISCII Devanagari" },
{ 57003, "x-iscii-be", "ISCII Bengali" },
{ 57004, "x-iscii-ta", "ISCII Tamil" },
{ 57005, "x-iscii-te", "ISCII Telugu" },
{ 57006, "x-iscii-as", "ISCII Assamese" },
{ 57007, "x-iscii-or", "ISCII Oriya" },
{ 57008, "x-iscii-ka", "ISCII Kannada" },
{ 57009, "x-iscii-ma", "ISCII Malayalam" },
{ 57010, "x-iscii-gu", "ISCII Gujarati" },
{ 57011, "x-iscii-pa", "ISCII Punjabi" },
{ 65000, "utf-7", "Unicode (UTF-7)" },
{ 65001, "utf-8", "Unicode (UTF-8)" },
//
{ 0, "CP_ACP", "" },
{ 1, "CP_OEM", "" },
{ 1, "CP_OEMCP", "" },
{ 2, "CP_MACCP", "" },
{ 3, "CP_THREAD_ACP", "" },
{ 42, "CP_SYMBOL", "" },
{ 65000, "CP_UTF7", "" },
{ 65001, "CP_UTF8", "" },
{ 65000, "UTF7", "" },
{ 65001, "UTF8", "" },
{ -1, NULL, NULL }
};
u8 *get_codepage_from_id(int id) {
int i;
for(i = 0; g_charset_codepage[i].identifier >= 0; i++) {
if(g_charset_codepage[i].identifier == id) {
return g_charset_codepage[i].name;
}
}
return NULL;
}
int get_codepage_from_string(u8 *name) {
int i;
while(*name && ((*name <= ' ') || (*name == '_') || (*name == '-'))) name++;
for(i = 0; g_charset_codepage[i].identifier >= 0; i++) {
if(!stricmp(name, g_charset_codepage[i].name)) {
return g_charset_codepage[i].identifier;
}
}
if(!strnicmp(name, "cp", 2)) {
return get_codepage_from_string(name + 2);
}
if(myisdigitstr(name)) {
return myatoi(name);
}
return -1;
}
// not compatible with big endian utf32
int _utf8_to_utf16_chr(u8 *in, int insz, wchar_t *wc, int handle_endianess, int mycodepage, int utf32) {
int len = -1;
wchar_t t16;
if(!wc) wc = &t16;
*wc = 0;
if(insz < 0) insz = strlen(in);
if(!insz) return 0;
if(insz > max_utf8_char_size) insz = max_utf8_char_size; //otherwise it goes in a sort of endless loop, a char is max 4 bytes
#ifdef WIN32
static const int codepage[] = {
CP_UTF8,
//CP_OEMCP,
CP_ACP,
-1
};
int cp;
if(mycodepage > 0) {
cp = -1; // automatic scan if it fails (cp++ is 0)
goto doit;
}
for(cp = 0; codepage[cp] >= 0; cp++) {
mycodepage = codepage[cp];
doit:
*wc = 0;
int i;
for(i = 1; i <= insz; i++) {
if(MultiByteToWideChar(mycodepage, MB_ERR_INVALID_CHARS /*necessary or this solution will not work*/, in, i, (void *)wc, 1 /*chars not bytes!*/)) {
len = i;
break;
}
}
if((len > 0) && (*wc != 0xfffd)) break;
}
if(len > insz) len = -1;
#endif
#ifdef USE_LIBICONV
if(len <= 0) {
static iconv_t ic = NULL;
static int old_endian = -1;
if(g_endian != old_endian) {
old_endian = g_endian;
if(ic) iconv_close(ic);
//ic = iconv_open((g_endian == MYLITTLE_ENDIAN) ? "UTF-16LE" : "UTF-16BE", "UTF-8"); // utf8 to utf16
ic = iconv_open(utf32 ? "UTF-32LE" : "UTF-16LE", "UTF-8"); // correct, not tested on big endian CPU
}
if(ic != (iconv_t)(-1)) {
