Boost.Locale是一个库，它提供高质量的本地化的设施在C + +的方式。它最初是设计的一部分CppCMS - C + +的Web框架的项目，然后促成了提升。
Boost.Locale提供强大的工具，跨平台的本地化软件开发 - 这会谈到用户在其语言的软件。
提供的功能：
- 正确的大小写转换，大小写和规范化。
- 整理（排序），其中包括4 Unicode排序规则层面的支持。
- 日期，时间，时区和日历操作，格式化和分析，包括对日历比公历其他透明的支持。
- 边界分析字，词，句和换行符。
- 数字格式，拼写和语法分析。
- 货币格式和解析。
- 强大的邮件格式（字符串翻译），包括多种格式，使用GNU目录的支持。
- 字符集转换。
- 8位字符透明支持集，如拉丁文
- 支持
的char和wchar_t的 - 对C + +0 x的实验性支持
char16_t和char32_t字符串和数据流。
Boost.Locale提高和统一了标准库的API，它变得非常有用和方便开发跨平台的和“跨文化”软件的方式。
相关字符集转换函数功能摘要：
| std::string boost::locale::conv::between | ( | char const * | begin, |
| | | char const * | end, |
| | | std::string const & | to_encoding, |
| | | std::string const & | from_encoding, |
| | | method_type | how = default_method |
| | ) | | |
Convert a text in range [begin,end) to to_encoding from from_encoding
| std::string boost::locale::conv::between | ( | char const * | text, |
| | | std::string const & | to_encoding, |
| | | std::string const & | from_encoding, |
| | | method_type | how = default_method |
| | ) | | [inline] |
Convert a text to to_encoding from from_encoding
| std::string boost::locale::conv::between | ( | std::string const & | text, |
| | | std::string const & | to_encoding, |
| | | std::string const & | from_encoding, |
| | | method_type | how = default_method |
| | ) | | [inline] |
Convert a text to to_encoding from from_encoding
template<typename CharType >
| std::string boost::locale::conv::from_utf | ( | CharType const * | begin, |
| | | CharType const * | end, |
| | | std::string const & | charset, |
| | | method_type | how = default_method |
| | ) | | |
convert UTF text in range [begin,end) to a text encoded with charset according to policy how
template<typename CharType >
| std::string boost::locale::conv::from_utf | ( | CharType const * | begin, |
| | | CharType const * | end, |
| | | std::locale const & | loc, |
| | | method_type | how = default_method |
| | ) | | |
convert UTF text in range [begin,end) to a text encoded according to locale loc according to policy how
- Note:
- throws std::bad_cast if the loc does not have info facet installed
template<typename CharType >
| std::string boost::locale::conv::from_utf | ( | std::basic_string< CharType > const & | text, |
| | | std::string const & | charset, |
| | | method_type | how = default_method |
| | ) | | |
Convert a text from charset to UTF string
template<typename CharType >
Convert a text from UTF to charset
template<typename CharType >
| std::string boost::locale::conv::from_utf | ( | std::basic_string< CharType > const & | text, |
| | | std::locale const & | loc, |
| | | method_type | how = default_method |
| | ) | | |
Convert a text in UTF to locale encoding given by loc
- Note:
- throws std::bad_cast if the loc does not have info facet installed
template<typename CharType >
Convert a text in UTF to locale encoding given by loc
- Note:
- throws std::bad_cast if the loc does not have info facet installed
template<typename CharType >
| std::basic_string<CharType> boost::locale::conv::to_utf | ( | char const * | begin, |
| | | char const * | end, |
| | | std::string const & | charset, |
| | | method_type | how = default_method |
| | ) | | |
convert string to UTF string from text in range [begin,end) encoded with charset according to policy how
template<typename CharType >
| std::basic_string<CharType> boost::locale::conv::to_utf | ( | char const * | begin, |
| | | char const * | end, |
| | | std::locale const & | loc, |
| | | method_type | how = default_method |
| | ) | | |
convert string to UTF string from text in range [begin,end) encoded according to locale loc according to policy how
- Note:
- throws std::bad_cast if the loc does not have info facet installed
template<typename CharType >
| std::basic_string<CharType> boost::locale::conv::to_utf | ( | std::string const & | text, |
| | | std::string const & | charset, |
| | | method_type | how = default_method |
| | ) | | |
convert a string text encoded with charset to UTF string
template<typename CharType >
| std::basic_string<CharType> boost::locale::conv::to_utf | ( | char const * | text, |
| | | std::string const & | charset, |
| | | method_type | how = default_method |
| | ) | | |
Convert a text from charset to UTF string
template<typename CharType >
| std::basic_string<CharType> boost::locale::conv::to_utf | ( | std::string const & | text, |
| | | std::locale const & | loc, |
| | | method_type | how = default_method |
| | ) | | |
Convert a text in locale encoding given by loc to UTF
- Note:
- throws std::bad_cast if the loc does not have info facet installed
template<typename CharType >
Convert a text in locale encoding given by loc to UTF
- Note:
- throws std::bad_cast if the loc does not have info facet installed
template<typename CharOut , typename CharIn >
Convert a Unicode text in range [begin,end) to other Unicode encoding
template<typename CharOut , typename CharIn >
Convert a Unicode NUL terminated string str other Unicode encoding
template<typename CharOut , typename CharIn >
Convert a Unicode string str other Unicode encoding
简单示例：
1、between把 source 这个字串从BIG5 转换到 UTF-8：
string source = "BIG5字符串";
string s = boost::locale::conv::between( source, "UTF-8", "BIG5" );
2、to_utf可以输出 string ，也可以输出成 wstring。像下面的例子，就是把 sSource 这个 BIG-5 编码的字串，依序转换成 wstring和 string 的字串。
string sSource = "BIG-5字符串";
wstring ws = boost::locale::conv::to_utf<wchar_t>( sSource, "BIG5" );
string ss = boost::locale::conv::to_utf<char>( sSource, "BIG5" );
3、from_utf 是把 UTF 字串（string 或wstring）、转换为特定编码的字串用的，他可以转换string 或wstring 的字串，但是输出一定是string。
下面的例子，就是把 sSource 和 wSource 这两个 UTF 字串，都转换成 BIG-5 的 string 字串。
string sSource = "字符串";
wstring wSource = L"...";
string ss1 = boost::locale::conv::from_utf( wSource, "BIG5" );
string ss2 = boost::locale::conv::from_utf( sSource, "BIG5" );
4、utf_to_utf的目的，是在 UTF 的 string 字串和 wstring 字串之间做转换，下面的例子，就是把类型是 string 的 sSource 转换成 wstring、并把类型是 wstring 的 wSource 转换成 string
string sSource = "...";
wstring wSource = L"...";
string wStr = boost::locale::conv::utf_to_utf<wchar_t>( sSource );
string sStr = boost::locale::conv::utf_to_utf<char>( wSource );
