1396 lines
		
	
	
		
			48 KiB
		
	
	
	
		
			C++
		
	
	
		
			Executable File
		
	
	
	
	
			
		
		
	
	
			1396 lines
		
	
	
		
			48 KiB
		
	
	
	
		
			C++
		
	
	
		
			Executable File
		
	
	
	
	
| //  filesystem path.hpp  ---------------------------------------------------------------//
 | |
| 
 | |
| //  Copyright Vladimir Prus 2002
 | |
| //  Copyright Beman Dawes 2002-2005, 2009
 | |
| //  Copyright Andrey Semashev 2021
 | |
| 
 | |
| //  Distributed under the Boost Software License, Version 1.0.
 | |
| //  See http://www.boost.org/LICENSE_1_0.txt
 | |
| 
 | |
| //  Library home page: http://www.boost.org/libs/filesystem
 | |
| 
 | |
| //  path::stem(), extension(), and replace_extension() are based on
 | |
| //  basename(), extension(), and change_extension() from the original
 | |
| //  filesystem/convenience.hpp header by Vladimir Prus.
 | |
| 
 | |
| #ifndef BOOST_FILESYSTEM_PATH_HPP
 | |
| #define BOOST_FILESYSTEM_PATH_HPP
 | |
| 
 | |
| #include <boost/assert.hpp>
 | |
| #include <boost/filesystem/config.hpp>
 | |
| #include <boost/filesystem/path_traits.hpp> // includes <cwchar>
 | |
| #include <boost/iterator/iterator_facade.hpp>
 | |
| #include <boost/iterator/iterator_categories.hpp>
 | |
| #include <boost/core/enable_if.hpp>
 | |
| #include <boost/io/quoted.hpp>
 | |
| #include <boost/functional/hash_fwd.hpp>
 | |
| #include <boost/type_traits/integral_constant.hpp>
 | |
| #include <boost/type_traits/is_same.hpp>
 | |
| #include <boost/type_traits/is_integral.hpp>
 | |
| #include <boost/type_traits/remove_reference.hpp>
 | |
| #include <boost/type_traits/remove_cv.hpp>
 | |
| #include <boost/type_traits/decay.hpp>
 | |
| #include <cstddef>
 | |
| #include <cwchar> // for mbstate_t
 | |
| #include <string>
 | |
| #include <iosfwd>
 | |
| #include <iterator>
 | |
| #include <locale>
 | |
| #include <utility>
 | |
| 
 | |
| #include <boost/filesystem/detail/header.hpp> // must be the last #include
 | |
| 
 | |
| namespace boost {
 | |
| namespace filesystem {
 | |
| 
 | |
| class path;
 | |
| 
 | |
| namespace path_detail { // intentionally don't use filesystem::detail to not bring internal Boost.Filesystem functions into ADL via path_constants
 | |
| 
 | |
| template< typename Char, Char Separator, Char PreferredSeparator, Char Dot >
 | |
| struct path_constants
 | |
| {
 | |
|     typedef path_constants< Char, Separator, PreferredSeparator, Dot > path_constants_base;
 | |
|     typedef Char value_type;
 | |
|     static BOOST_CONSTEXPR_OR_CONST value_type separator = Separator;
 | |
|     static BOOST_CONSTEXPR_OR_CONST value_type preferred_separator = PreferredSeparator;
 | |
|     static BOOST_CONSTEXPR_OR_CONST value_type dot = Dot;
 | |
| };
 | |
| 
 | |
| #if defined(BOOST_NO_CXX17_INLINE_VARIABLES)
 | |
| template< typename Char, Char Separator, Char PreferredSeparator, Char Dot >
 | |
| BOOST_CONSTEXPR_OR_CONST typename path_constants< Char, Separator, PreferredSeparator, Dot >::value_type
 | |
| path_constants< Char, Separator, PreferredSeparator, Dot >::separator;
 | |
| template< typename Char, Char Separator, Char PreferredSeparator, Char Dot >
 | |
| BOOST_CONSTEXPR_OR_CONST typename path_constants< Char, Separator, PreferredSeparator, Dot >::value_type
 | |
| path_constants< Char, Separator, PreferredSeparator, Dot >::preferred_separator;
 | |
| template< typename Char, Char Separator, Char PreferredSeparator, Char Dot >
 | |
| BOOST_CONSTEXPR_OR_CONST typename path_constants< Char, Separator, PreferredSeparator, Dot >::value_type
 | |
| path_constants< Char, Separator, PreferredSeparator, Dot >::dot;
 | |
| #endif
 | |
| 
 | |
| // A struct that denotes a contiguous range of characters in a string. A lightweight alternative to string_view.
 | |
| struct substring
 | |
| {
 | |
|     std::size_t pos;
 | |
|     std::size_t size;
 | |
| };
 | |
| 
 | |
| template< typename T >
 | |
| struct is_native_char_ptr_impl : public boost::false_type {};
 | |
| 
 | |
| #if defined(BOOST_WINDOWS_API)
 | |
| template< >
 | |
| struct is_native_char_ptr_impl< wchar_t* > : public boost::true_type {};
 | |
| template< >
 | |
| struct is_native_char_ptr_impl< const wchar_t* > : public boost::true_type {};
 | |
| #else // defined(BOOST_WINDOWS_API)
 | |
| template< >
 | |
| struct is_native_char_ptr_impl< char* > : public boost::true_type {};
 | |
| template< >
 | |
| struct is_native_char_ptr_impl< const char* > : public boost::true_type {};
 | |
| #endif // defined(BOOST_WINDOWS_API)
 | |
| 
 | |
| template< typename T >
 | |
| struct is_native_char_ptr : public is_native_char_ptr_impl< typename boost::remove_cv< typename boost::remove_reference< T >::type >::type > {};
 | |
| 
 | |
| template< typename T >
 | |
| struct is_native_pathable_impl : public boost::false_type {};
 | |
| 
 | |
| template< typename T >
 | |
| struct is_native_pathable_impl< T* > : public is_native_char_ptr_impl< T* > {};
 | |
| 
 | |
| #if defined(BOOST_WINDOWS_API)
 | |
| template< >
 | |
| struct is_native_pathable_impl< const wchar_t[] > : public boost::true_type {};
 | |
| template< std::size_t N >
 | |
| struct is_native_pathable_impl< const wchar_t[N] > : public boost::true_type {};
 | |
