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@@ -20,22 +20,27 @@ unsigned char ToHex(unsigned char x)
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unsigned char FromHex(unsigned char x)
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{
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unsigned char y;
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+
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if(x >= 'A' && x <= 'Z')
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{
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y = x - 'A' + 10;
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}
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+
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else if(x >= 'a' && x <= 'z')
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{
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y = x - 'a' + 10;
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}
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+
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else if(x >= '0' && x <= '9')
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{
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y = x - '0';
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}
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+
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else
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{
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assert(0);
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}
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+
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return y;
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}
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@@ -52,19 +57,24 @@ bool CLewaimaiString::base64_encode(const string& input, string* output)
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{
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typedef base64_from_binary<transform_width<string::const_iterator, 6, 8>> Base64EncodeIterator;
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stringstream result;
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+
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try
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{
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copy(Base64EncodeIterator(input.begin()), Base64EncodeIterator(input.end()), ostream_iterator<char>(result));
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}
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+
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catch(...)
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{
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return false;
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}
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+
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size_t equal_count = (3 - input.length() % 3) % 3;
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+
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for(size_t i = 0; i < equal_count; i++)
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{
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result.put('=');
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}
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+
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*output = result.str();
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return output->empty() == false;
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}
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@@ -73,14 +83,17 @@ bool CLewaimaiString::base64_decode(const string& input, string* output)
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{
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typedef transform_width<binary_from_base64<string::const_iterator>, 8, 6> Base64DecodeIterator;
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stringstream result;
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+
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try
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{
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copy(Base64DecodeIterator(input.begin()), Base64DecodeIterator(input.end()), ostream_iterator<char>(result));
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}
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+
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catch(...)
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{
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return false;
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}
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+
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*output = result.str();
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return output->empty() == false;
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}
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@@ -98,6 +111,7 @@ std::string CLewaimaiString::UrlEncode(const std::string& str)
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{
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std::string strTemp = "";
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size_t length = str.length();
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+
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for(size_t i = 0; i < length; i++)
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{
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if(isalnum((unsigned char)str[i]) ||
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@@ -108,10 +122,12 @@ std::string CLewaimaiString::UrlEncode(const std::string& str)
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{
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strTemp += str[i];
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}
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+
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else if(str[i] == ' ')
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{
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strTemp += "+";
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}
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+
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else
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{
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strTemp += '%';
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@@ -119,6 +135,7 @@ std::string CLewaimaiString::UrlEncode(const std::string& str)
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strTemp += ToHex((unsigned char)str[i] % 16);
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}
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}
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+
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return strTemp;
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}
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@@ -126,12 +143,14 @@ std::string CLewaimaiString::UrlDecode(const std::string& str)
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{
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std::string strTemp = "";
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size_t length = str.length();
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+
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for(size_t i = 0; i < length; i++)
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{
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if(str[i] == '+')
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{
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strTemp += ' ';
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}
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+
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else if(str[i] == '%')
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{
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assert(i + 2 < length);
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@@ -139,78 +158,72 @@ std::string CLewaimaiString::UrlDecode(const std::string& str)
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unsigned char low = FromHex((unsigned char)str[++i]);
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strTemp += high * 16 + low;
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}
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+
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else
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{
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strTemp += str[i];
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}
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}
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+
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return strTemp;
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}
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std::string CLewaimaiString::UnicodeToUTF8(const std::wstring& wstr)
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{
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std::string ret;
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+
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try
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{
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std::wstring_convert< std::codecvt_utf8<wchar_t> > wcv;
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ret = wcv.to_bytes(wstr);
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}
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+
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catch(const std::exception& e)
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{
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std::cerr << e.what() << std::endl;
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}
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+
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return ret;
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}
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std::wstring CLewaimaiString::UTF8ToUnicode(const std::string& str)
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{
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std::wstring ret;
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+
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try
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{
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std::wstring_convert< std::codecvt_utf8<wchar_t> > wcv;
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ret = wcv.from_bytes(str);
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}
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+
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catch(const std::exception& e)
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{
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std::cerr << e.what() << std::endl;
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}
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+
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return ret;
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}
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std::string CLewaimaiString::UnicodeToANSI(const std::wstring& wstr)
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{
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- std::string ret;
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- std::mbstate_t state = {};
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- const wchar_t* src = wstr.data();
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- size_t len = std::wcsrtombs(nullptr, &src, 0, &state);
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- if(static_cast<size_t>(-1) != len)
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- {
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- std::unique_ptr< char[] > buff(new char[len + 1]);
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- len = std::wcsrtombs(buff.get(), &src, len, &state);
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- if(static_cast<size_t>(-1) != len)
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- {
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- ret.assign(buff.get(), len);
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- }
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- }
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- return ret;
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+ unsigned len = wstr.size() * 4;
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+ setlocale(LC_CTYPE, "");
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+ char *p = new char[len];
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+ wcstombs(p, wstr.c_str(), len);
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+ std::string str1(p);
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+ delete[] p;
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+ return str1;
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}
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std::wstring CLewaimaiString::ANSIToUnicode(const std::string& str)
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{
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- std::wstring ret;