u16 wc16 = 0;
u32 wc32 = 0;
size_t il = insz,
ol = utf32 ? sizeof(wc32) : sizeof(wc16) /*sizeof(wchar_t)*/;
char *ip = in,
*op = utf32 ? (void *)&wc32 : (void *)&wc16;
if(iconv(ic, &ip, &il, &op, &ol) >= 0) {
len = ip - (char *)in;
}
*wc = utf32 ? wc32 : wc16;
}
}
#endif
if(len <= 0) {
len = mbtowc(wc, in, insz);
}
if(len <= 0) {
len = 1;
*wc = in[0];
}
if(handle_endianess) {
if(utf32) {
// endianess does NOT work with utf32 because wc is wchar_t (16 bit on Windows)
if(g_endian == MYLITTLE_ENDIAN) *wc = swap32le(*wc);
else *wc = swap32be(*wc);
} else {
if(g_endian == MYLITTLE_ENDIAN) *wc = swap16le(*wc);
else *wc = swap16be(*wc);
}
}
return len; // input size
}
int utf8_to_utf16_chr(u8 *in, int insz, u16 *wc, int handle_endianess, int mycodepage) {
wchar_t wc_ret;
int ret = _utf8_to_utf16_chr(in, insz, &wc_ret, handle_endianess, mycodepage, 0);
if(wc) *wc = wc_ret;
return ret;
}
int utf8_to_utf32_chr(u8 *in, int insz, u32 *wc, int handle_endianess, int mycodepage) {
wchar_t wc_ret;
int ret = _utf8_to_utf16_chr(in, insz, &wc_ret, handle_endianess, mycodepage, 1);
if(wc) *wc = wc_ret;
return ret;
}
int _utf16_to_utf8_chr(u32 wc, u8 *out, int outsz, int handle_endianess, int mycodepage, int utf32) {
int len = -1;
wchar_t wct;
if(handle_endianess) {
if(utf32) {
if(g_endian == MYLITTLE_ENDIAN) wc = swap32le(wc);
else wc = swap32be(wc);
} else {
if(g_endian == MYLITTLE_ENDIAN) wc = swap16le(wc);
else wc = swap16be(wc);
}
}
wct = wc;
#ifdef WIN32
if(mycodepage < 0) mycodepage = CP_UTF8;
len = WideCharToMultiByte(mycodepage, 0, (void *)&wct, 1 /*chars not bytes!*/, out, outsz, NULL, NULL);
if(len > outsz) len = -1;
#endif
#ifdef USE_LIBICONV
if(len <= 0) {
static iconv_t ic = NULL;
static int old_endian = -1;
if(g_endian != old_endian) {
old_endian = g_endian;
if(ic) iconv_close(ic);
//ic = iconv_open("UTF-8", (g_endian == MYLITTLE_ENDIAN) ? "UTF-16LE" : "UTF-16BE"); // utf16 to utf8
ic = iconv_open("UTF-8", utf32 ? "UTF-32LE" : "UTF-16LE"); // wct is already endian-converted, so no need of LE/BE, not tested on big endian CPU
}
if(ic != (iconv_t)(-1)) {
u16 wc16 = 0;
u32 wc32 = 0;
size_t il = utf32 ? sizeof(wc32) : sizeof(wc16) /*sizeof(wchar_t)*/,
ol = outsz;
char *ip = utf32 ? (void *)&wc32 : (void *)&wc16,
*op = out;
if(iconv(ic, &ip, &il, &op, &ol) >= 0) {
len = op - (char *)out;
}
wct = utf32 ? wc32 : wc16;
}
}
#endif
if(len <= 0) {
len = wctomb(out, wct);
}
if(len <= 0) {
len = 1;
out[0] = wct;
}
return len; // output size
}
int utf16_to_utf8_chr(u16 wc, u8 *out, int outsz, int handle_endianess, int mycodepage) {
return _utf16_to_utf8_chr(wc, out, outsz, handle_endianess, mycodepage, 0);