| template< >
 | |
| struct is_native_pathable_impl< std::basic_string< wchar_t > > : public boost::true_type {};
 | |
| #else // defined(BOOST_WINDOWS_API)
 | |
| template< >
 | |
| struct is_native_pathable_impl< const char[] > : public boost::true_type {};
 | |
| template< std::size_t N >
 | |
| struct is_native_pathable_impl< const char[N] > : public boost::true_type {};
 | |
| template< >
 | |
| struct is_native_pathable_impl< std::basic_string< char > > : public boost::true_type {};
 | |
| #endif // defined(BOOST_WINDOWS_API)
 | |
| template< >
 | |
| struct is_native_pathable_impl< filesystem::path > : public boost::true_type {};
 | |
| 
 | |
| template< typename T >
 | |
| struct is_native_pathable : public is_native_pathable_impl< typename boost::remove_cv< typename boost::remove_reference< T >::type >::type > {};
 | |
| 
 | |
| } // namespace path_detail
 | |
| 
 | |
| //------------------------------------------------------------------------------------//
 | |
| //                                                                                    //
 | |
| //                                    class path                                      //
 | |
| //                                                                                    //
 | |
| //------------------------------------------------------------------------------------//
 | |
| 
 | |
| class path :
 | |
|     public filesystem::path_detail::path_constants<
 | |
| #ifdef BOOST_WINDOWS_API
 | |
|         wchar_t, L'/', L'\\', L'.'
 | |
| #else
 | |
|         char, '/', '/', '.'
 | |
| #endif
 | |
|     >
 | |
| {
 | |
| public:
 | |
|     //  value_type is the character type used by the operating system API to
 | |
|     //  represent paths.
 | |
| 
 | |
|     typedef path_constants_base::value_type value_type;
 | |
|     typedef std::basic_string< value_type > string_type;
 | |
|     typedef std::codecvt< wchar_t, char, std::mbstate_t > codecvt_type;
 | |
| 
 | |
|     //  ----- character encoding conversions -----
 | |
| 
 | |
|     //  Following the principle of least astonishment, path input arguments
 | |
|     //  passed to or obtained from the operating system via objects of
 | |
|     //  class path behave as if they were directly passed to or
 | |
|     //  obtained from the O/S API, unless conversion is explicitly requested.
 | |
|     //
 | |
|     //  POSIX specfies that path strings are passed unchanged to and from the
 | |
|     //  API. Note that this is different from the POSIX command line utilities,
 | |
|     //  which convert according to a locale.
 | |
|     //
 | |
|     //  Thus for POSIX, char strings do not undergo conversion.  wchar_t strings
 | |
|     //  are converted to/from char using the path locale or, if a conversion
 | |
|     //  argument is given, using a conversion object modeled on
 | |
|     //  std::wstring_convert.
 | |
|     //
 | |
|     //  The path locale, which is global to the thread, can be changed by the
 | |
|     //  imbue() function. It is initialized to an implementation defined locale.
 | |
|     //
 | |
|     //  For Windows, wchar_t strings do not undergo conversion. char strings
 | |
|     //  are converted using the "ANSI" or "OEM" code pages, as determined by
 | |
|     //  the AreFileApisANSI() function, or, if a conversion argument is given,
 | |
|     //  using a conversion object modeled on std::wstring_convert.
 | |
|     //
 | |
|     //  See m_pathname comments for further important rationale.
 | |
| 
 | |
|     //  TODO: rules needed for operating systems that use / or .
 | |
|     //  differently, or format directory paths differently from file paths.
 | |
|     //
 | |
|     //  **********************************************************************************
 | |
|     //
 | |
|     //  More work needed: How to handle an operating system that may have
 | |
|     //  slash characters or dot characters in valid filenames, either because
 | |
|     //  it doesn't follow the POSIX standard, or because it allows MBCS
 | |
|     //  filename encodings that may contain slash or dot characters. For
 | |
|     //  example, ISO/IEC 2022 (JIS) encoding which allows switching to
 | |
|     //  JIS x0208-1983 encoding. A valid filename in this set of encodings is
 | |
|     //  0x1B 0x24 0x42 [switch to X0208-1983] 0x24 0x2F [U+304F Kiragana letter KU]
 | |
|     //                                             ^^^^
 | |
|     //  Note that 0x2F is the ASCII slash character
 | |
|     //
 | |
|     //  **********************************************************************************
 | |
| 
 | |
|     //  Supported source arguments: half-open iterator range, container, c-array,
 | |
|     //  and single pointer to null terminated string.
 | |
| 
 | |
|     //  All source arguments except pointers to null terminated byte strings support
 | |
|     //  multi-byte character strings which may have embedded nulls. Embedded null
 | |
|     //  support is required for some Asian languages on Windows.
 | |
| 
 | |
|     //  "const codecvt_type& cvt=codecvt()" default arguments are not used because this
 | |
|     //  limits the impact of locale("") initialization failures on POSIX systems to programs
