1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
|
/*
WARNING: This file was generated by dkct.
Changes you make here will be lost if dkct is run again!
You should modify the original source and run dkct on it.
Original source: dk4rec11.ctr
*/
/*
Copyright (C) 2015-2017, Dirk Krause
Redistribution and use in source and binary forms, with or without
modification, are permitted provided that the following conditions are met:
* Redistributions of source code must retain the above copyright notice,
this list of conditions and the following disclaimer.
* Redistributions in binary form must reproduce the above opyright notice,
this list of conditions and the following disclaimer in the documentation
and/or other materials provided with the distribution.
* Neither the name of the author nor the names of contributors may be used
to endorse or promote products derived from this software without specific
prior written permission.
THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS ``AS IS''
AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
ARE DISCLAIMED.
IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY
DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
(INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
/** @file dk4rec11.c The dk4rec11 module.
*/
#line 76 "dk4rec11.ctr"
#include "dk4rec11.h"
#include "dk4mem.h"
#include "dk4utf8.h"
#include "dk4utf16.h"
#line 84 "dk4rec11.ctr"
size_t
dk4recode_size_utf8_to_utf16(const char *src, dk4_er_t *erp)
{
dk4_er_t er;
dk4_utf8_decoder_t dec;
dk4_c16_t c16[4];
size_t rdb = 0;
size_t back = 0;
size_t sz;
dk4_c32_t c32;
if (NULL != src) {
/* Initialize data structures.
*/
dk4error_init(&er);
dk4utf8_init(&dec);
/* Process source string.
*/
while ('\0' != *src) {
rdb++;
switch(dk4utf8_add(&dec, (unsigned char)(*(src++)))) {
case DK4_EDSTM_FINISHED: {
c32 = dk4utf8_get(&dec);
dk4utf8_init(&dec);
sz = DK4_SIZEOF(c16,dk4_c16_t);
if (0 != dk4utf16_encode(c16, &sz, c32, &er)) {
if ((SIZE_MAX - sz) >= back) {
back += sz;
} else {
dk4error_set_simple_error_code(&er, DK4_E_MATH_OVERFLOW);
}
} else {
dk4error_set_elsize_nelem(&er, DK4_E_SYNTAX, 1, rdb);
}
} break;
case DK4_EDSTM_ERROR: {
dk4error_set_elsize_nelem(&er, DK4_E_SYNTAX, 1, rdb);
} break;
}
}
if (0 == dk4utf8_is_empty(&dec)) {
dk4error_set_elsize_nelem(&er, DK4_E_SYNTAX, 1, rdb);
}
/* Add one for the finalizer.
*/
if (SIZE_MAX == back) {
dk4error_set_simple_error_code(&er, DK4_E_MATH_OVERFLOW);
} else {
back++;
}
/* On error return 0 and pass error code.
*/
if (DK4_E_NONE != er.ec) {
back = 0;
dk4error_copy(erp, &er);
}
} else {
dk4error_set_simple_error_code(erp, DK4_E_INVALID_ARGUMENTS);
}
return back;
}
int
dk4recode_utf8_to_utf16(
dk4_c16_t *dstb, size_t szdstb, const char *src, dk4_er_t *erp
)
{
dk4_c16_t buf[8];
dk4_utf8_decoder_t dec;
size_t sz;
size_t used = 0;
size_t rdb = 0;
dk4_c32_t c32 = dkC32(0);
int back = 0;
if ((NULL != dstb) && (NULL != src) && (0 < szdstb)) {
back = 1;
dk4utf8_init(&dec);
while(('\0' != *src) && (1 == back) && (used < szdstb)) {
switch(dk4utf8_add(&dec, (unsigned char)(*(src++)))) {
case DK4_EDSTM_FINISHED: {
c32 = dk4utf8_get(&dec);
dk4utf8_init(&dec);
sz = DK4_SIZEOF(buf,dk4_c16_t);
if (0 != dk4utf16_encode(buf, &sz, c32, erp)) {
if ((szdstb - used) > sz) {
DK4_MEMCPY(&(dstb[used]),buf,(2 * sz));
used += sz;
} else {
back = 0;
dk4error_set_simple_error_code(erp, DK4_E_BUFFER_TOO_SMALL);
}
} else {
back = 0;
dk4error_set_elsize_nelem(erp, DK4_E_SYNTAX, 1, rdb);
}
} break;
case DK4_EDSTM_ERROR: {
back = 0;
dk4error_set_elsize_nelem(erp, DK4_E_SYNTAX, 1, rdb);
} break;
}
if(back) { rdb++; }
}
if (used < szdstb) {
dstb[used] = (dk4_c16_t)0U;
} else {
dstb[szdstb - 1] = (dk4_c16_t)0U;
back = 0;
dk4error_set_simple_error_code(erp, DK4_E_BUFFER_TOO_SMALL);
}
if (0 == dk4utf8_is_empty(&dec)) {
back = 0;
dk4error_set_elsize_nelem(erp, DK4_E_SYNTAX, 1, rdb);
}
} else {
dk4error_set_simple_error_code(erp, DK4_E_INVALID_ARGUMENTS);
}
return back;
}
|