}
int utf32_to_utf8_chr(u32 wc, u8 *out, int outsz, int handle_endianess, int mycodepage) {
return _utf16_to_utf8_chr(wc, out, outsz, handle_endianess, mycodepage, 1);
}
// yes, this is like a sort of duplicate of utf8_to_utf16_chr... it should be rewritten probably
int utf8_to_utf16(u8 *in, int insz, u8 *out, int outsz, int rev) {
int i = 0,
o = 0,
t = 0,
len = 0,
mycodepage = g_codepage;
wchar_t wc = 0;
if(!out) return -1;
if(outsz < 0) return -1;
if(insz < 0) insz = strlen(in);
#ifdef WIN32
if(!rev) {
int codepage;
for(codepage = 0;; codepage++) {
if(codepage == 0) mycodepage = g_codepage;
if(mycodepage < 0) codepage++;
if(codepage == 1) mycodepage = CP_UTF8;
else if(codepage == 2) mycodepage = CP_ACP;
else break;
t = outsz / sizeof(u16) /*sizeof(wchar_t)*/;
o = MultiByteToWideChar(mycodepage, 0, in, insz, (void *)out, t);
if(o > t) o = -1;
o *= sizeof(u16) /*sizeof(wchar_t)*/;
for(i = 0; i < o; i += sizeof(u16) /*sizeof(wchar_t)*/) {
wc = ((wchar_t *)(out + i))[0];
if(wc == 0xfffd) break;
if(g_endian == MYLITTLE_ENDIAN) ((wchar_t *)(out + i))[0] = swap16le(wc);
else ((wchar_t *)(out + i))[0] = swap16be(wc);
}
if(i < o) continue;
break;
}
} else {
t = insz / sizeof(u16) /*sizeof(wchar_t)*/;
o = WideCharToMultiByte((g_codepage < 0) ? CP_UTF8 : g_codepage, 0, (void *)in, t, out, outsz, NULL, NULL);
if(o > t) o = -1;
}
if(o <= 0)
#endif
{
#ifdef USE_LIBICONV
iconv_t ic;
if(!rev) ic = iconv_open((g_endian == MYLITTLE_ENDIAN) ? "UTF-16LE" : "UTF-16BE", "UTF-8"); // utf8 to utf16
else ic = iconv_open("UTF-8", (g_endian == MYLITTLE_ENDIAN) ? "UTF-16LE" : "UTF-16BE"); // utf16 to utf8
if(ic != (iconv_t)(-1)) {
size_t il = insz,
ol = outsz;
char *ip = in,
*op = out;
do {
len = iconv(ic, &ip, &il, &op, &ol);
} while(len > 0);
iconv_close(ic);
o = op - (char *)out;
} else
#endif
{
o = 0;
if(!rev) { // 8 to 16
for(i = 0; i < insz; i += len) {
len = mbtowc(&wc, in + i, insz - i);
if(len <= 0) {
wc = in[i];
len = 1;
}
if(g_endian == MYLITTLE_ENDIAN) {
out[o++] = wc & 0xff;
out[o++] = (wc >> 8) & 0xff;
} else {
out[o++] = (wc >> 8) & 0xff;
out[o++] = wc & 0xff;
}
}
} else { // 16 to 8
len = sizeof(u16) /*sizeof(wchar_t)*/;
for(i = 0; (i + len) <= insz; i += len) {
if(g_endian == MYLITTLE_ENDIAN) {
wc = in[i] | (in[i + 1] << 8);
} else {
wc = (in[i] << 8) | in[i + 1];
}
t = wctomb(out + o, wc);
if(t <= 0) {
out[o] = wc;
t = 1;
}
o += t;
}
}
}
}
int ret = o; // without the last NULL
out[o++] = 0;
if(!rev) out[o++] = 0;
return ret;
}
// tested with little and big endian in reimport mode (SLog)
u8 *_set_utf8_to_unicode(u8 *input, int input_size, int *ret_size, int utf32) {
static int buffsz = 0;
static u8 *buff = NULL;
