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/*-------------------------------------------------------------------------
*
* EUC_TW <--> UTF8
*
* Portions Copyright (c) 1996-2013, PostgreSQL Global Development Group
* Portions Copyright (c) 1994, Regents of the University of California
*
* IDENTIFICATION
* src/backend/utils/mb/conversion_procs/utf8_and_euc_tw/utf8_and_euc_tw.c
*
*-------------------------------------------------------------------------
*/
#include "postgres.h"
#include "fmgr.h"
#include "mb/pg_wchar.h"
#include "../../Unicode/euc_tw_to_utf8.map"
#include "../../Unicode/utf8_to_euc_tw.map"
PG_MODULE_MAGIC;
PG_FUNCTION_INFO_V1(euc_tw_to_utf8);
PG_FUNCTION_INFO_V1(utf8_to_euc_tw);
extern Datum euc_tw_to_utf8(PG_FUNCTION_ARGS);
extern Datum utf8_to_euc_tw(PG_FUNCTION_ARGS);
/* ----------
* 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
* ) returns VOID;
* ----------
*/
Datum
euc_tw_to_utf8(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);
CHECK_ENCODING_CONVERSION_ARGS(PG_EUC_TW, PG_UTF8);
LocalToUtf(src, dest, LUmapEUC_TW, NULL,
sizeof(LUmapEUC_TW) / sizeof(pg_local_to_utf), 0, PG_EUC_TW, len);
PG_RETURN_VOID();
}
Datum
utf8_to_euc_tw(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);
CHECK_ENCODING_CONVERSION_ARGS(PG_UTF8, PG_EUC_TW);
UtfToLocal(src, dest, ULmapEUC_TW, NULL,
sizeof(ULmapEUC_TW) / sizeof(pg_utf_to_local), 0, PG_EUC_TW, len);
PG_RETURN_VOID();
}
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