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- std::mbstate_t state = {};
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- const char* src = str.data();
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- size_t len = std::mbsrtowcs(nullptr, &src, 0, &state);
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- if(static_cast<size_t>(-1) != len)
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- {
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- std::unique_ptr< wchar_t[] > buff(new wchar_t[len + 1]);
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- len = std::mbsrtowcs(buff.get(), &src, len, &state);
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- if(static_cast<size_t>(-1) != len)
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- {
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- ret.assign(buff.get(), len);
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- }
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- }
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- return ret;
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+ unsigned len = str.size() * 2;// 预留字节数
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+ setlocale(LC_CTYPE, ""); //必须调用此函数
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+ wchar_t *p = new wchar_t[len];// 申请一段内存存放转换后的字符串
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+ mbstowcs(p, str.c_str(), len);// 转换
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+ std::wstring str1(p);
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+ delete[] p;// 释放申请的内存
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+ return str1;
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}
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std::string CLewaimaiString::UTF8ToANSI(const std::string& str)
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@@ -239,18 +252,22 @@ bool CLewaimaiString::isIPAddressValid(const char* pszIPAddr)
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{
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return false; //若pszIPAddr为空
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}
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+
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char IP1[100], cIP[4];
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int len = strlen(pszIPAddr);
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int i = 0, j = len - 1;
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int k, m = 0, n = 0, num = 0;
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+
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//去除首尾空格(取出从i-1到j+1之间的字符):
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while(pszIPAddr[i++] == ' ');
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+
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while(pszIPAddr[j--] == ' ');
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for(k = i - 1; k <= j + 1; k++)
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{
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IP1[m++] = *(pszIPAddr + k);
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}
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+
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IP1[m] = '\0';
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char* p = IP1;
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@@ -261,29 +278,35 @@ bool CLewaimaiString::isIPAddressValid(const char* pszIPAddr)
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{
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return false;
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}
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+
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cIP[n++] = *p; //保存每个子段的第一个字符,用于之后判断该子段是否为0开头
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int sum = 0; //sum为每一子段的数值,应在0到255之间
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+
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while(*p != '.' && *p != '\0')
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{
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if(*p == ' ' || *p < '0' || *p > '9')
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{
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return false;
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}
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+
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sum = sum * 10 + *p - 48; //每一子段字符串转化为整数
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p++;
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}
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+
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if(*p == '.')
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{
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if((*(p - 1) >= '0' && *(p - 1) <= '9') && (*(p + 1) >= '0' && *(p + 1) <= '9')) //判断"."前后是否有数字,若无,则为无效IP,如“1.1.127.”
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{
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num++; //记录“.”出现的次数,不能大于3
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}
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+
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else
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{
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return false;
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}
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};
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+
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if((sum > 255) || (sum > 0 && cIP[0] == '0') || num > 3)
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{
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return false; //若子段的值>255或为0开头的非0子段或“.”的数目>3,则为无效IP
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@@ -293,35 +316,38 @@ bool CLewaimaiString::isIPAddressValid(const char* pszIPAddr)
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{
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p++;
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}
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+
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n = 0;
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}
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+
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if(num != 3)
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{
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return false;
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}
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+
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return true;
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}
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vector<string> CLewaimaiString::Split(const string& in, const string& delim)
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{
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- vector<string> ret;
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-
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- try
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- {
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- regex re{ delim };
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- return vector<string>
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- {
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- sregex_token_iterator(in.begin(), in.end(), re, -1),
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- sregex_token_iterator()
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- };
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- }
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-
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- catch (const std::exception& e)
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- {
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- cout << "error:" << e.what() << std::endl;
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- }
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-
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- return ret;
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+ vector<string> ret;
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+
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+ try
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+ {
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+ regex re{ delim };
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+ return vector<string>
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+ {
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+ sregex_token_iterator(in.begin(), in.end(), re, -1),
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+ sregex_token_iterator()
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+ };
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+ }
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+
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+ catch(const std::exception& e)
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+ {
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+ cout << "error:" << e.what() << std::endl;
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+ }
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+
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+ return ret;
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}
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/*
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@@ -329,28 +355,31 @@ vector<string> CLewaimaiString::Split(const string& in, const string& delim)
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**/
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int CLewaimaiString::Replace(std::wstring& strContent, std::wstring strReplace, std::wstring strDest, int nNum)
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{
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- int nCount = 0;
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- while (true)
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- {
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- size_t pos = strContent.find(strReplace);
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- if (pos != std::wstring::npos)
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- {
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- WCHAR pBuf[1] = { L'\0' };
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- strContent.replace(pos, strReplace.length(), pBuf, 0);
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- strContent.insert(pos, strDest);
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-
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- nCount++;
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-
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- if (nCount == nNum)
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- {
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- break;
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- }
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- }
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- else
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- {
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- break;
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- }
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- }
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-
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- return 0;
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+ int nCount = 0;
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+
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+ while(true)
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+ {
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+ size_t pos = strContent.find(strReplace);
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+
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+ if(pos != std::wstring::npos)
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+ {
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+ WCHAR pBuf[1] = { L'\0' };
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+ strContent.replace(pos, strReplace.length(), pBuf, 0);
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+ strContent.insert(pos, strDest);
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+
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+ nCount++;
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+
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+ if(nCount == nNum)
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+ {
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+ break;
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+ }
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+ }
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+
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+ else
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+ {
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+ break;
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+ }
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+ }
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+
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+ return 0;
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}
|