/* $Id: pg_wchar.h,v 1.29 2001/09/06 04:57:29 ishii Exp $ */ #ifndef PG_WCHAR_H #define PG_WCHAR_H #include #ifdef FRONTEND #undef palloc #define palloc malloc #undef pfree #define pfree free #endif /* * The pg_wchar */ #ifdef MULTIBYTE typedef unsigned int pg_wchar; #else #define pg_wchar char #endif /* * various definitions for EUC */ #define SS2 0x8e /* single shift 2 (JIS0201) */ #define SS3 0x8f /* single shift 3 (JIS0212) */ /* * various definitions for mule internal code */ #define IS_LC1(c) ((unsigned char)(c) >= 0x81 && (unsigned char)(c) <= 0x8f) #define IS_LCPRV1(c) ((unsigned char)(c) == 0x9a || (unsigned char)(c) == 0x9b) #define IS_LC2(c) ((unsigned char)(c) >= 0x90 && (unsigned char)(c) <= 0x99) #define IS_LCPRV2(c) ((unsigned char)(c) == 0x9c || (unsigned char)(c) == 0x9d) /* * leading characters */ #define LC_ISO8859_1 0x81 /* ISO8859 Latin 1 */ #define LC_ISO8859_2 0x82 /* ISO8859 Latin 2 */ #define LC_ISO8859_3 0x83 /* ISO8859 Latin 3 */ #define LC_ISO8859_4 0x84 /* ISO8859 Latin 4 */ #define LC_ISO8859_5 0x8d /* ISO8859 Latin 5 */ #define LC_JISX0201K 0x89 /* Japanese 1 byte kana */ #define LC_JISX0201R 0x8a /* Japanese 1 byte Roman */ #define LC_KOI8_R 0x8c /* Cyrillic KOI8-R */ #define LC_KOI8_U 0x8c /* Cyrillic KOI8-U */ #define LC_GB2312_80 0x91 /* Chinese */ #define LC_JISX0208 0x92 /* Japanese Kanji */ #define LC_KS5601 0x93 /* Korean */ #define LC_JISX0212 0x94 /* Japanese Kanji (JISX0212) */ #define LC_CNS11643_1 0x95 /* CNS 11643-1992 Plane 1 */ #define LC_CNS11643_2 0x96 /* CNS 11643-1992 Plane 2 */ #define LC_CNS11643_3 0xf6 /* CNS 11643-1992 Plane 3 */ #define LC_CNS11643_4 0xf7 /* CNS 11643-1992 Plane 4 */ #define LC_CNS11643_5 0xf8 /* CNS 11643-1992 Plane 5 */ #define LC_CNS11643_6 0xf9 /* CNS 11643-1992 Plane 6 */ #define LC_CNS11643_7 0xfa /* CNS 11643-1992 Plane 7 */ /* * Encoding numeral identificators * * WARNING: the order of this table must be same as order * in the pg_enconv[] (mb/conv.c) and pg_enc2name[] (mb/names.c) array! * * If you add some encoding don'y forget check * PG_ENCODING_[BE|FE]_LAST macros. * * The PG_SQL_ASCII is default encoding and must be = 0. */ typedef enum pg_enc { PG_SQL_ASCII = 0, /* SQL/ASCII */ PG_EUC_JP, /* EUC for Japanese */ PG_EUC_CN, /* EUC for Chinese */ PG_EUC_KR, /* EUC for Korean */ PG_EUC_TW, /* EUC for Taiwan */ PG_UTF8, /* Unicode UTF-8 */ PG_MULE_INTERNAL, /* Mule internal code */ PG_LATIN1, /* ISO-8859 Latin 1 */ PG_LATIN2, /* ISO-8859 Latin 2 */ PG_LATIN3, /* ISO-8859 Latin 3 */ PG_LATIN4, /* ISO-8859 Latin 4 */ PG_LATIN5, /* ISO-8859 Latin 5 */ PG_KOI8R, /* KOI8-R */ PG_WIN1251, /* windows-1251 (was: WIN) */ PG_ALT, /* (MS-DOS CP866) */ /* followings are for client encoding only */ PG_SJIS, /* Shift JIS */ PG_BIG5, /* Big5 */ PG_WIN1250, /* windows-1250 */ _PG_LAST_ENCODING_ /* mark only */ } pg_enc; #define PG_ENCODING_BE_LAST PG_ALT #define PG_ENCODING_FE_LAST PG_WIN1250 #ifdef MULTIBYTE /* * Please use these tests before access to pg_encconv_tbl[] * or to other places... */ #define PG_VALID_BE_ENCODING(_enc) \ ((_enc) >= 0 && (_enc) <= PG_ENCODING_BE_LAST) #define PG_ENCODING_IS_CLIEN_ONLY(_enc) \ (((_enc) > PG_ENCODING_BE_LAST && (_enc) <= PG_ENCODING_FE_LAST) #define PG_VALID_ENCODING(_enc) \ ((_enc) >= 0 && (_enc) < _PG_LAST_ENCODING_) /* On FE are possible all encodings */ #define