 | |
|     //  that actually depend on locale(""). It further ensures that exceptions thrown
 | |
|     //  as a result of such failues occur after main() has started, so can be caught.
 | |
| 
 | |
|     //  -----  constructors  -----
 | |
| 
 | |
|     path() BOOST_NOEXCEPT {}
 | |
|     path(path const& p) : m_pathname(p.m_pathname) {}
 | |
| 
 | |
|     template< class Source >
 | |
|     path(Source const& source, typename boost::enable_if_c<
 | |
|         path_traits::is_pathable< typename boost::decay< Source >::type >::value && !path_detail::is_native_pathable< Source >::value
 | |
|     >::type* = 0)
 | |
|     {
 | |
|         path_traits::dispatch(source, m_pathname);
 | |
|     }
 | |
| 
 | |
|     path(const value_type* s) : m_pathname(s) {}
 | |
|     path(string_type const& s) : m_pathname(s) {}
 | |
| 
 | |
|     //  As of October 2015 the interaction between noexcept and =default is so troublesome
 | |
|     //  for VC++, GCC, and probably other compilers, that =default is not used with noexcept
 | |
|     //  functions. GCC is not even consistent for the same release on different platforms.
 | |
| 
 | |
| #if !defined(BOOST_NO_CXX11_RVALUE_REFERENCES)
 | |
|     path(path&& p) BOOST_NOEXCEPT : m_pathname(std::move(p.m_pathname))
 | |
|     {
 | |
|     }
 | |
|     path(path&& p, codecvt_type const&) BOOST_NOEXCEPT : m_pathname(std::move(p.m_pathname))
 | |
|     {
 | |
|     }
 | |
|     path& operator=(path&& p) BOOST_NOEXCEPT
 | |
|     {
 | |
|         m_pathname = std::move(p.m_pathname);
 | |
|         return *this;
 | |
|     }
 | |
|     path& assign(path&& p) BOOST_NOEXCEPT
 | |
|     {
 | |
|         m_pathname = std::move(p.m_pathname);
 | |
|         return *this;
 | |
|     }
 | |
|     path& assign(path&& p, codecvt_type const&) BOOST_NOEXCEPT
 | |
|     {
 | |
|         m_pathname = std::move(p.m_pathname);
 | |
|         return *this;
 | |
|     }
 | |
| 
 | |
|     path(string_type&& s) BOOST_NOEXCEPT : m_pathname(std::move(s))
 | |
|     {
 | |
|     }
 | |
|     path(string_type&& s, codecvt_type const&) BOOST_NOEXCEPT : m_pathname(std::move(s))
 | |
|     {
 | |
|     }
 | |
|     path& operator=(string_type&& p) BOOST_NOEXCEPT
 | |
|     {
 | |
|         m_pathname = std::move(p);
 | |
|         return *this;
 | |
|     }
 | |
|     path& assign(string_type&& p) BOOST_NOEXCEPT
 | |
|     {
 | |
|         m_pathname = std::move(p);
 | |
|         return *this;
 | |
|     }
 | |
|     path& assign(string_type&& p, codecvt_type const&) BOOST_NOEXCEPT
 | |
|     {
 | |
|         m_pathname = std::move(p);
 | |
|         return *this;
 | |
|     }
 | |
| #endif
 | |
| 
 | |
|     path(path const& p, codecvt_type const&) : m_pathname(p.m_pathname) {}
 | |
|     path(const value_type* s, codecvt_type const&) : m_pathname(s) {}
 | |
|     path(string_type const& s, codecvt_type const&) : m_pathname(s) {}
 | |
| 
 | |
|     template< class Source >
 | |
|     path(Source const& source, codecvt_type const& cvt, typename boost::enable_if_c<
 | |
|         path_traits::is_pathable< typename boost::decay< Source >::type >::value && !path_detail::is_native_pathable< Source >::value
 | |
|     >::type* = 0)
 | |
|     {
 | |
|         path_traits::dispatch(source, m_pathname, cvt);
 | |
|     }
 | |
| 
 | |
|     path(const value_type* begin, const value_type* end) : m_pathname(begin, end) {}
 | |
| 
 | |
|     template< class InputIterator >
 | |
|     path(InputIterator begin, InputIterator end, typename boost::disable_if< path_detail::is_native_char_ptr< InputIterator > >::type* = 0)
 | |
|     {
 | |
|         if (begin != end)
 | |
|         {
 | |
|             // convert requires contiguous string, so copy
 | |
|             std::basic_string< typename std::iterator_traits< InputIterator >::value_type > seq(begin, end);
 | |
|             path_traits::convert(seq.c_str(), seq.c_str() + seq.size(), m_pathname);
 | |
|         }
 | |
|     }
 | |
| 
 | |
|     path(const value_type* begin, const value_type* end, codecvt_type const&) : m_pathname(begin, end) {}
 | |
| 
 | |
|     template< class InputIterator >
 | |
|     path(InputIterator begin, InputIterator end, codecvt_type const& cvt, typename boost::disable_if< path_detail::is_native_char_ptr< InputIterator > >::type* = 0)
 | |
|     {
 | |
|         if (begin != end)
 | |
|         {
 | |
|             // convert requires contiguous string, so copy
 | |
|             std::basic_string< typename std::iterator_traits< InputIterator >::value_type > seq(begin, end);
 | |
|             path_traits::convert(seq.c_str(), seq.c_str() + seq.size(), m_pathname, cvt);
 | |
|         }
 | |
|     }
 | |
| 
 | |
|     //  -----  assignments  -----
 | |
| 
 | |
|     // We need to explicitly define copy assignment as otherwise it will be implicitly defined as deleted because there is move assignment
 | |
|     path& operator=(path const& p)
 | |
|     {
 | |
|         return assign(p);
 | |
|     }
 | |
| 
 | |
|     path& operator=(string_type const& s)
 | |
|     {
 | |
|         return assign(s);
 | |
|     }
 | |
| 
 | |
|     path& operator=(const value_type* ptr)
 | |
|     {
 | |
