PostgreSQL Source Code  git master
latin_and_mic.c
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1 /*-------------------------------------------------------------------------
2  *
3  * LATINn and MULE_INTERNAL
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/latin_and_mic/latin_and_mic.c
10  *
11  *-------------------------------------------------------------------------
12  */
13 
14 #include "postgres.h"
15 #include "fmgr.h"
16 #include "mb/pg_wchar.h"
17 
19 
26 
27 /* ----------
28  * conv_proc(
29  * INTEGER, -- source encoding id
30  * INTEGER, -- destination encoding id
31  * CSTRING, -- source string (null terminated C string)
32  * CSTRING, -- destination string (null terminated C string)
33  * INTEGER, -- source string length
34  * BOOL -- if true, don't throw an error if conversion fails
35  * ) returns INTEGER;
36  *
37  * Returns the number of bytes successfully converted.
38  * ----------
39  */
40 
41 
42 Datum
44 {
45  unsigned char *src = (unsigned char *) PG_GETARG_CSTRING(2);
46  unsigned char *dest = (unsigned char *) PG_GETARG_CSTRING(3);
47  int len = PG_GETARG_INT32(4);
48  bool noError = PG_GETARG_BOOL(5);
49  int converted;
50 
52 
53  converted = latin2mic(src, dest, len, LC_ISO8859_1, PG_LATIN1, noError);
54 
55  PG_RETURN_INT32(converted);
56 }
57 
58 Datum
60 {
61  unsigned char *src = (unsigned char *) PG_GETARG_CSTRING(2);
62  unsigned char *dest = (unsigned char *) PG_GETARG_CSTRING(3);
63  int len = PG_GETARG_INT32(4);
64  bool noError = PG_GETARG_BOOL(5);
65  int converted;
66 
68 
69  converted = mic2latin(src, dest, len, LC_ISO8859_1, PG_LATIN1, noError);
70 
71  PG_RETURN_INT32(converted);
72 }
73 
74 Datum
76 {
77  unsigned char *src = (unsigned char *) PG_GETARG_CSTRING(2);
78  unsigned char *dest = (unsigned char *) PG_GETARG_CSTRING(3);
79  int len = PG_GETARG_INT32(4);
80  bool noError = PG_GETARG_BOOL(5);
81  int converted;
82 
84 
85  converted = latin2mic(src, dest, len, LC_ISO8859_3, PG_LATIN3, noError);
86 
87  PG_RETURN_INT32(converted);
88 }
89 
90 Datum
92 {
93  unsigned char *src = (unsigned char *) PG_GETARG_CSTRING(2);
94  unsigned char *dest = (unsigned char *) PG_GETARG_CSTRING(3);
95  int len = PG_GETARG_INT32(4);
96  bool noError = PG_GETARG_BOOL(5);
97  int converted;
98 
100 
101  converted = mic2latin(src, dest, len, LC_ISO8859_3, PG_LATIN3, noError);
102 
103  PG_RETURN_INT32(converted);
104 }
105 
106 Datum
108 {
109  unsigned char *src = (unsigned char *) PG_GETARG_CSTRING(2);
110  unsigned char *dest = (unsigned char *) PG_GETARG_CSTRING(3);
111  int len = PG_GETARG_INT32(4);
112  bool noError = PG_GETARG_BOOL(5);
113  int converted;
114 
116 
117  converted = latin2mic(src, dest, len, LC_ISO8859_4, PG_LATIN4, noError);
118 
119  PG_RETURN_INT32(converted);
120 }
121 
122 Datum
124 {
125  unsigned char *src = (unsigned char *) PG_GETARG_CSTRING(2);
126  unsigned char *dest = (unsigned char *) PG_GETARG_CSTRING(3);
127  int len = PG_GETARG_INT32(4);
128  bool noError = PG_GETARG_BOOL(5);
129  int converted;
130 
132 
133  converted = mic2latin(src, dest, len, LC_ISO8859_4, PG_LATIN4, noError);
134 
135  PG_RETURN_INT32(converted);
136 }
int mic2latin(const unsigned char *mic, unsigned char *p, int len, int lc, int encoding, bool noError)
Definition: conv.c:127
int latin2mic(const unsigned char *l, unsigned char *p, int len, int lc, int encoding, bool noError)
Definition: conv.c:89
#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
PG_MODULE_MAGIC
Definition: latin_and_mic.c:18
Datum latin3_to_mic(PG_FUNCTION_ARGS)
Definition: latin_and_mic.c:75
PG_FUNCTION_INFO_V1(latin1_to_mic)
Datum mic_to_latin3(PG_FUNCTION_ARGS)
Definition: latin_and_mic.c:91
Datum mic_to_latin1(PG_FUNCTION_ARGS)
Definition: latin_and_mic.c:59
Datum mic_to_latin4(PG_FUNCTION_ARGS)
Datum latin1_to_mic(PG_FUNCTION_ARGS)
Definition: latin_and_mic.c:43
Datum latin4_to_mic(PG_FUNCTION_ARGS)
const void size_t len
@ PG_LATIN4
Definition: pg_wchar.h:235
@ PG_MULE_INTERNAL
Definition: pg_wchar.h:231
@ PG_LATIN3
Definition: pg_wchar.h:234
@ PG_LATIN1
Definition: pg_wchar.h:232
#define LC_ISO8859_3
Definition: pg_wchar.h:104
#define LC_ISO8859_4
Definition: pg_wchar.h:105
#define CHECK_ENCODING_CONVERSION_ARGS(srcencoding, destencoding)
Definition: pg_wchar.h:511
#define LC_ISO8859_1
Definition: pg_wchar.h:102
uintptr_t Datum
Definition: postgres.h:411