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1 | // Copyright Vladimir Prus 2004. |
2 | // Distributed under the Boost Software License, Version 1.0. | |
3 | // (See accompanying file LICENSE_1_0.txt | |
4 | // or copy at http://www.boost.org/LICENSE_1_0.txt) | |
5 | ||
6 | #ifndef BOOST_CONVERT_HPP_VP_2004_04_28 | |
7 | #define BOOST_CONVERT_HPP_VP_2004_04_28 | |
8 | ||
9 | #include <boost/program_options/config.hpp> | |
10 | ||
11 | #if !defined(BOOST_NO_STD_WSTRING) | |
12 | ||
13 | #include <boost/detail/workaround.hpp> | |
14 | ||
15 | #include <string> | |
16 | #include <vector> | |
17 | #include <locale> | |
18 | // for mbstate_t | |
19 | #include <cwchar> | |
20 | #include <stdexcept> | |
21 | ||
22 | #if defined(BOOST_NO_STDC_NAMESPACE) | |
23 | #include <wchar.h> | |
24 | namespace std | |
25 | { | |
26 | using ::mbstate_t; | |
27 | } | |
28 | #endif | |
29 | ||
30 | namespace boost { | |
31 | ||
32 | /** Converts from local 8 bit encoding into wchar_t string using | |
33 | the specified locale facet. */ | |
34 | BOOST_PROGRAM_OPTIONS_DECL std::wstring | |
35 | from_8_bit(const std::string& s, | |
36 | const std::codecvt<wchar_t, char, std::mbstate_t>& cvt); | |
37 | ||
38 | /** Converts from wchar_t string into local 8 bit encoding into using | |
39 | the specified locale facet. */ | |
40 | BOOST_PROGRAM_OPTIONS_DECL std::string | |
41 | to_8_bit(const std::wstring& s, | |
42 | const std::codecvt<wchar_t, char, std::mbstate_t>& cvt); | |
43 | ||
44 | ||
45 | /** Converts 's', which is assumed to be in UTF8 encoding, into wide | |
46 | string. */ | |
47 | BOOST_PROGRAM_OPTIONS_DECL std::wstring | |
48 | from_utf8(const std::string& s); | |
49 | ||
50 | /** Converts wide string 's' into string in UTF8 encoding. */ | |
51 | BOOST_PROGRAM_OPTIONS_DECL std::string | |
52 | to_utf8(const std::wstring& s); | |
53 | ||
54 | /** Converts wide string 's' into local 8 bit encoding determined by | |
55 | the current locale. */ | |
56 | BOOST_PROGRAM_OPTIONS_DECL std::string | |
57 | to_local_8_bit(const std::wstring& s); | |
58 | ||
59 | /** Converts 's', which is assumed to be in local 8 bit encoding, into wide | |
60 | string. */ | |
61 | BOOST_PROGRAM_OPTIONS_DECL std::wstring | |
62 | from_local_8_bit(const std::string& s); | |
63 | ||
64 | namespace program_options | |
65 | { | |
66 | /** Convert the input string into internal encoding used by | |
67 | program_options. Presence of this function allows to avoid | |
68 | specializing all methods which access input on wchar_t. | |
69 | */ | |
70 | BOOST_PROGRAM_OPTIONS_DECL std::string to_internal(const std::string&); | |
71 | /** @overload */ | |
72 | BOOST_PROGRAM_OPTIONS_DECL std::string to_internal(const std::wstring&); | |
73 | ||
74 | template<class T> | |
75 | std::vector<std::string> to_internal(const std::vector<T>& s) | |
76 | { | |
77 | std::vector<std::string> result; | |
78 | for (unsigned i = 0; i < s.size(); ++i) | |
79 | result.push_back(to_internal(s[i])); | |
80 | return result; | |
81 | } | |
82 | ||
83 | } | |
84 | ||
85 | ||
86 | ||
87 | } | |
88 | ||
89 | #else | |
90 | #include <vector> | |
91 | #include <string> | |
92 | namespace boost{ | |
93 | namespace program_options{ | |
94 | BOOST_PROGRAM_OPTIONS_DECL std::string to_internal(const std::string&); | |
95 | ||
96 | template<class T> | |
97 | std::vector<std::string> to_internal(const std::vector<T>& s) | |
98 | { | |
99 | std::vector<std::string> result; | |
100 | for (unsigned i = 0; i < s.size(); ++i) | |
101 | result.push_back(to_internal(s[i])); | |
102 | return result; | |
103 | } | |
104 | } | |
105 | } | |
106 | #endif | |
107 | #endif |