|         return assign(ptr);
 | |
|     }
 | |
| 
 | |
|     template< class Source >
 | |
|     typename boost::enable_if_c<
 | |
|         path_traits::is_pathable< typename boost::decay< Source >::type >::value && !path_detail::is_native_pathable< Source >::value,
 | |
|         path&
 | |
|     >::type operator=(Source const& source)
 | |
|     {
 | |
|         return assign(source);
 | |
|     }
 | |
| 
 | |
|     path& assign(path const& p)
 | |
|     {
 | |
|         m_pathname = p.m_pathname;
 | |
|         return *this;
 | |
|     }
 | |
| 
 | |
|     path& assign(string_type const& s)
 | |
|     {
 | |
|         m_pathname = s;
 | |
|         return *this;
 | |
|     }
 | |
| 
 | |
|     path& assign(const value_type* ptr)
 | |
|     {
 | |
|         m_pathname = ptr;
 | |
|         return *this;
 | |
|     }
 | |
| 
 | |
|     template< class Source >
 | |
|     typename boost::enable_if_c<
 | |
|         path_traits::is_pathable< typename boost::decay< Source >::type >::value && !path_detail::is_native_pathable< Source >::value,
 | |
|         path&
 | |
|     >::type assign(Source const& source)
 | |
|     {
 | |
|         m_pathname.clear();
 | |
|         path_traits::dispatch(source, m_pathname);
 | |
|         return *this;
 | |
|     }
 | |
| 
 | |
|     path& assign(path const& p, codecvt_type const&)
 | |
|     {
 | |
|         m_pathname = p.m_pathname;
 | |
|         return *this;
 | |
|     }
 | |
| 
 | |
|     path& assign(string_type const& s, codecvt_type const&)
 | |
|     {
 | |
|         m_pathname = s;
 | |
|         return *this;
 | |
|     }
 | |
| 
 | |
|     path& assign(const value_type* ptr, codecvt_type const&)
 | |
|     {
 | |
|         m_pathname = ptr;
 | |
|         return *this;
 | |
|     }
 | |
| 
 | |
|     template< class Source >
 | |
|     typename boost::enable_if_c<
 | |
|         path_traits::is_pathable< typename boost::decay< Source >::type >::value && !path_detail::is_native_pathable< Source >::value,
 | |
|         path&
 | |
|     >::type assign(Source const& source, codecvt_type const& cvt)
 | |
|     {
 | |
|         m_pathname.clear();
 | |
|         path_traits::dispatch(source, m_pathname, cvt);
 | |
|         return *this;
 | |
|     }
 | |
| 
 | |
|     path& assign(const value_type* begin, const value_type* end)
 | |
|     {
 | |
|         m_pathname.assign(begin, end);
 | |
|         return *this;
 | |
|     }
 | |
| 
 | |
|     template< class InputIterator >
 | |
|     typename boost::disable_if< path_detail::is_native_char_ptr< InputIterator >, path& >::type
 | |
|     assign(InputIterator begin, InputIterator end)
 | |
|     {
 | |
|         m_pathname.clear();
 | |
|         if (begin != end)
 | |
|         {
 | |
|             std::basic_string< typename std::iterator_traits< InputIterator >::value_type > seq(begin, end);
 | |
|             path_traits::convert(seq.c_str(), seq.c_str() + seq.size(), m_pathname);
 | |
|         }
 | |
|         return *this;
 | |
|     }
 | |
| 
 | |
|     path& assign(const value_type* begin, const value_type* end, codecvt_type const&)
 | |
|     {
 | |
|         m_pathname.assign(begin, end);
 | |
|         return *this;
 | |
|     }
 | |
| 
 | |
|     template< class InputIterator >
 | |
|     typename boost::disable_if< path_detail::is_native_char_ptr< InputIterator >, path& >::type
 | |
|     assign(InputIterator begin, InputIterator end, codecvt_type const& cvt)
 | |
|     {
 | |
|         m_pathname.clear();
 | |
|         if (begin != end)
 | |
|         {
 | |
|             std::basic_string< typename std::iterator_traits< InputIterator >::value_type > seq(begin, end);
 | |
|             path_traits::convert(seq.c_str(), seq.c_str() + seq.size(), m_pathname, cvt);
 | |
|         }
 | |
|         return *this;
 | |
|     }
 | |
| 
 | |
|     //  -----  concatenation  -----
 | |
| 
 | |
|     path& operator+=(path const& p)
 | |
|     {
 | |
|         return concat(p);
 | |
|     }
 | |
| 
 | |
|     path& operator+=(const value_type* ptr)
 | |
|     {
 | |
|         return concat(ptr);
 | |
|     }
 | |
| 
 | |
|     path& operator+=(string_type const& s)
 | |
|     {
 | |
|         return concat(s);
 | |
|     }
 | |
| 
 | |
|     template< class Source >
 | |
|     typename boost::enable_if_c<
 | |
|         path_traits::is_pathable< typename boost::decay< Source >::type >::value && !path_detail::is_native_pathable< Source >::value,
 | |
|         path&
 | |
|     >::type operator+=(Source const& source)
 | |
|     {
 | |
|         return concat(source);
 | |
|     }
 | |
| 
 | |
|     path& operator+=(value_type c)
 | |
|     {
 | |
|         m_pathname.push_back(c);
 | |
|         return *this;
 | |
|     }
 | |
| 
 | |
|     template< class CharT >
 | |
|     typename boost::enable_if< boost::is_integral< CharT >, path& >::type
 | |
|     operator+=(CharT c)
 | |
|     {
 | |
|         CharT tmp[2];
 | |
|         tmp[0] = c;
 | |
|         tmp[1] = static_cast< CharT >(0);
 | |
|         return concat(tmp);
 | |
|     }
 | |
| 
 | |
|     path& concat(path const& p)
 | |
|     {
 | |
|         m_pathname += p.m_pathname;
 | |
|         return *this;
 | |
|     }
 | |
| 
 | |
