text: /*-------------------------------------------------------------------------
   *
   *	  SJIS <--> UTF8
   *
   * Portions Copyright (c) 1996-2009, PostgreSQL Global Development Group
   * Portions Copyright (c) 1994, Regents of the University of California
   *
   * IDENTIFICATION
   *	  $PostgreSQL$
   *
   *-------------------------------------------------------------------------
   */
  
  #include "postgres.h"
  #include "fmgr.h"
  #include "mb/pg_wchar.h"
  #include "../../Unicode/sjis_to_utf8.map"
  #include "../../Unicode/utf8_to_sjis.map"
  
  PG_MODULE_MAGIC;
  
  PG_FUNCTION_INFO_V1(sjis_to_utf8);
  PG_FUNCTION_INFO_V1(utf8_to_sjis);
  
  extern Datum sjis_to_utf8(PG_FUNCTION_ARGS);
  extern Datum utf8_to_sjis(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
  sjis_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_SJIS, PG_UTF8);
  
  	LocalToUtf(src, dest, LUmapSJIS, NULL,
  			   sizeof(LUmapSJIS) / sizeof(pg_local_to_utf), 0, PG_SJIS, len);
  
  	PG_RETURN_VOID();
  }
  
  Datum
  utf8_to_sjis(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_SJIS);
  
  	UtfToLocal(src, dest, ULmapSJIS, NULL,
  			   sizeof(ULmapSJIS) / sizeof(pg_utf_to_local), 0, PG_SJIS, len);
  
  	PG_RETURN_VOID();
  }
  