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
|
/* This Source Code Form is subject to the terms of the Mozilla Public
* License, v. 2.0. If a copy of the MPL was not distributed with this
* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
#include "nsOS2Uni.h"
#include "nsIServiceManager.h"
#include "nsIPlatformCharset.h"
#include <stdlib.h>
/**********************************************************
OS2Uni
**********************************************************/
nsICharsetConverterManager* OS2Uni::gCharsetManager = nullptr;
struct ConverterInfo
{
uint16_t mCodePage;
const char* mConvName;
nsIUnicodeEncoder* mEncoder;
nsIUnicodeDecoder* mDecoder;
};
#define eCONVERTER_COUNT 17
ConverterInfo gConverterInfo[eCONVERTER_COUNT] =
{
{ 0, "", nullptr, nullptr },
{ 1252, "windows-1252", nullptr, nullptr },
{ 1208, "UTF-8", nullptr, nullptr },
{ 1250, "windows-1250", nullptr, nullptr },
{ 1251, "windows-1251", nullptr, nullptr },
{ 813, "ISO-8859-7", nullptr, nullptr },
{ 1254, "windows-1254", nullptr, nullptr },
{ 864, "IBM864", nullptr, nullptr },
{ 1257, "windows-1257", nullptr, nullptr },
{ 874, "windows-874", nullptr, nullptr },
{ 932, "Shift_JIS", nullptr, nullptr },
{ 943, "Shift_JIS", nullptr, nullptr },
{ 1381, "GB2312", nullptr, nullptr },
{ 1386, "GB2312", nullptr, nullptr },
{ 949, "EUC-KR", nullptr, nullptr },
{ 950, "Big5", nullptr, nullptr },
{ 1361, "x-johab", nullptr, nullptr }
};
nsISupports*
OS2Uni::GetUconvObject(int aCodePage, ConverterRequest aReq)
{
if (gCharsetManager == nullptr) {
CallGetService(NS_CHARSETCONVERTERMANAGER_CONTRACTID, &gCharsetManager);
}
nsresult rv;
nsISupports* uco = nullptr;
for (int i = 0; i < eCONVERTER_COUNT; i++) {
if (aCodePage == gConverterInfo[i].mCodePage) {
if (gConverterInfo[i].mEncoder == nullptr) {
const char* convname;
nsAutoCString charset;
if (aCodePage == 0) {
nsCOMPtr<nsIPlatformCharset>
plat(do_GetService(NS_PLATFORMCHARSET_CONTRACTID, &rv));
if (NS_SUCCEEDED(rv)) {
plat->GetCharset(kPlatformCharsetSel_FileName, charset);
} else {
// default to IBM850 if this should fail
charset = "IBM850";
}
convname = charset.get();
} else {
convname = gConverterInfo[i].mConvName;
}
rv = gCharsetManager->GetUnicodeEncoderRaw(convname,
&gConverterInfo[i].mEncoder);
gConverterInfo[i].mEncoder->
SetOutputErrorBehavior(nsIUnicodeEncoder::kOnError_Replace,
nullptr, '?');
gCharsetManager->GetUnicodeDecoderRaw(convname,
&gConverterInfo[i].mDecoder);
NS_ASSERTION(NS_SUCCEEDED(rv), "Failed to get converter");
}
if (aReq == eConv_Encoder) {
uco = gConverterInfo[i].mEncoder;
} else {
uco = gConverterInfo[i].mDecoder;
}
break;
}
}
return uco;
}
void OS2Uni::FreeUconvObjects()
{
for (int i = 0; i < eCONVERTER_COUNT; i++) {
NS_IF_RELEASE(gConverterInfo[i].mEncoder);
NS_IF_RELEASE(gConverterInfo[i].mDecoder);
}
NS_IF_RELEASE(gCharsetManager);
}
/**********************************************************
WideCharToMultiByte
**********************************************************/
nsresult
WideCharToMultiByte(int aCodePage, const PRUnichar* aSrc,
int32_t aSrcLength, nsAutoCharBuffer& aResult,
int32_t& aResultLength)
{
nsresult rv;
nsISupports* sup = OS2Uni::GetUconvObject(aCodePage, eConv_Encoder);
nsCOMPtr<nsIUnicodeEncoder> uco = do_QueryInterface(sup);
if (NS_FAILED(uco->GetMaxLength(aSrc, aSrcLength, &aResultLength))) {
return NS_ERROR_UNEXPECTED;
}
if (!aResult.SetLength(aResultLength + 1))
return NS_ERROR_OUT_OF_MEMORY;
char* str = aResult.Elements();
rv = uco->Convert(aSrc, &aSrcLength, str, &aResultLength);
aResult[aResultLength] = '\0';
return rv;
}
/**********************************************************
MultiByteToWideChar
**********************************************************/
nsresult
MultiByteToWideChar(int aCodePage, const char* aSrc,
int32_t aSrcLength, nsAutoChar16Buffer& aResult,
int32_t& aResultLength)
{
nsresult rv;
nsISupports* sup = OS2Uni::GetUconvObject(aCodePage, eConv_Decoder);
nsCOMPtr<nsIUnicodeDecoder> uco = do_QueryInterface(sup);
if (NS_FAILED(uco->GetMaxLength(aSrc, aSrcLength, &aResultLength))) {
return NS_ERROR_UNEXPECTED;
}
if (!aResult.SetLength(aResultLength + 1))
return NS_ERROR_OUT_OF_MEMORY;
PRUnichar* str = aResult.Elements();
rv = uco->Convert(aSrc, &aSrcLength, str, &aResultLength);
aResult[aResultLength] = '\0';
return rv;
}
|