|     path& concat(const value_type* ptr)
 | |
|     {
 | |
|         m_pathname += ptr;
 | |
|         return *this;
 | |
|     }
 | |
| 
 | |
|     path& concat(string_type const& s)
 | |
|     {
 | |
|         m_pathname += s;
 | |
|         return *this;
 | |
|     }
 | |
| 
 | |
|     template< class Source >
 | |
|     typename boost::enable_if_c<
 | |
|         path_traits::is_pathable< typename boost::decay< Source >::type >::value && !path_detail::is_native_pathable< Source >::value,
 | |
|         path&
 | |
|     >::type concat(Source const& source)
 | |
|     {
 | |
|         path_traits::dispatch(source, m_pathname);
 | |
|         return *this;
 | |
|     }
 | |
| 
 | |
|     path& concat(path const& p, codecvt_type const&)
 | |
|     {
 | |
|         m_pathname += p.m_pathname;
 | |
|         return *this;
 | |
|     }
 | |
| 
 | |
|     path& concat(const value_type* ptr, codecvt_type const&)
 | |
|     {
 | |
|         m_pathname += ptr;
 | |
|         return *this;
 | |
|     }
 | |
| 
 | |
|     path& concat(string_type const& s, codecvt_type const&)
 | |
|     {
 | |
|         m_pathname += s;
 | |
|         return *this;
 | |
|     }
 | |
| 
 | |
|     template< class Source >
 | |
|     typename boost::enable_if_c<
 | |
|         path_traits::is_pathable< typename boost::decay< Source >::type >::value && !path_detail::is_native_pathable< Source >::value,
 | |
|         path&
 | |
|     >::type concat(Source const& source, codecvt_type const& cvt)
 | |
|     {
 | |
|         path_traits::dispatch(source, m_pathname, cvt);
 | |
|         return *this;
 | |
|     }
 | |
| 
 | |
|     path& concat(const value_type* begin, const value_type* end)
 | |
|     {
 | |
|         m_pathname.append(begin, end);
 | |
|         return *this;
 | |
|     }
 | |
| 
 | |
|     template< class InputIterator >
 | |
|     typename boost::disable_if< path_detail::is_native_char_ptr< InputIterator >, path& >::type
 | |
|     concat(InputIterator begin, InputIterator end)
 | |
|     {
 | |
|         if (begin != end)
 | |
|         {
 | |
|             std::basic_string< typename std::iterator_traits< InputIterator >::value_type > seq(begin, end);
 | |
|             path_traits::convert(seq.c_str(), seq.c_str() + seq.size(), m_pathname);
 | |
|         }
 | |
|         return *this;
 | |
|     }
 | |
| 
 | |
|     path& concat(const value_type* begin, const value_type* end, codecvt_type const&)
 | |
|     {
 | |
|         m_pathname.append(begin, end);
 | |
|         return *this;
 | |
|     }
 | |
| 
 | |
|     template< class InputIterator >
 | |
|     typename boost::disable_if< path_detail::is_native_char_ptr< InputIterator >, path& >::type
 | |
|     concat(InputIterator begin, InputIterator end, codecvt_type const& cvt)
 | |
|     {
 | |
|         if (begin != end)
 | |
|         {
 | |
|             std::basic_string< typename std::iterator_traits< InputIterator >::value_type > seq(begin, end);
 | |
|             path_traits::convert(seq.c_str(), seq.c_str() + seq.size(), m_pathname, cvt);
 | |
|         }
 | |
|         return *this;
 | |
|     }
 | |
| 
 | |
|     //  -----  appends  -----
 | |
| 
 | |
|     //  if a separator is added, it is the preferred separator for the platform;
 | |
|     //  slash for POSIX, backslash for Windows
 | |
| 
 | |
|     path& operator/=(path const& p)
 | |
|     {
 | |
|         return append(p);
 | |
|     }
 | |
| 
 | |
|     path& operator/=(const value_type* ptr)
 | |
|     {
 | |
|         return append(ptr);
 | |
|     }
 | |
| 
 | |
|     path& operator/=(string_type const& s)
 | |
|     {
 | |
|         return append(s);
 | |
|     }
 | |
| 
 | |
|     template< class Source >
 | |
|     BOOST_FORCEINLINE typename boost::enable_if_c<
 | |
|         path_traits::is_pathable< typename boost::decay< Source >::type >::value && !path_detail::is_native_pathable< Source >::value,
 | |
|         path&
 | |
|     >::type operator/=(Source const& source)
 | |
|     {
 | |
|         return append(source);
 | |
|     }
 | |
| 
 | |
|     BOOST_FORCEINLINE path& append(path const& p)
 | |
|     {
 | |
|         BOOST_FILESYSTEM_VERSIONED_SYM(append)(p);
 | |
|         return *this;
 | |
|     }
 | |
| 
 | |
|     BOOST_FORCEINLINE path& append(string_type const& p)
 | |
|     {
 | |
|         BOOST_FILESYSTEM_VERSIONED_SYM(append)(p.c_str(), p.c_str() + p.size());
 | |
|         return *this;
 | |
|     }
 | |
| 
 | |
|     BOOST_FORCEINLINE path& append(const value_type* ptr)
 | |
|     {
 | |
|         BOOST_FILESYSTEM_VERSIONED_SYM(append)(ptr, ptr + string_type::traits_type::length(ptr));
 | |
|         return *this;
 | |
|     }
 | |
| 
 | |
|     template< class Source >
 | |
|     typename boost::enable_if_c<
 | |
|         path_traits::is_pathable< typename boost::decay< Source >::type >::value && !path_detail::is_native_pathable< Source >::value,
 | |
|         path&
 | |
|     >::type append(Source const& source)
 | |
|     {
 | |
|         path p;
 | |
|         path_traits::dispatch(source, p.m_pathname);
 | |
|         return append(p);
 | |
|     }
 | |
| 
 | |
|     BOOST_FORCEINLINE path& append(path const& p, codecvt_type const&)
 | |