u32 wc32;
u16 wc16;
int i,
t,
wcsz = utf32 ? sizeof(wc32) : sizeof(wc16);
u8 *p,
*l;
if(!input) input = "";
if(input_size < 0) input_size = strlen(input);
p = input;
l = input + input_size;
i = 0;
while(p < l) {
if(utf32) t = utf8_to_utf32_chr(p, l - p, &wc32, 1, g_codepage);
else t = utf8_to_utf16_chr(p, l - p, &wc16, 1, g_codepage);
if(t <= 0) break;
p += t;
//if(!wc) break; // give freedom to have 0x00 in SLog unicode
if((i + wcsz) >= buffsz) {
buffsz += (STRINGSZ * wcsz);
buff = realloc(buff, buffsz + wcsz);
if(!buff) STD_ERR(QUICKBMS_ERROR_MEMORY);
}
if(utf32) *(u32 *)(buff + i) = wc32;
else *(u16 *)(buff + i) = wc16;
i += wcsz;
}
if(ret_size) *ret_size = i;
//buff = realloc(buff, i + wcsz); // do NOT activate or will crash
if(utf32) *(u32 *)(buff + i) = 0;
else *(u16 *)(buff + i) = 0;
//static const int set_utf8_to_unicode_zeroes = 4; // ???
//buff = realloc(buff, i + set_utf8_to_unicode_zeroes);
//if(!buff) STD_ERR(QUICKBMS_ERROR_MEMORY);
//memset(buff + i, 0, set_utf8_to_unicode_zeroes);
return buff;
}
u8 *set_utf8_to_unicode(u8 *input, int input_size, int *ret_size) {
return _set_utf8_to_unicode(input, input_size, ret_size, 0);
}
u8 *set_utf8_to_unicode32(u8 *input, int input_size, int *ret_size) {
return _set_utf8_to_unicode(input, input_size, ret_size, 1);
}
u8 *_set_unicode_to_utf8(u8 *input, int input_size, int *ret_size, int utf32) {
static int buffsz = 0;
static u8 *buff = NULL;
int i,
x,
c,
len,
unicnt = 0,
wcsz = utf32 ? sizeof(u32) : sizeof(u16),
unicode = utf32 ? -1 : 0; // compatible with fgetss
u32 wc = 0;
u8 *p,
*l;
u8 tmp[32];
if(input_size < 0) {
if(utf32) {
for(input_size = 0; *(u32 *)(input + input_size); input_size += sizeof(u32));
} else {
for(input_size = 0; *(u16 *)(input + input_size); input_size += sizeof(u16));
}
}
p = input;
l = input + input_size;
i = 0;
for(;;) {
if(p >= l) c = 0;
else c = *p++;
// no c check here
// shared with fgetss
if(!unicnt) wc = 0;
if(g_endian == MYLITTLE_ENDIAN) {
wc |= (c << (8 * unicnt));
} else {
wc |= (c << (8 * (wcsz - (unicnt + 1))));
}
unicnt++;
if(unicnt < wcsz) continue;
unicnt = 0;
if(unicode > 0) len = utf16_to_utf8_chr(wc, tmp, sizeof(tmp), 0, g_codepage);
else len = utf32_to_utf8_chr(wc, tmp, sizeof(tmp), 0, g_codepage);
//if((len == 1) && (tmp[0] == 0x00)) break;
for(x = 0; x < len; x++) if(tmp[x]) break;
if(x >= len) break;
if((i + len) >= buffsz) {
buffsz += len + STRINGSZ;
buff = realloc(buff, buffsz + max_utf8_char_size);
if(!buff) STD_ERR(QUICKBMS_ERROR_MEMORY);
}
memcpy(buff + i, tmp, len);
i += len;
}
if(ret_size) *ret_size = i;
if(!buff) buff = malloc(1); // useful
buff[i] = 0;
// do not enable or crash... ???
