/*------------------------------------------------------------------------- * * LATIN2 and WIN1250 * * Portions Copyright (c) 1996-2025, PostgreSQL Global Development Group * Portions Copyright (c) 1994, Regents of the University of California * * IDENTIFICATION * src/backend/utils/mb/conversion_procs/latin2_and_win1250/latin2_and_win1250.c * *------------------------------------------------------------------------- */ #include "postgres.h" #include "fmgr.h" #include "mb/pg_wchar.h" PG_MODULE_MAGIC_EXT( .name = "latin2_and_win1250", .version = PG_VERSION ); PG_FUNCTION_INFO_V1(latin2_to_mic); PG_FUNCTION_INFO_V1(mic_to_latin2); PG_FUNCTION_INFO_V1(win1250_to_mic); PG_FUNCTION_INFO_V1(mic_to_win1250); PG_FUNCTION_INFO_V1(latin2_to_win1250); PG_FUNCTION_INFO_V1(win1250_to_latin2); /* ---------- * conv_proc( * INTEGER, -- source encoding id * INTEGER, -- destination encoding id * CSTRING, -- source string (null terminated C string) * CSTRING, -- destination string (null terminated C string) * INTEGER, -- source string length * BOOL -- if true, don't throw an error if conversion fails * ) returns INTEGER; * * Returns the number of bytes successfully converted. * ---------- */ /* WIN1250 to ISO-8859-2 */ static const unsigned char win1250_2_iso88592[] = { 0x80, 0x81, 0x82, 0x83, 0x84, 0x85, 0x86, 0x87, 0x88, 0x89, 0xA9, 0x8B, 0xA6, 0xAB, 0xAE, 0xAC, 0x90, 0x91, 0x92, 0x93, 0x94, 0x95, 0x96, 0x97, 0x98, 0x99, 0xB9, 0x9B, 0xB6, 0xBB, 0xBE, 0xBC, 0xA0, 0xB7, 0xA2, 0xA3, 0xA4, 0xA1, 0x00, 0xA7, 0xA8, 0x00, 0xAA, 0x00, 0x00, 0xAD, 0x00, 0xAF, 0xB0, 0x00, 0xB2, 0xB3, 0xB4, 0x00, 0x00, 0x00, 0xB8, 0xB1, 0xBA, 0x00, 0xA5, 0xBD, 0xB5, 0xBF, 0xC0, 0xC1, 0xC2, 0xC3, 0xC4, 0xC5, 0xC6, 0xC7, 0xC8, 0xC9, 0xCA, 0xCB, 0xCC, 0xCD, 0xCE, 0xCF, 0xD0, 0xD1, 0xD2, 0xD3, 0xD4, 0xD5, 0xD6, 0xD7, 0xD8, 0xD9, 0xDA, 0xDB, 0xDC, 0xDD, 0xDE, 0xDF, 0xE0, 0xE1, 0xE2, 0xE3, 0xE4, 0xE5, 0xE6, 0xE7, 0xE8, 0xE9, 0xEA, 0xEB, 0xEC, 0xED, 0xEE, 0xEF, 0xF0, 0xF1, 0xF2, 0xF3, 0xF4, 0xF5, 0xF6, 0xF7, 0xF8, 0xF9, 0xFA, 0xFB, 0xFC, 0xFD, 0xFE, 0xFF }; /* ISO-8859-2 to WIN1250 */ static const unsigned char iso88592_2_win1250[] = { 0x80, 0x81, 0x82, 0x83, 0x84, 0x85, 0x86, 0x87, 0x88, 0x89, 0x00, 0x8B, 0x00, 0x00, 0x00, 0x00, 0x90, 0x91, 0x92, 0x93, 0x94, 0x95, 0x96, 0x97, 0x98, 0x99, 0x00, 0x9B, 0x00, 0x00, 0x00, 0x00, 0xA0, 0xA5, 0xA2, 0xA3, 0xA4, 0xBC, 0x8C, 0xA7, 0xA8, 0x8A, 0xAA, 0x8D, 0x8F, 0xAD, 0x8E, 0xAF, 0xB0, 0xB9, 0xB2, 0xB3, 0xB4, 0xBE, 0x9C, 0xA1, 0xB8, 0x9A, 0xBA, 0x9D, 0x9F, 0xBD, 0x9E, 0xBF, 0xC0, 0xC1, 0xC2, 0xC3, 0xC4, 0xC5, 0xC6, 0xC7, 0xC8, 0xC9, 0xCA, 0xCB, 0xCC, 0xCD, 0xCE, 0xCF, 0xD0, 0xD1, 0xD2, 0xD3, 0xD4, 0xD5, 0xD6, 0xD7, 0xD8, 0xD9, 0xDA, 0xDB, 0xDC, 0xDD, 0xDE, 0xDF, 0xE0, 0xE1, 0xE2, 