Deprecated: The each() function is deprecated. This message will be suppressed on further calls in /home/zhenxiangba/zhenxiangba.com/public_html/phproxy-improved-master/index.php on line 456
/* * The Single Unix Specification function nl_langinfo(CODESET) * returns the name of the encoding used by the currently selected * locale: * * http://www.opengroup.org/onlinepubs/7908799/xsh/langinfo.h.html * * Unfortunately the encoding names are not yet standardized. * This function knows about the encoding names used on many * different systems and converts them where possible into * the corresponding MIME charset name registered in * * http://www.iana.org/assignments/character-sets * * Please extend it as needed and suggest improvements to the author. * * Markus.Kuhn@cl.cam.ac.uk -- 2002-03-11 * Permission to use, copy, modify, and distribute this software * for any purpose and without fee is hereby granted. The author * disclaims all warranties with regard to this software. * * Latest version: * * http://www.cl.cam.ac.uk/~mgk25/ucs/norm_charmap.c */ #include #ifdef TEST #include #include #include #endif #define digit(x) ((x) >= '0' && (x) <= '9') static char buf[16]; char *norm_charmap(char *name) { char *p; if (!name) return name; /* Many need no remapping, but they are listed here so you * can see what output to expect, and modify for your needs * as necessary. */ if (!strcmp(name, "UTF-8")) return "UTF-8"; if (!strcmp(name, "EUC-JP")) return "EUC-JP"; if (!strcmp(name, "EUC-KR")) return "EUC-KR"; if (!strcmp(name, "EUC-TW")) return "EUC-TW"; if (!strcmp(name, "KOI8-R")) return "KOI8-R"; if (!strcmp(name, "KOI8-U")) return "KOI8-U"; if (!strcmp(name, "GBK")) return "GBK"; if (!strcmp(name, "GB2312")) return "GB2312"; if (!strcmp(name, "GB18030")) return "GB18030"; if (!strcmp(name, "VSCII")) return "VSCII"; /* ASCII comes in many names */ if (!strcmp(name, "ASCII") || !strcmp(name, "US-ASCII") || !strcmp(name, "ANSI_X3.4-1968") || !strcmp(name, "646") || !strcmp(name, "ISO646") || !strcmp(name, "ISO_646.IRV")) return "US-ASCII"; /* ISO 8859 will be converted to "ISO-8859-x" */ if ((p = strstr(name, "8859-"))) { memcpy(buf, "ISO-8859-\0\0", 12); p += 5; if (digit(*p)) { buf[9] = *p++; if (digit(*p)) buf[10] = *p++; return buf; } } /* Windows code pages will be converted to "WINDOWS-12xx" */ if ((p = strstr(name, "CP12"))) { memcpy(buf, "WINDOWS-12\0\0", 13); p += 4; if (digit(*p)) { buf[10] = *p++; if (digit(*p)) buf[11] = *p++; return buf; } } /* TIS-620 comes in at least the following two forms */ if (!strcmp(name, "TIS-620") || !strcmp(name, "TIS620.2533")) return "ISO-8859-11"; /* For some, uppercase/lowercase might differ */ if (!strcmp(name, "Big5") || !strcmp(name, "BIG5")) return "Big5"; if (!strcmp(name, "Big5HKSCS") || !strcmp(name, "BIG5HKSCS")) return "Big5HKSCS"; /* I don't know of any implementation of nl_langinfo(CODESET) out * there that returns anything else (and I'm not even certain all of * the above occur in the wild), but just in case, as a fallback, * return the unmodified name. */ #ifdef TEST printf("**** Unknown encoding name '%s'!\n", name); #endif return name; } /* For a demo, compile with * * gcc -W -Wall -o norm_charmap -D TEST norm_charmap.c * * and then test it on all available locales with * * for i in `locale -a` ; do printf "$i: " ; LC_ALL=$i ./norm_charmap ; done */ #ifdef TEST int main(int argc, char **argv) { char *s; if (argc > 1) s = argv[1]; else { setlocale(LC_CTYPE, ""); s = nl_langinfo(CODESET); } printf("%s -> %s\n", s, norm_charmap(s)); return 0; } #endif