PG_VALID_FE_ENCODING(_enc) PG_VALID_ENCODING(_enc) /* * Encoding names with all aliases */ typedef struct pg_encname { char *name; pg_enc encoding; } pg_encname; extern pg_encname pg_encname_tbl[]; extern unsigned int pg_encname_tbl_sz; /* * Careful: * * if (PG_VALID_ENCODING(encoding)) * pg_enc2name_tbl[ encoding ]; */ typedef struct pg_enc2name { char *name; pg_enc encoding; } pg_enc2name; extern pg_enc2name pg_enc2name_tbl[]; extern pg_encname *pg_char_to_encname_struct(const char *name); extern int pg_char_to_encoding(const char *s); extern const char *pg_encoding_to_char(int encoding); /* * The backend encoding conversion routines * Careful: * * if (PG_VALID_ENCODING(enc)) * pg_encconv_tbl[ enc ]->foo */ #ifndef FRONTEND typedef struct pg_enconv { pg_enc encoding; /* encoding identificator */ void (*to_mic) (); /* client encoding to MIC */ void (*from_mic) (); /* MIC to client encoding */ void (*to_unicode) (); /* client encoding to UTF-8 */ void (*from_unicode) (); /* UTF-8 to client encoding */ } pg_enconv; extern pg_enconv pg_enconv_tbl[]; extern pg_enconv *pg_get_enconv_by_encoding(int encoding); #endif /* FRONTEND */ /* * pg_wchar stuff */ typedef struct { int (*mb2wchar_with_len) (); /* convert a multi-byte * string to a wchar */ int (*mblen) (); /* returns the length of a multi-byte word */ } pg_wchar_tbl; extern pg_wchar_tbl pg_wchar_table[]; /* * UTF-8 to local code conversion map */ typedef struct { unsigned int utf; /* UTF-8 */ unsigned int code; /* local code */ } pg_utf_to_local; /* * local code to UTF-8 conversion map */ typedef struct { unsigned int code; /* local code */ unsigned int utf; /* UTF-8 */ } pg_local_to_utf; extern int pg_mb2wchar(const unsigned char *, pg_wchar *); extern int pg_mb2wchar_with_len(const unsigned char *, pg_wchar *, int); extern int pg_char_and_wchar_strcmp(const char *, const pg_wchar *); extern int pg_wchar_strncmp(const pg_wchar *, const pg_wchar *, size_t); extern int pg_char_and_wchar_strncmp(const char *, const pg_wchar *, size_t); extern size_t pg_wchar_strlen(const pg_wchar *); extern int pg_mblen(const unsigned char *); extern int pg_encoding_mblen(int, const unsigned char *); extern int pg_mule_mblen(const unsigned char *); extern int pg_mic_mblen(const unsigned char *); extern int pg_mbstrlen(const unsigned char *); extern int pg_mbstrlen_with_len(const unsigned char *, int); extern int pg_mbcliplen(const unsigned char *, int, int); extern int pg_mbcharcliplen(const unsigned char *, int, int); extern int pg_set_client_encoding(int); extern int pg_get_client_encoding(void); extern const char *pg_get_client_encoding_name(void); extern void SetDatabaseEncoding(int); extern int GetDatabaseEncoding(void); extern const char *GetDatabaseEncodingName(void); extern int pg_valid_client_encoding(const char *name); extern int pg_valid_server_encoding(const char *name); extern int pg_utf_mblen(const unsigned char *); extern int pg_find_encoding_converters(int, int, void (**)(), void (**)()); extern unsigned char *pg_do_encoding_conversion(unsigned char *, int, void (*)(), void (*)()); extern unsigned char *pg_client_to_server(unsigned char *, int); extern unsigned char *pg_server_to_client(unsigned char *, int); extern unsigned short BIG5toCNS(unsigned short, unsigned char *); extern unsigned short CNStoBIG5(unsigned short, unsigned char); #endif /* MULTIBYTE */ #endif /* PG_WCHAR_H */