PostgreSQL Source Code: src/backend/utils/mb/conversion_procs/latin2_and_win1250/latin2_and_win1250.c Source File

PostgreSQL Source Code git master
latin2_and_win1250.c
Go to the documentation of this file.
1/*-------------------------------------------------------------------------
2 *
3 * LATIN2 and WIN1250
4 *
5 * Portions Copyright (c) 1996-2025, 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/latin2_and_win1250/latin2_and_win1250.c
10 *
11 *-------------------------------------------------------------------------
12 */
13
14#include "postgres.h"
15#include "fmgr.h"
16#include "mb/pg_wchar.h"
17
18 PG_MODULE_MAGIC_EXT(
19 .name = "latin2_and_win1250",
20 .version = PG_VERSION
21);
22
23 PG_FUNCTION_INFO_V1(latin2_to_mic);
24 PG_FUNCTION_INFO_V1(mic_to_latin2);
25 PG_FUNCTION_INFO_V1(win1250_to_mic);
26 PG_FUNCTION_INFO_V1(mic_to_win1250);
27 PG_FUNCTION_INFO_V1(latin2_to_win1250);
28 PG_FUNCTION_INFO_V1(win1250_to_latin2);
29
30/* ----------
31 * conv_proc(
32 * INTEGER, -- source encoding id
33 * INTEGER, -- destination encoding id
34 * CSTRING, -- source string (null terminated C string)
35 * CSTRING, -- destination string (null terminated C string)
36 * INTEGER, -- source string length
37 * BOOL -- if true, don't throw an error if conversion fails
38 * ) returns INTEGER;
39 *
40 * Returns the number of bytes successfully converted.
41 * ----------
42 */
43
44/* WIN1250 to ISO-8859-2 */
45 static const unsigned char win1250_2_iso88592[] = {
46 0x80, 0x81, 0x82, 0x83, 0x84, 0x85, 0x86, 0x87,
47 0x88, 0x89, 0xA9, 0x8B, 0xA6, 0xAB, 0xAE, 0xAC,
48 0x90, 0x91, 0x92, 0x93, 0x94, 0x95, 0x96, 0x97,
49 0x98, 0x99, 0xB9, 0x9B, 0xB6, 0xBB, 0xBE, 0xBC,
50 0xA0, 0xB7, 0xA2, 0xA3, 0xA4, 0xA1, 0x00, 0xA7,
51 0xA8, 0x00, 0xAA, 0x00, 0x00, 0xAD, 0x00, 0xAF,
52 0xB0, 0x00, 0xB2, 0xB3, 0xB4, 0x00, 0x00, 0x00,
53 0xB8, 0xB1, 0xBA, 0x00, 0xA5, 0xBD, 0xB5, 0xBF,
54 0xC0, 0xC1, 0xC2, 0xC3, 0xC4, 0xC5, 0xC6, 0xC7,
55 0xC8, 0xC9, 0xCA, 0xCB, 0xCC, 0xCD, 0xCE, 0xCF,
56 0xD0, 0xD1, 0xD2, 0xD3, 0xD4, 0xD5, 0xD6, 0xD7,
57 0xD8, 0xD9, 0xDA, 0xDB, 0xDC, 0xDD, 0xDE, 0xDF,
58 0xE0, 0xE1, 0xE2, 0xE3, 0xE4, 0xE5, 0xE6, 0xE7,
59 0xE8, 0xE9, 0xEA, 0xEB, 0xEC, 0xED, 0xEE, 0xEF,
60 0xF0, 0xF1, 0xF2, 0xF3, 0xF4, 0xF5, 0xF6, 0xF7,
61 0xF8, 0xF9, 0xFA, 0xFB, 0xFC, 0xFD, 0xFE, 0xFF
62};
63
64/* ISO-8859-2 to WIN1250 */
65 static const unsigned char iso88592_2_win1250[] = {
66 0x80, 0x81, 0x82, 0x83, 0x84, 0x85, 0x86, 0x87,
67 0x88, 0x89, 0x00, 0x8B, 0x00, 0x00, 0x00, 0x00,
68 0x90, 0x91, 0x92, 0x93, 0x94, 0x95, 0x96, 0x97,
