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utf8_and_euc2004.c

1/*-------------------------------------------------------------------------

2 *

3 * EUC_JIS_2004 <--> UTF8

4 *

7 *

8 * IDENTIFICATION

9 * src/backend/utils/mb/conversion_procs/utf8_and_euc2004/utf8_and_euc2004.c

10 *

11 *-------------------------------------------------------------------------

12 */

13

14#include "postgres.h"

15#include "fmgr.h"

16#include "mb/pg_wchar.h"

17#include "../../Unicode/euc_jis_2004_to_utf8.map"

18#include "../../Unicode/utf8_to_euc_jis_2004.map"

19

20 PG_MODULE_MAGIC_EXT(

21 .name = "utf8_and_euc2004",

22 .version = PG_VERSION

23);

24

25 PG_FUNCTION_INFO_V1(euc_jis_2004_to_utf8);

26 PG_FUNCTION_INFO_V1(utf8_to_euc_jis_2004);

27

28/* ----------

29 * conv_proc(

30 * INTEGER, -- source encoding id

31 * INTEGER, -- destination encoding id

32 * CSTRING, -- source string (null terminated C string)

33 * CSTRING, -- destination string (null terminated C string)

34 * INTEGER, -- source string length

35 * BOOL -- if true, don't throw an error if conversion fails

36 * ) returns INTEGER;

37 *

38 * Returns the number of bytes successfully converted.

39 * ----------

40 */

41Datum

42 euc_jis_2004_to_utf8(PG_FUNCTION_ARGS)

43{

44 unsigned char *src = (unsigned char *) PG_GETARG_CSTRING(2);

45 unsigned char *dest = (unsigned char *) PG_GETARG_CSTRING(3);

46 int len = PG_GETARG_INT32(4);

47 bool noError = PG_GETARG_BOOL(5);

48 int converted;

49

50 CHECK_ENCODING_CONVERSION_ARGS(PG_EUC_JIS_2004, PG_UTF8);

51

52 converted = LocalToUtf(src, len, dest,

53 &euc_jis_2004_to_unicode_tree,

54 LUmapEUC_JIS_2004_combined, lengthof(LUmapEUC_JIS_2004_combined),

55 NULL,

56 PG_EUC_JIS_2004,

57 noError);

58

59 PG_RETURN_INT32(converted);

60}

61

62Datum

63 utf8_to_euc_jis_2004(PG_FUNCTION_ARGS)

64{

65 unsigned char *src = (unsigned char *) PG_GETARG_CSTRING(2);

66 unsigned char *dest = (unsigned char *) PG_GETARG_CSTRING(3);

67 int len = PG_GETARG_INT32(4);

68 bool noError = PG_GETARG_BOOL(5);

69 int converted;

70

71 CHECK_ENCODING_CONVERSION_ARGS(PG_UTF8, PG_EUC_JIS_2004);

72

73 converted = UtfToLocal(src, len, dest,

74 &euc_jis_2004_from_unicode_tree,

75 ULmapEUC_JIS_2004_combined, lengthof(ULmapEUC_JIS_2004_combined),

76 NULL,

77 PG_EUC_JIS_2004,

78 noError);

79

80 PG_RETURN_INT32(converted);

81}

lengthof

#define lengthof(array)

Definition: c.h:787

UtfToLocal

int UtfToLocal(const unsigned char *utf, int len, unsigned char *iso, const pg_mb_radix_tree *map, const pg_utf_to_local_combined *cmap, int cmapsize, utf_local_conversion_func conv_func, int encoding, bool noError)

Definition: conv.c:507

LocalToUtf

int LocalToUtf(const unsigned char *iso, int len, unsigned char *utf, const pg_mb_radix_tree *map, const pg_local_to_utf_combined *cmap, int cmapsize, utf_local_conversion_func conv_func, int encoding, bool noError)

Definition: conv.c:717

fmgr.h

PG_GETARG_CSTRING

#define PG_GETARG_CSTRING(n)

Definition: fmgr.h:277

PG_RETURN_INT32

#define PG_RETURN_INT32(x)

Definition: fmgr.h:354

PG_GETARG_INT32

#define PG_GETARG_INT32(n)

Definition: fmgr.h:269

PG_GETARG_BOOL