欧美日一区二区在线观看 ,欧美日韩在线视频观看,欧美在线视屏

C++ Utf8字符轉(zhuǎn)換Gb312編碼

http://cjmxp007.blog.163.com/blog/static/35473837201061541933667/

1 #ifndef TRANSFORM
  2 #define TRANSFORM
  3 #include <map>
  4 using namespace std;
  5 // 是否啟用map轉(zhuǎn)換，建議啟用
  6 // 使用map轉(zhuǎn)換的話，同一個(gè)常量字符串不會(huì)做兩次轉(zhuǎn)換
  7 #define TEST_TYPE_MAP
  8
  9 typedef map<const char*, const char*> strmap;
10
11 class CUtf8String
12 {
13     public:
14         inline CUtf8String(const char* gb2312)
15         {
16             m_bIsConst = true;
17 #ifdef TEST_TYPE_MAP
18             if (m[gb2312])
19             {
20                 m_utf8 = m[gb2312];
21                 return ;
22             }
23 #endif
24             int buffLen = 0;
25             WCHAR wbuff[5120];
26             MultiByteToWideChar(CP_ACP, 0, gb2312, -1, wbuff, 5120);
27             buffLen = WideCharToMultiByte(CP_UTF8, 0, wbuff, -1, NULL, 0, 0, 0);
28             m_utf8 = new char[buffLen+1];
29             WideCharToMultiByte(CP_UTF8, 0, wbuff, -1, (LPSTR)m_utf8, buffLen, 0, 0);
30 #ifdef TEST_TYPE_MAP
31             m[gb2312] = m_utf8;
32 #endif
33         }
34
35         inline CUtf8String(char* gb2312)
36         {
37             m_bIsConst = false;
38             int buffLen = 0;
39             WCHAR wbuff[5120];
40             MultiByteToWideChar(CP_ACP, 0, gb2312, -1, wbuff, 5120);
41             buffLen = WideCharToMultiByte(CP_UTF8, 0, wbuff, -1, NULL, 0, 0, 0);
42             m_utf8 = new char[buffLen+1];
43             WideCharToMultiByte(CP_UTF8, 0, wbuff, -1, (LPSTR)m_utf8, buffLen, 0, 0);
44         }
45
46         inline ~CUtf8String()
47             {
48 #ifndef TEST_TYPE_MAP
49             if (m_utf8)
50             {
51                 delete m_utf8;
52                 m_utf8 = 0;
53             }
54 #else
55             if (!m_bIsConst)
56                 {
57                 if (m_utf8)
58                     {
59                     delete m_utf8;
60                     m_utf8 = 0;
61                     }
62                 }
63 #endif
64             }
65
66         inline operator char*()
67             {
68             return (char*)m_utf8;
69             }
70     private:
71         const char* m_utf8;
72         bool m_bIsConst;
73 #ifdef TEST_TYPE_MAP
74         static strmap m;
75 #endif
76 };
77
78 class CGb2312String
79     {
80     public:
81         inline CGb2312String(const char* utf8)
82             {
83 #ifdef TEST_TYPE_MAP
84             if (m[utf8])
85             {
86                 m_gb2312 = 0;
87                 m_gb2312 = m[utf8];
88             }
89 #endif
90             int buffLen = 0;
91             WCHAR wbuff[5120];
92             MultiByteToWideChar(CP_UTF8, 0, utf8, -1, wbuff, 5120);
93             buffLen = WideCharToMultiByte(CP_ACP, 0, wbuff, -1, NULL, 0, 0, 0);
94             m_gb2312 = new char[buffLen+1];
95             WideCharToMultiByte(CP_ACP, 0, wbuff, -1, (LPSTR)m_gb2312, buffLen, 0, 0);
96 #ifdef TEST_TYPE_MAP
97             m[utf8] = m_gb2312;
98 #endif
99         }
100
101         inline CGb2312String(char* utf8)
102         {
103 #ifdef TEST_TYPE_MAP
104             if (m[utf8])
105             {
106                 m_gb2312 = 0;
107                 m_gb2312 = m[utf8];
108             }
109 #endif
110             int buffLen = 0;
111             WCHAR wbuff[5120];
112             MultiByteToWideChar(CP_UTF8, 0, utf8, -1, wbuff, 5120);
113             buffLen = WideCharToMultiByte(CP_ACP, 0, wbuff, -1, NULL, 0, 0, 0);
114             m_gb2312 = new char[buffLen+1];
115             WideCharToMultiByte(CP_ACP, 0, wbuff, -1, (LPSTR)m_gb2312, buffLen, 0, 0);
116 #ifdef TEST_TYPE_MAP
117             m[utf8] = m_gb2312;
118 #endif
119         }
120
121         inline ~CGb2312String()
122         {
123 #ifndef TEST_TYPE_MAP
124             if (m_gb2312)
125                 {
126                 delete m_gb2312;
127                 m_gb2312 = 0;
128                 }
129 #endif
130         }
131
132         inline operator char*()
133         {
134             return (char*)m_gb2312;
135         }
136     private:
137         const char* m_gb2312;
138 #ifdef TEST_TYPE_MAP
139         static strmap m;
140 #endif
141 };
142
143 #ifdef TEST_TYPE_MAP
144 strmap CUtf8String::m;
145 strmap CGb2312String::m;
146 #endif
147 #endif
148
149
150 //===================無(wú)聊的分割線==========================
151
152 #define U   (CUtf8String)
153
154 #define W   (CGb2312String)
155
156 // 使用方法
157 int main(int argc, char* argv[])
158 {
159     // 打印出亂碼即為UTF8的編碼，方便吧。C++還是確實(shí)很強(qiáng)悍的
160     printf("%s", U"你好中國(guó)!");
161 }

posted on 2012-07-18 17:24 多彩人生閱讀(1144) 評(píng)論(0) 編輯收藏引用

只有注冊(cè)用戶登錄后才能發(fā)表評(píng)論。
【推薦】100%開(kāi)源！大型工業(yè)跨平臺(tái)軟件C++源碼提供，建模，組態(tài)！



網(wǎng)站導(dǎo)航: 博客園 IT新聞 BlogJava 博問(wèn) Chat2DB 管理

青青草原综合久久大伊人导航_色综合久久天天综合_日日噜噜夜夜狠狠久久丁香五月_热久久这里只有精品

colorful

C++ Utf8字符轉(zhuǎn)換Gb312編碼

導(dǎo)航

統(tǒng)計(jì)

常用鏈接

留言簿(3)

隨筆分類

隨筆檔案

搜索

最新評(píng)論

閱讀排行榜

評(píng)論排行榜