69 0x98, 0x99, 0x00, 0x9B, 0x00, 0x00, 0x00, 0x00,
70 0xA0, 0xA5, 0xA2, 0xA3, 0xA4, 0xBC, 0x8C, 0xA7,
71 0xA8, 0x8A, 0xAA, 0x8D, 0x8F, 0xAD, 0x8E, 0xAF,
72 0xB0, 0xB9, 0xB2, 0xB3, 0xB4, 0xBE, 0x9C, 0xA1,
73 0xB8, 0x9A, 0xBA, 0x9D, 0x9F, 0xBD, 0x9E, 0xBF,
74 0xC0, 0xC1, 0xC2, 0xC3, 0xC4, 0xC5, 0xC6, 0xC7,
75 0xC8, 0xC9, 0xCA, 0xCB, 0xCC, 0xCD, 0xCE, 0xCF,
76 0xD0, 0xD1, 0xD2, 0xD3, 0xD4, 0xD5, 0xD6, 0xD7,
77 0xD8, 0xD9, 0xDA, 0xDB, 0xDC, 0xDD, 0xDE, 0xDF,
78 0xE0, 0xE1, 0xE2, 0xE3, 0xE4, 0xE5, 0xE6, 0xE7,
79 0xE8, 0xE9, 0xEA, 0xEB, 0xEC, 0xED, 0xEE, 0xEF,
80 0xF0, 0xF1, 0xF2, 0xF3, 0xF4, 0xF5, 0xF6, 0xF7,
81 0xF8, 0xF9, 0xFA, 0xFB, 0xFC, 0xFD, 0xFE, 0xFF
82};
83
84
85Datum
86 latin2_to_mic(PG_FUNCTION_ARGS)
87{
88 unsigned char *src = (unsigned char *) PG_GETARG_CSTRING(2);
89 unsigned char *dest = (unsigned char *) PG_GETARG_CSTRING(3);
90 int len = PG_GETARG_INT32(4);
91 bool noError = PG_GETARG_BOOL(5);
92 int converted;
93
94 CHECK_ENCODING_CONVERSION_ARGS(PG_LATIN2, PG_MULE_INTERNAL);
95
96 converted = latin2mic(src, dest, len, LC_ISO8859_2, PG_LATIN2, noError);
97
98 PG_RETURN_INT32(converted);
99}
100
101Datum
102 mic_to_latin2(PG_FUNCTION_ARGS)
103{
104 unsigned char *src = (unsigned char *) PG_GETARG_CSTRING(2);
105 unsigned char *dest = (unsigned char *) PG_GETARG_CSTRING(3);
106 int len = PG_GETARG_INT32(4);
107 bool noError = PG_GETARG_BOOL(5);
108 int converted;
109
110 CHECK_ENCODING_CONVERSION_ARGS(PG_MULE_INTERNAL, PG_LATIN2);
111
112 converted = mic2latin(src, dest, len, LC_ISO8859_2, PG_LATIN2, noError);
113
114 PG_RETURN_INT32(converted);
115}
116
117Datum
118 win1250_to_mic(PG_FUNCTION_ARGS)
119{
120 unsigned char *src = (unsigned char *) PG_GETARG_CSTRING(2);
121 unsigned char *dest = (unsigned char *) PG_GETARG_CSTRING(3);
122 int len = PG_GETARG_INT32(4);
123 bool noError = PG_GETARG_BOOL(5);
124 int converted;
125
126 CHECK_ENCODING_CONVERSION_ARGS(PG_WIN1250, PG_MULE_INTERNAL);
127
128 converted = latin2mic_with_table(src, dest, len, LC_ISO8859_2, PG_WIN1250,
129 win1250_2_iso88592, noError);
130
131 PG_RETURN_INT32(converted);
132}
133
134Datum
135 mic_to_win1250(PG_FUNCTION_ARGS)
136{
137 unsigned char *src = (unsigned char *) PG_GETARG_CSTRING(2);
138 unsigned char *dest = (unsigned char *) PG_GETARG_CSTRING(3);
139 int len = PG_GETARG_INT32(4);
140 bool noError = PG_GETARG_BOOL(5);
141 int converted;
142
143 CHECK_ENCODING_CONVERSION_ARGS(PG_MULE_INTERNAL, PG_WIN1250);
144
145 converted = mic2latin_with_table(src, dest, len, LC_ISO8859_2, PG_WIN1250,