0xE3, 0xE4, 0xE5, 0xE6, 0xE7, 0xE8, 0xE9, 0xEA, 0xEB, 0xEC, 0xED, 0xEE, 0xEF, 0xF0, 0xF1, 0xF2, 0xF3, 0xF4, 0xF5, 0xF6, 0xF7, 0xF8, 0xF9, 0xFA, 0xFB, 0xFC, 0xFD, 0xFE, 0xFF }; Datum latin2_to_mic(PG_FUNCTION_ARGS) { unsigned char *src = (unsigned char *) PG_GETARG_CSTRING(2); unsigned char *dest = (unsigned char *) PG_GETARG_CSTRING(3); int len = PG_GETARG_INT32(4); bool noError = PG_GETARG_BOOL(5); int converted; CHECK_ENCODING_CONVERSION_ARGS(PG_LATIN2, PG_MULE_INTERNAL); converted = latin2mic(src, dest, len, LC_ISO8859_2, PG_LATIN2, noError); PG_RETURN_INT32(converted); } Datum mic_to_latin2(PG_FUNCTION_ARGS) { unsigned char *src = (unsigned char *) PG_GETARG_CSTRING(2); unsigned char *dest = (unsigned char *) PG_GETARG_CSTRING(3); int len = PG_GETARG_INT32(4); bool noError = PG_GETARG_BOOL(5); int converted; CHECK_ENCODING_CONVERSION_ARGS(PG_MULE_INTERNAL, PG_LATIN2); converted = mic2latin(src, dest, len, LC_ISO8859_2, PG_LATIN2, noError); PG_RETURN_INT32(converted); } Datum win1250_to_mic(PG_FUNCTION_ARGS) { unsigned char *src = (unsigned char *) PG_GETARG_CSTRING(2); unsigned char *dest = (unsigned char *) PG_GETARG_CSTRING(3); int len = PG_GETARG_INT32(4); bool noError = PG_GETARG_BOOL(5); int converted; CHECK_ENCODING_CONVERSION_ARGS(PG_WIN1250, PG_MULE_INTERNAL); converted = latin2mic_with_table(src, dest, len, LC_ISO8859_2, PG_WIN1250, win1250_2_iso88592, noError); PG_RETURN_INT32(converted); } Datum mic_to_win1250(PG_FUNCTION_ARGS) { unsigned char *src = (unsigned char *) PG_GETARG_CSTRING(2); unsigned char *dest = (unsigned char *) PG_GETARG_CSTRING(3); int len = PG_GETARG_INT32(4); bool noError = PG_GETARG_BOOL(5); int converted; CHECK_ENCODING_CONVERSION_ARGS(PG_MULE_INTERNAL, PG_WIN1250); converted = mic2latin_with_table(src, dest, len, LC_ISO8859_2, PG_WIN1250, iso88592_2_win1250, noError); PG_RETURN_INT32(converted); } Datum latin2_to_win1250(PG_FUNCTION_ARGS) { unsigned char *src = (unsigned char *) PG_GETARG_CSTRING(2); unsigned char *dest = (unsigned char *) PG_GETARG_CSTRING(3); int len = PG_GETARG_INT32(4); bool noError = PG_GETARG_BOOL(5); int converted; CHECK_ENCODING_CONVERSION_ARGS(PG_LATIN2, PG_WIN1250); converted = local2local(src, dest, len, PG_LATIN2, PG_WIN1250, iso88592_2_win1250, noError); PG_RETURN_INT32(converted); } Datum win1250_to_latin2(PG_FUNCTION_ARGS) { unsigned char *src = (unsigned char *) PG_GETARG_CSTRING(2); unsigned char *dest = (unsigned char *) PG_GETARG_CSTRING(3); int len = PG_GETARG_INT32(4); bool noError = PG_GETARG_BOOL(5); int converted; CHECK_ENCODING_CONVERSION_ARGS(PG_WIN1250, PG_LATIN2); converted = local2local(src, dest, len, PG_WIN1250, PG_LATIN2, win1250_2_iso88592, noError); PG_RETURN_INT32(converted); }