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/*-------------------------------------------------------------------------
*
* UTF8 and Cyrillic
*
* Portions Copyright (c) 1996-2017, PostgreSQL Global Development Group
* Portions Copyright (c) 1994, Regents of the University of California
*
* IDENTIFICATION
* src/backend/utils/mb/conversion_procs/utf8_and_cyrillic/utf8_and_cyrillic.c
*
*-------------------------------------------------------------------------
*/
#include "postgres.h"
#include "fmgr.h"
#include "mb/pg_wchar.h"
#include "../../Unicode/utf8_to_koi8r.map"
#include "../../Unicode/koi8r_to_utf8.map"
#include "../../Unicode/utf8_to_koi8u.map"
#include "../../Unicode/koi8u_to_utf8.map"
PG_MODULE_MAGIC;
PG_FUNCTION_INFO_V1(utf8_to_koi8r);
PG_FUNCTION_INFO_V1(koi8r_to_utf8);
PG_FUNCTION_INFO_V1(utf8_to_koi8u);
PG_FUNCTION_INFO_V1(koi8u_to_utf8);
/* ----------
* 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
utf8_to_koi8r(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_KOI8R);
UtfToLocal(src, len, dest,
ULmapKOI8R, lengthof(ULmapKOI8R),
NULL, 0,
NULL,
PG_KOI8R);
PG_RETURN_VOID();
}
Datum
koi8r_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_KOI8R, PG_UTF8);
LocalToUtf(src, len, dest,
LUmapKOI8R, lengthof(LUmapKOI8R),
NULL, 0,
NULL,
PG_KOI8R);
PG_RETURN_VOID();
}
Datum
utf8_to_koi8u(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_KOI8U);
UtfToLocal(src, len, dest,
ULmapKOI8U, lengthof(ULmapKOI8U),
NULL, 0,
NULL,
PG_KOI8U);
PG_RETURN_VOID();
}
Datum
koi8u_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_KOI8U, PG_UTF8);
LocalToUtf(src, len, dest,
LUmapKOI8U, lengthof(LUmapKOI8U),
NULL, 0,
NULL,
PG_KOI8U);
PG_RETURN_VOID();
}
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