|     {
 | |
|         BOOST_FILESYSTEM_VERSIONED_SYM(append)(p);
 | |
|         return *this;
 | |
|     }
 | |
| 
 | |
|     BOOST_FORCEINLINE path& append(string_type const& p, codecvt_type const&)
 | |
|     {
 | |
|         BOOST_FILESYSTEM_VERSIONED_SYM(append)(p.c_str(), p.c_str() + p.size());
 | |
|         return *this;
 | |
|     }
 | |
| 
 | |
|     BOOST_FORCEINLINE path& append(const value_type* ptr, codecvt_type const&)
 | |
|     {
 | |
|         BOOST_FILESYSTEM_VERSIONED_SYM(append)(ptr, ptr + string_type::traits_type::length(ptr));
 | |
|         return *this;
 | |
|     }
 | |
| 
 | |
|     template< class Source >
 | |
|     typename boost::enable_if_c<
 | |
|         path_traits::is_pathable< typename boost::decay< Source >::type >::value && !path_detail::is_native_pathable< Source >::value,
 | |
|         path&
 | |
|     >::type append(Source const& source, codecvt_type const& cvt)
 | |
|     {
 | |
|         path p;
 | |
|         path_traits::dispatch(source, p.m_pathname, cvt);
 | |
|         return append(p);
 | |
|     }
 | |
| 
 | |
|     BOOST_FORCEINLINE path& append(const value_type* begin, const value_type* end)
 | |
|     {
 | |
|         BOOST_FILESYSTEM_VERSIONED_SYM(append)(begin, end);
 | |
|         return *this;
 | |
|     }
 | |
| 
 | |
|     template< class InputIterator >
 | |
|     typename boost::disable_if< path_detail::is_native_char_ptr< InputIterator >, path& >::type
 | |
|     append(InputIterator begin, InputIterator end)
 | |
|     {
 | |
|         path p;
 | |
|         if (begin != end)
 | |
|         {
 | |
|             std::basic_string< typename std::iterator_traits< InputIterator >::value_type > seq(begin, end);
 | |
|             path_traits::convert(seq.c_str(), seq.c_str() + seq.size(), p.m_pathname);
 | |
|         }
 | |
|         return append(p);
 | |
|     }
 | |
| 
 | |
|     BOOST_FORCEINLINE path& append(const value_type* begin, const value_type* end, codecvt_type const&)
 | |
|     {
 | |
|         BOOST_FILESYSTEM_VERSIONED_SYM(append)(begin, end);
 | |
|         return *this;
 | |
|     }
 | |
| 
 | |
|     template< class InputIterator >
 | |
|     typename boost::disable_if< path_detail::is_native_char_ptr< InputIterator >, path& >::type
 | |
|     append(InputIterator begin, InputIterator end, const codecvt_type& cvt)
 | |
|     {
 | |
|         path p;
 | |
|         if (begin != end)
 | |
|         {
 | |
|             std::basic_string< typename std::iterator_traits< InputIterator >::value_type > seq(begin, end);
 | |
|             path_traits::convert(seq.c_str(), seq.c_str() + seq.size(), p.m_pathname, cvt);
 | |
|         }
 | |
|         return append(p);
 | |
|     }
 | |
| 
 | |
|     //  -----  modifiers  -----
 | |
| 
 | |
|     void clear() BOOST_NOEXCEPT { m_pathname.clear(); }
 | |
| #ifdef BOOST_POSIX_API
 | |
|     path& make_preferred()
 | |
|     {
 | |
|         // No effect on POSIX
 | |
|         return *this;
 | |
|     }
 | |
| #else // BOOST_WINDOWS_API
 | |
|     BOOST_FILESYSTEM_DECL path& make_preferred(); // change slashes to backslashes
 | |
| #endif
 | |
|     BOOST_FILESYSTEM_DECL path& remove_filename();
 | |
|     BOOST_FILESYSTEM_DECL path& remove_trailing_separator();
 | |
|     BOOST_FORCEINLINE path& replace_extension(path const& new_extension = path())
 | |
|     {
 | |
|         BOOST_FILESYSTEM_VERSIONED_SYM(replace_extension)(new_extension);
 | |
|         return *this;
 | |
|     }
 | |
|     void swap(path& rhs) BOOST_NOEXCEPT { m_pathname.swap(rhs.m_pathname); }
 | |
| 
 | |
|     //  -----  observers  -----
 | |
| 
 | |
|     //  For operating systems that format file paths differently than directory
 | |
|     //  paths, return values from observers are formatted as file names unless there
 | |
|     //  is a trailing separator, in which case returns are formatted as directory
 | |
|     //  paths. POSIX and Windows make no such distinction.
 | |
| 
 | |
|     //  Implementations are permitted to return const values or const references.
 | |
| 
 | |
|     //  The string or path returned by an observer are specified as being formatted
 | |
|     //  as "native" or "generic".
 | |
|     //
 | |
|     //  For POSIX, these are all the same format; slashes and backslashes are as input and
 | |
|     //  are not modified.
 | |
|     //
 | |
|     //  For Windows,   native:    as input; slashes and backslashes are not modified;
 | |
|     //                            this is the format of the internally stored string.
 | |
|     //                 generic:   backslashes are converted to slashes
 | |
| 
 | |
|     //  -----  native format observers  -----
 | |
| 
 | |
|     string_type const& native() const BOOST_NOEXCEPT { return m_pathname; }
 | |
|     const value_type* c_str() const BOOST_NOEXCEPT { return m_pathname.c_str(); }
 | |
|     string_type::size_type size() const BOOST_NOEXCEPT { return m_pathname.size(); }
 | |
| 
 | |
|     template< class String >
 | |
|     String string() const;
 | |
| 
 | |
|     template< class String >
 | |
|     String string(codecvt_type const& cvt) const;
 | |
| 
 | |
| #ifdef BOOST_WINDOWS_API
 | |
|     std::string string() const
