PostgreSQL Source Code  git master
utf8_and_johab.c
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1 /*-------------------------------------------------------------------------
2  *
3  * JOHAB <--> UTF8
4  *
5  * Portions Copyright (c) 1996-2021, PostgreSQL Global Development Group
6  * Portions Copyright (c) 1994, Regents of the University of California
7  *
8  * IDENTIFICATION
9  * src/backend/utils/mb/conversion_procs/utf8_and_johab/utf8_and_johab.c
10  *
11  *-------------------------------------------------------------------------
12  */
13 
14 #include "postgres.h"
15 #include "fmgr.h"
16 #include "mb/pg_wchar.h"
17 #include "../../Unicode/johab_to_utf8.map"
18 #include "../../Unicode/utf8_to_johab.map"
19 
21 
24 
25 /* ----------
26  * conv_proc(
27  * INTEGER, -- source encoding id
28  * INTEGER, -- destination encoding id
29  * CSTRING, -- source string (null terminated C string)
30  * CSTRING, -- destination string (null terminated C string)
31  * INTEGER, -- source string length
32  * BOOL -- if true, don't throw an error if conversion fails
33  * ) returns INTEGER;
34  *
35  * Returns the number of bytes successfully converted.
36  * ----------
37  */
38 Datum
40 {
41  unsigned char *src = (unsigned char *) PG_GETARG_CSTRING(2);
42  unsigned char *dest = (unsigned char *) PG_GETARG_CSTRING(3);
43  int len = PG_GETARG_INT32(4);
44  bool noError = PG_GETARG_BOOL(5);
45  int converted;
46 
48 
49  converted = LocalToUtf(src, len, dest,
50  &johab_to_unicode_tree,
51  NULL, 0,
52  NULL,
53  PG_JOHAB,
54  noError);
55 
56  PG_RETURN_INT32(converted);
57 }
58 
59 Datum
61 {
62  unsigned char *src = (unsigned char *) PG_GETARG_CSTRING(2);
63  unsigned char *dest = (unsigned char *) PG_GETARG_CSTRING(3);
64  int len = PG_GETARG_INT32(4);
65  bool noError = PG_GETARG_BOOL(5);
66  int converted;
67 
69 
70  converted = UtfToLocal(src, len, dest,
71  &johab_from_unicode_tree,
72  NULL, 0,
73  NULL,
74  PG_JOHAB,
75  noError);
76 
77  PG_RETURN_INT32(converted);
78 }
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
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
#define PG_GETARG_CSTRING(n)
Definition: fmgr.h:277
#define PG_RETURN_INT32(x)
Definition: fmgr.h:354
#define PG_GETARG_INT32(n)
Definition: fmgr.h:269
#define PG_GETARG_BOOL(n)
Definition: fmgr.h:274
#define PG_FUNCTION_ARGS
Definition: fmgr.h:193
const void size_t len
@ PG_JOHAB
Definition: pg_wchar.h:267
@ PG_UTF8
Definition: pg_wchar.h:230
#define CHECK_ENCODING_CONVERSION_ARGS(srcencoding, destencoding)
Definition: pg_wchar.h:511
uintptr_t Datum
Definition: postgres.h:411
PG_FUNCTION_INFO_V1(johab_to_utf8)
Datum johab_to_utf8(PG_FUNCTION_ARGS)
PG_MODULE_MAGIC
Datum utf8_to_johab(PG_FUNCTION_ARGS)