Line data Source code
1 : /*-------------------------------------------------------------------------
2 : *
3 : * LATIN2 and WIN1250
4 : *
5 : * Portions Copyright (c) 1996-2024, 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 6 : PG_MODULE_MAGIC;
19 :
20 6 : PG_FUNCTION_INFO_V1(latin2_to_mic);
21 6 : PG_FUNCTION_INFO_V1(mic_to_latin2);
22 6 : PG_FUNCTION_INFO_V1(win1250_to_mic);
23 6 : PG_FUNCTION_INFO_V1(mic_to_win1250);
24 6 : PG_FUNCTION_INFO_V1(latin2_to_win1250);
25 6 : PG_FUNCTION_INFO_V1(win1250_to_latin2);
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 : /* WIN1250 to ISO-8859-2 */
42 : static const unsigned char win1250_2_iso88592[] = {
43 : 0x80, 0x81, 0x82, 0x83, 0x84, 0x85, 0x86, 0x87,
44 : 0x88, 0x89, 0xA9, 0x8B, 0xA6, 0xAB, 0xAE, 0xAC,
45 : 0x90, 0x91, 0x92, 0x93, 0x94, 0x95, 0x96, 0x97,
46 : 0x98, 0x99, 0xB9, 0x9B, 0xB6, 0xBB, 0xBE, 0xBC,
47 : 0xA0, 0xB7, 0xA2, 0xA3, 0xA4, 0xA1, 0x00, 0xA7,
48 : 0xA8, 0x00, 0xAA, 0x00, 0x00, 0xAD, 0x00, 0xAF,
49 : 0xB0, 0x00, 0xB2, 0xB3, 0xB4, 0x00, 0x00, 0x00,
50 : 0xB8, 0xB1, 0xBA, 0x00, 0xA5, 0xBD, 0xB5, 0xBF,
51 : 0xC0, 0xC1, 0xC2, 0xC3, 0xC4, 0xC5, 0xC6, 0xC7,
52 : 0xC8, 0xC9, 0xCA, 0xCB, 0xCC, 0xCD, 0xCE, 0xCF,
53 : 0xD0, 0xD1, 0xD2, 0xD3, 0xD4, 0xD5, 0xD6, 0xD7,
54 : 0xD8, 0xD9, 0xDA, 0xDB, 0xDC, 0xDD, 0xDE, 0xDF,
55 : 0xE0, 0xE1, 0xE2, 0xE3, 0xE4, 0xE5, 0xE6, 0xE7,
56 : 0xE8, 0xE9, 0xEA, 0xEB, 0xEC, 0xED, 0xEE, 0xEF,
57 : 0xF0, 0xF1, 0xF2, 0xF3, 0xF4, 0xF5, 0xF6, 0xF7,
58 : 0xF8, 0xF9, 0xFA, 0xFB, 0xFC, 0xFD, 0xFE, 0xFF
59 : };
60 :
61 : /* ISO-8859-2 to WIN1250 */
62 : static const unsigned char iso88592_2_win1250[] = {
63 : 0x80, 0x81, 0x82, 0x83, 0x84, 0x85, 0x86, 0x87,
64 : 0x88, 0x89, 0x00, 0x8B, 0x00, 0x00, 0x00, 0x00,
65 : 0x90, 0x91, 0x92, 0x93, 0x94, 0x95, 0x96, 0x97,
66 : 0x98, 0x99, 0x00, 0x9B, 0x00, 0x00, 0x00, 0x00,
67 : 0xA0, 0xA5, 0xA2, 0xA3, 0xA4, 0xBC, 0x8C, 0xA7,
68 : 0xA8, 0x8A, 0xAA, 0x8D, 0x8F, 0xAD, 0x8E, 0xAF,
69 : 0xB0, 0xB9, 0xB2, 0xB3, 0xB4, 0xBE, 0x9C, 0xA1,
70 : 0xB8, 0x9A, 0xBA, 0x9D, 0x9F, 0xBD, 0x9E, 0xBF,
71 : 0xC0, 0xC1, 0xC2, 0xC3, 0xC4, 0xC5, 0xC6, 0xC7,
72 : 0xC8, 0xC9, 0xCA, 0xCB, 0xCC, 0xCD, 0xCE, 0xCF,
73 : 0xD0, 0xD1, 0xD2, 0xD3, 0xD4, 0xD5, 0xD6, 0xD7,
74 : 0xD8, 0xD9, 0xDA, 0xDB, 0xDC, 0xDD, 0xDE, 0xDF,
75 : 0xE0, 0xE1, 0xE2, 0xE3, 0xE4, 0xE5, 0xE6, 0xE7,
76 : 0xE8, 0xE9, 0xEA, 0xEB, 0xEC, 0xED, 0xEE, 0xEF,
77 : 0xF0, 0xF1, 0xF2, 0xF3, 0xF4, 0xF5, 0xF6, 0xF7,
78 : 0xF8, 0xF9, 0xFA, 0xFB, 0xFC, 0xFD, 0xFE, 0xFF
79 : };
80 :
81 :
82 : Datum
83 6 : latin2_to_mic(PG_FUNCTION_ARGS)
84 : {
85 6 : unsigned char *src = (unsigned char *) PG_GETARG_CSTRING(2);
86 6 : unsigned char *dest = (unsigned char *) PG_GETARG_CSTRING(3);
87 6 : int len = PG_GETARG_INT32(4);
88 6 : bool noError = PG_GETARG_BOOL(5);
89 : int converted;
90 :
91 6 : CHECK_ENCODING_CONVERSION_ARGS(PG_LATIN2, PG_MULE_INTERNAL);
92 :