 | |
|     {
 | |
|         std::string tmp;
 | |
|         if (!m_pathname.empty())
 | |
|             path_traits::convert(m_pathname.c_str(), m_pathname.c_str() + m_pathname.size(), tmp);
 | |
|         return tmp;
 | |
|     }
 | |
|     std::string string(codecvt_type const& cvt) const
 | |
|     {
 | |
|         std::string tmp;
 | |
|         if (!m_pathname.empty())
 | |
|             path_traits::convert(m_pathname.c_str(), m_pathname.c_str() + m_pathname.size(), tmp, cvt);
 | |
|         return tmp;
 | |
|     }
 | |
| 
 | |
|     //  string_type is std::wstring, so there is no conversion
 | |
|     std::wstring const& wstring() const { return m_pathname; }
 | |
|     std::wstring const& wstring(codecvt_type const&) const { return m_pathname; }
 | |
| #else // BOOST_POSIX_API
 | |
|     //  string_type is std::string, so there is no conversion
 | |
|     std::string const& string() const { return m_pathname; }
 | |
|     std::string const& string(codecvt_type const&) const { return m_pathname; }
 | |
| 
 | |
|     std::wstring wstring() const
 | |
|     {
 | |
|         std::wstring tmp;
 | |
|         if (!m_pathname.empty())
 | |
|             path_traits::convert(m_pathname.c_str(), m_pathname.c_str() + m_pathname.size(), tmp);
 | |
|         return tmp;
 | |
|     }
 | |
|     std::wstring wstring(codecvt_type const& cvt) const
 | |
|     {
 | |
|         std::wstring tmp;
 | |
|         if (!m_pathname.empty())
 | |
|             path_traits::convert(m_pathname.c_str(), m_pathname.c_str() + m_pathname.size(), tmp, cvt);
 | |
|         return tmp;
 | |
|     }
 | |
| #endif
 | |
| 
 | |
|     //  -----  generic format observers  -----
 | |
| 
 | |
|     //  Experimental generic function returning generic formatted path (i.e. separators
 | |
|     //  are forward slashes). Motivation: simpler than a family of generic_*string
 | |
|     //  functions.
 | |
| #ifdef BOOST_WINDOWS_API
 | |
|     BOOST_FILESYSTEM_DECL path generic_path() const;
 | |
| #else
 | |
|     path generic_path() const { return path(*this); }
 | |
| #endif
 | |
| 
 | |
|     template< class String >
 | |
|     String generic_string() const;
 | |
| 
 | |
|     template< class String >
 | |
|     String generic_string(codecvt_type const& cvt) const;
 | |
| 
 | |
| #ifdef BOOST_WINDOWS_API
 | |
|     std::string generic_string() const { return generic_path().string(); }
 | |
|     std::string generic_string(codecvt_type const& cvt) const { return generic_path().string(cvt); }
 | |
|     std::wstring generic_wstring() const { return generic_path().wstring(); }
 | |
|     std::wstring generic_wstring(codecvt_type const&) const { return generic_wstring(); }
 | |
| #else // BOOST_POSIX_API
 | |
|     //  On POSIX-like systems, the generic format is the same as the native format
 | |
|     std::string const& generic_string() const { return m_pathname; }
 | |
|     std::string const& generic_string(codecvt_type const&) const { return m_pathname; }
 | |
|     std::wstring generic_wstring() const { return this->wstring(); }
 | |
|     std::wstring generic_wstring(codecvt_type const& cvt) const { return this->wstring(cvt); }
 | |
| #endif
 | |
| 
 | |
|     //  -----  compare  -----
 | |
| 
 | |
|     BOOST_FORCEINLINE int compare(path const& p) const BOOST_NOEXCEPT // generic, lexicographical
 | |
|     {
 | |
|         return BOOST_FILESYSTEM_VERSIONED_SYM(compare)(p);
 | |
|     }
 | |
|     int compare(std::string const& s) const { return compare(path(s)); }
 | |
|     int compare(const value_type* s) const { return compare(path(s)); }
 | |
| 
 | |
|     //  -----  decomposition  -----
 | |
| 
 | |
|     path root_path() const { return path(m_pathname.c_str(), m_pathname.c_str() + find_root_path_size()); }
 | |
|     // returns 0 or 1 element path even on POSIX, root_name() is non-empty() for network paths
 | |
|     path root_name() const { return path(m_pathname.c_str(), m_pathname.c_str() + find_root_name_size()); }
 | |
| 
 | |
|     // returns 0 or 1 element path
 | |
|     path root_directory() const
 | |
|     {
 | |
|         path_detail::substring root_dir = find_root_directory();
 | |
|         const value_type* p = m_pathname.c_str() + root_dir.pos;
 | |
|         return path(p, p + root_dir.size);
 | |
|     }
 | |
| 
 | |
|     path relative_path() const
 | |
|     {
 | |
|         path_detail::substring root_dir = find_relative_path();
 | |
|         const value_type* p = m_pathname.c_str() + root_dir.pos;
 | |
|         return path(p, p + root_dir.size);
 | |
|     }
 | |
| 
 | |
|     path parent_path() const { return path(m_pathname.c_str(), m_pathname.c_str() + find_parent_path_size()); }
 | |
| 
 | |
|     BOOST_FORCEINLINE path filename() const { return BOOST_FILESYSTEM_VERSIONED_SYM(filename)(); }   // returns 0 or 1 element path
 | |
|     BOOST_FORCEINLINE path stem() const { return BOOST_FILESYSTEM_VERSIONED_SYM(stem)(); }           // returns 0 or 1 element path
 | |
|     BOOST_FORCEINLINE path extension() const { return BOOST_FILESYSTEM_VERSIONED_SYM(extension)(); } // returns 0 or 1 element path
 | |
| 
 | |
|     //  -----  query  -----
 | |
| 
 | |
