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/*-------------------------------------------------------------------------
*
* JOHAB <--> UTF8
*
* 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/utf8_and_johab/utf8_and_johab.c
*
*-------------------------------------------------------------------------
*/
#include "postgres.h"
#include "fmgr.h"
#include "mb/pg_wchar.h"
#include "../../Unicode/johab_to_utf8.map"
#include "../../Unicode/utf8_to_johab.map"
PG_MODULE_MAGIC_EXT(
.name = "utf8_and_johab",
.version = PG_VERSION
);
PG_FUNCTION_INFO_V1(johab_to_utf8);
PG_FUNCTION_INFO_V1(utf8_to_johab);
/* ----------
* 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.
* ----------
*/
Datum
johab_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);
bool noError = PG_GETARG_BOOL(5);
int converted;
CHECK_ENCODING_CONVERSION_ARGS(PG_JOHAB, PG_UTF8);
converted = LocalToUtf(src, len, dest,
&johab_to_unicode_tree,
NULL, 0,
NULL,
PG_JOHAB,
noError);
PG_RETURN_INT32(converted);
}
Datum
utf8_to_johab(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_UTF8, PG_JOHAB);
converted = UtfToLocal(src, len, dest,
&johab_from_unicode_tree,
NULL, 0,
NULL,
PG_JOHAB,
noError);
PG_RETURN_INT32(converted);
}
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