93 6 : converted = latin2mic(src, dest, len, LC_ISO8859_2, PG_LATIN2, noError);
94 :
95 6 : PG_RETURN_INT32(converted);
96 : }
97 :
98 : Datum
99 6 : mic_to_latin2(PG_FUNCTION_ARGS)
100 : {
101 6 : unsigned char *src = (unsigned char *) PG_GETARG_CSTRING(2);
102 6 : unsigned char *dest = (unsigned char *) PG_GETARG_CSTRING(3);
103 6 : int len = PG_GETARG_INT32(4);
104 6 : bool noError = PG_GETARG_BOOL(5);
105 : int converted;
106 :
107 6 : CHECK_ENCODING_CONVERSION_ARGS(PG_MULE_INTERNAL, PG_LATIN2);
108 :
109 6 : converted = mic2latin(src, dest, len, LC_ISO8859_2, PG_LATIN2, noError);
110 :
111 6 : PG_RETURN_INT32(converted);
112 : }
113 :
114 : Datum
115 6 : win1250_to_mic(PG_FUNCTION_ARGS)
116 : {
117 6 : unsigned char *src = (unsigned char *) PG_GETARG_CSTRING(2);
118 6 : unsigned char *dest = (unsigned char *) PG_GETARG_CSTRING(3);
119 6 : int len = PG_GETARG_INT32(4);
120 6 : bool noError = PG_GETARG_BOOL(5);
121 : int converted;
122 :
123 6 : CHECK_ENCODING_CONVERSION_ARGS(PG_WIN1250, PG_MULE_INTERNAL);
124 :
125 6 : converted = latin2mic_with_table(src, dest, len, LC_ISO8859_2, PG_WIN1250,
126 : win1250_2_iso88592, noError);
127 :
128 6 : PG_RETURN_INT32(converted);
129 : }
130 :
131 : Datum
132 6 : mic_to_win1250(PG_FUNCTION_ARGS)
133 : {
134 6 : unsigned char *src = (unsigned char *) PG_GETARG_CSTRING(2);
135 6 : unsigned char *dest = (unsigned char *) PG_GETARG_CSTRING(3);
136 6 : int len = PG_GETARG_INT32(4);
137 6 : bool noError = PG_GETARG_BOOL(5);
138 : int converted;
139 :
140 6 : CHECK_ENCODING_CONVERSION_ARGS(PG_MULE_INTERNAL, PG_WIN1250);
141 :
142 6 : converted = mic2latin_with_table(src, dest, len, LC_ISO8859_2, PG_WIN1250,
143 : iso88592_2_win1250, noError);
144 :
145 6 : PG_RETURN_INT32(converted);
146 : }
147 :
148 : Datum
149 6 : latin2_to_win1250(PG_FUNCTION_ARGS)
150 : {
151 6 : unsigned char *src = (unsigned char *) PG_GETARG_CSTRING(2);
152 6 : unsigned char *dest = (unsigned char *) PG_GETARG_CSTRING(3);
153 6 : int len = PG_GETARG_INT32(4);
154 6 : bool noError = PG_GETARG_BOOL(5);
155 : int converted;
156 :
157 6 : CHECK_ENCODING_CONVERSION_ARGS(PG_LATIN2, PG_WIN1250);
158 :
159 6 : converted = local2local(src, dest, len, PG_LATIN2, PG_WIN1250,
160 : iso88592_2_win1250, noError);
161 :
162 6 : PG_RETURN_INT32(converted);
163 : }
164 :
165 : Datum
166 6 : win1250_to_latin2(PG_FUNCTION_ARGS)
167 : {
168 6 : unsigned char *src = (unsigned char *) PG_GETARG_CSTRING(2);
169 6 : unsigned char *dest = (unsigned char *) PG_GETARG_CSTRING(3);
170 6 : int len = PG_GETARG_INT32(4);
171 6 : bool noError = PG_GETARG_BOOL(5);
172 : int converted;
173 :
174 6 : CHECK_ENCODING_CONVERSION_ARGS(PG_WIN1250, PG_LATIN2);
175 :
176 6 : converted = local2local(src, dest, len, PG_WIN1250, PG_LATIN2,
177 : win1250_2_iso88592, noError);
178 :
179 6 : PG_RETURN_INT32(converted);
180 : }
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