//static const int set_unicode_to_utf8_zeroes = 4; // ???
//buff = realloc(buff, i + set_unicode_to_utf8_zeroes);
//memset(buff + i, 0, set_unicode_to_utf8_zeroes);
return buff;
}
u8 *set_unicode_to_utf8(u8 *input, int input_size, int *ret_size) {
return _set_unicode_to_utf8(input, input_size, ret_size, 0);
}
u8 *set_unicode32_to_utf8(u8 *input, int input_size, int *ret_size) {
return _set_unicode_to_utf8(input, input_size, ret_size, 1);
}
// if backup_g_codepage is active then every conversion will be wrong
wchar_t *native_utf8_to_unicode(u8 *input) {
//int backup_g_codepage = g_codepage;
int backup_g_endian = g_endian;
//g_codepage = CP_UTF8;
g_endian = get_my_endian();
wchar_t *retw = (wchar_t *)set_utf8_to_unicode(input, -1, NULL);
//g_codepage = backup_g_codepage;
g_endian = backup_g_endian;
return retw;
}
u8 *native_unicode_to_utf8(wchar_t *input) {
//int backup_g_codepage = g_codepage;
int backup_g_endian = g_endian;
//g_codepage = CP_UTF8;
g_endian = get_my_endian();
u8 *ret = set_unicode_to_utf8((u8 *)input, -1, NULL);
//g_codepage = backup_g_codepage;
g_endian = backup_g_endian;
return ret;
}
void set_codepage(void) {
if(g_codepage < 0) {
setlocale(LC_CTYPE, "C.utf8");
#ifdef WIN32
SetConsoleCP(CP_UTF8);
SetConsoleOutputCP(CP_UTF8);
#endif
} else {
u8 tmp[20];
sprintf(tmp, ".%d", (i32)g_codepage);
setlocale(LC_CTYPE, tmp);
#ifdef WIN32
SetConsoleCP(g_codepage);
SetConsoleOutputCP(g_codepage);
#endif
}
}
void set_g_codepage(u8 *str, int strn) {
int t;
if(!str) str = "UTF8";
if(!str[0] || myisdigitstr(str)) {
if(strn >= 0) g_codepage = strn;
else g_codepage = myatoi(str);
} else {
t = get_codepage_from_string(str);
if(t >= 0) g_codepage = t;
}
set_codepage();
}
wchar_t *mywstrcpy(wchar_t *dst, wchar_t *src) {
int i;
if(!dst) return NULL;
if(!src) src = L"";
for(i = 0; (dst[i] = src[i]); i++);
return dst;
}
wchar_t *mywstrncpy(wchar_t *dst, wchar_t *src, int num) {
int i;
if(num < 0) return mywstrcpy(dst, src);
if(!num) return NULL;
if(!dst) return NULL;
if(!src) src = L"";
num--; // reserve space for final NUL (not done by original implementation)
for(i = 0; (i < num) && (dst[i] = src[i]); i++);
dst[i] = 0; // overwrites the NUL or add a new one
return dst;
}
int mywstrcmp(wchar_t *a, wchar_t *b) {
int i;
if(!a && !b) return 0;
if(!a) return 1;
if(!b) return -1;
for(i = 0; a[i] && b[i] && (a[i] == b[i]); i++);
if(!a[i] && !b[i]) return 0;
if(b[i]) return 1;
if(a[i]) return -1;
return 0;
}
int mywstricmp(wchar_t *a, wchar_t *b) {
int i;
if(!a && !b) return 0;
if(!a) return 1;
if(!b) return -1;
for(i = 0; a[i] && b[i] && (tolower(a[i]) == tolower(b[i])); i++);
if(!a[i] && !b[i]) return 0;
if(b[i]) return 1;
if(a[i]) return -1;
return 0;
}