146 iso88592_2_win1250, noError);
147
148 PG_RETURN_INT32(converted);
149}
150
151Datum
152 latin2_to_win1250(PG_FUNCTION_ARGS)
153{
154 unsigned char *src = (unsigned char *) PG_GETARG_CSTRING(2);
155 unsigned char *dest = (unsigned char *) PG_GETARG_CSTRING(3);
156 int len = PG_GETARG_INT32(4);
157 bool noError = PG_GETARG_BOOL(5);
158 int converted;
159
160 CHECK_ENCODING_CONVERSION_ARGS(PG_LATIN2, PG_WIN1250);
161
162 converted = local2local(src, dest, len, PG_LATIN2, PG_WIN1250,
163 iso88592_2_win1250, noError);
164
165 PG_RETURN_INT32(converted);
166}
167
168Datum
169 win1250_to_latin2(PG_FUNCTION_ARGS)
170{
171 unsigned char *src = (unsigned char *) PG_GETARG_CSTRING(2);
172 unsigned char *dest = (unsigned char *) PG_GETARG_CSTRING(3);
173 int len = PG_GETARG_INT32(4);
174 bool noError = PG_GETARG_BOOL(5);
175 int converted;
176
177 CHECK_ENCODING_CONVERSION_ARGS(PG_WIN1250, PG_LATIN2);
178
179 converted = local2local(src, dest, len, PG_WIN1250, PG_LATIN2,
180 win1250_2_iso88592, noError);
181
182 PG_RETURN_INT32(converted);
183}
int mic2latin_with_table(const unsigned char *mic, unsigned char *p, int len, int lc, int encoding, const unsigned char *tab, bool noError)
Definition: conv.c:257
int latin2mic_with_table(const unsigned char *l, unsigned char *p, int len, int lc, int encoding, const unsigned char *tab, bool noError)
Definition: conv.c:194
int mic2latin(const unsigned char *mic, unsigned char *p, int len, int lc, int encoding, bool noError)
Definition: conv.c:127
int local2local(const unsigned char *l, unsigned char *p, int len, int src_encoding, int dest_encoding, const unsigned char *tab, bool noError)
Definition: conv.c:33
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
Datum mic_to_latin2(PG_FUNCTION_ARGS)
static const unsigned char win1250_2_iso88592[]
static const unsigned char iso88592_2_win1250[]
Datum latin2_to_win1250(PG_FUNCTION_ARGS)
PG_MODULE_MAGIC_EXT(.name="latin2_and_win1250",.version=PG_VERSION)
Datum mic_to_win1250(PG_FUNCTION_ARGS)
Datum latin2_to_mic(PG_FUNCTION_ARGS)
Datum win1250_to_mic(PG_FUNCTION_ARGS)
Datum win1250_to_latin2(PG_FUNCTION_ARGS)
PG_FUNCTION_INFO_V1(latin2_to_mic)
dest
const void size_t len
@ PG_MULE_INTERNAL
Definition: pg_wchar.h:233
@ PG_LATIN2
Definition: pg_wchar.h:235
@ PG_WIN1250
Definition: pg_wchar.h:255
#define LC_ISO8859_2
Definition: pg_wchar.h:106
#define CHECK_ENCODING_CONVERSION_ARGS(srcencoding, destencoding)
Definition: pg_wchar.h:507
uint64_t Datum
Definition: postgres.h:70
const char * name

AltStyle によって変換されたページ (->オリジナル) /