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Sourcecode: postgresql-8.4 version File versions  Download package

ascii_and_mic.c
/*-------------------------------------------------------------------------
 *
 *      ASCII and MULE_INTERNAL
 *
 * Portions Copyright (c) 1996-2009, PostgreSQL Global Development Group
 * Portions Copyright (c) 1994, Regents of the University of California
 *
 * IDENTIFICATION
 *      $PostgreSQL: pgsql/src/backend/utils/mb/conversion_procs/ascii_and_mic/ascii_and_mic.c,v 1.16 2009/01/29 19:23:39 tgl Exp $
 *
 *-------------------------------------------------------------------------
 */

#include "postgres.h"
#include "fmgr.h"
#include "mb/pg_wchar.h"

PG_MODULE_MAGIC;

PG_FUNCTION_INFO_V1(ascii_to_mic);
PG_FUNCTION_INFO_V1(mic_to_ascii);

extern Datum ascii_to_mic(PG_FUNCTION_ARGS);
extern Datum mic_to_ascii(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
ascii_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);

      CHECK_ENCODING_CONVERSION_ARGS(PG_SQL_ASCII, PG_MULE_INTERNAL);

      pg_ascii2mic(src, dest, len);

      PG_RETURN_VOID();
}

Datum
mic_to_ascii(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_MULE_INTERNAL, PG_SQL_ASCII);

      pg_mic2ascii(src, dest, len);

      PG_RETURN_VOID();
}

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