|     bool empty() const BOOST_NOEXCEPT { return m_pathname.empty(); }
 | |
|     bool filename_is_dot() const;
 | |
|     bool filename_is_dot_dot() const;
 | |
|     bool has_root_path() const { return find_root_path_size() > 0; }
 | |
|     bool has_root_name() const { return find_root_name_size() > 0; }
 | |
|     bool has_root_directory() const { return find_root_directory().size > 0; }
 | |
|     bool has_relative_path() const { return find_relative_path().size > 0; }
 | |
|     bool has_parent_path() const { return find_parent_path_size() > 0; }
 | |
|     BOOST_FORCEINLINE bool has_filename() const { return BOOST_FILESYSTEM_VERSIONED_SYM(has_filename)(); }
 | |
|     bool has_stem() const { return !stem().empty(); }
 | |
|     bool has_extension() const { return !extension().empty(); }
 | |
|     bool is_relative() const { return !is_absolute(); }
 | |
|     bool is_absolute() const
 | |
|     {
 | |
|         // Windows CE has no root name (aka drive letters)
 | |
| #if defined(BOOST_WINDOWS_API) && !defined(UNDER_CE)
 | |
|         return has_root_name() && has_root_directory();
 | |
| #else
 | |
|         return has_root_directory();
 | |
| #endif
 | |
|     }
 | |
| 
 | |
|     //  -----  lexical operations  -----
 | |
| 
 | |
|     BOOST_FORCEINLINE path lexically_normal() const { return BOOST_FILESYSTEM_VERSIONED_SYM(lexically_normal)(); }
 | |
|     BOOST_FILESYSTEM_DECL path lexically_relative(path const& base) const;
 | |
|     path lexically_proximate(path const& base) const
 | |
|     {
 | |
|         path tmp(lexically_relative(base));
 | |
|         return tmp.empty() ? *this : tmp;
 | |
|     }
 | |
| 
 | |
|     //  -----  iterators  -----
 | |
| 
 | |
|     class iterator;
 | |
|     friend class iterator;
 | |
|     typedef iterator const_iterator;
 | |
|     class reverse_iterator;
 | |
|     typedef reverse_iterator const_reverse_iterator;
 | |
| 
 | |
|     BOOST_FILESYSTEM_DECL iterator begin() const;
 | |
|     BOOST_FILESYSTEM_DECL iterator end() const;
 | |
|     reverse_iterator rbegin() const;
 | |
|     reverse_iterator rend() const;
 | |
| 
 | |
|     //  -----  static member functions  -----
 | |
| 
 | |
|     static BOOST_FILESYSTEM_DECL std::locale imbue(std::locale const& loc);
 | |
|     static BOOST_FILESYSTEM_DECL codecvt_type const& codecvt();
 | |
| 
 | |
|     //  -----  deprecated functions  -----
 | |
| 
 | |
| #if !defined(BOOST_FILESYSTEM_NO_DEPRECATED)
 | |
|     //  recently deprecated functions supplied by default
 | |
|     path& normalize()
 | |
|     {
 | |
|         path tmp(lexically_normal());
 | |
|         m_pathname.swap(tmp.m_pathname);
 | |
|         return *this;
 | |
|     }
 | |
|     path& remove_leaf() { return remove_filename(); }
 | |
|     path leaf() const { return filename(); }
 | |
|     path branch_path() const { return parent_path(); }
 | |
|     path generic() const { return generic_path(); }
 | |
|     bool has_leaf() const { return !m_pathname.empty(); }
 | |
|     bool has_branch_path() const { return !parent_path().empty(); }
 | |
|     bool is_complete() const { return is_absolute(); }
 | |
| #endif
 | |
| 
 | |
| #if defined(BOOST_FILESYSTEM_DEPRECATED)
 | |
|     //  deprecated functions with enough signature or semantic changes that they are
 | |
|     //  not supplied by default
 | |
|     std::string file_string() const { return string(); }
 | |
|     std::string directory_string() const { return string(); }
 | |
|     std::string native_file_string() const { return string(); }
 | |
|     std::string native_directory_string() const { return string(); }
 | |
|     string_type external_file_string() const { return native(); }
 | |
|     string_type external_directory_string() const { return native(); }
 | |
| #endif
 | |
| 
 | |
|     //--------------------------------------------------------------------------------------//
 | |
|     //                            class path private members                                //
 | |
|     //--------------------------------------------------------------------------------------//
 | |
| private:
 | |
|     bool has_filename_v3() const { return !m_pathname.empty(); }
 | |
|     bool has_filename_v4() const { return find_filename_v4_size() > 0; }
 | |
|     BOOST_FILESYSTEM_DECL path filename_v3() const;
 | |
|     path filename_v4() const
 | |
|     {
 | |
|         string_type::size_type filename_size = find_filename_v4_size();
 | |
|         string_type::size_type pos = m_pathname.size() - filename_size;
 | |
|         const value_type* p = m_pathname.c_str() + pos;
 | |
|         return path(p, p + filename_size);
 | |
|     }
 | |
|     BOOST_FILESYSTEM_DECL path stem_v3() const;
 | |
|     BOOST_FILESYSTEM_DECL path stem_v4() const;
 | |
|     BOOST_FILESYSTEM_DECL path extension_v3() const;
 | |
|     path extension_v4() const
 | |
|     {
 | |
|         string_type::size_type extension_size = find_extension_v4_size();
 | |
|         string_type::size_type pos = m_pathname.size() - extension_size;
 | |
|         const value_type* p = m_pathname.c_str() + pos;
 | |
|         return path(p, p + extension_size);
 | |
|     }
 | |
| 
 | |
|     BOOST_FILESYSTEM_DECL void replace_extension_v3(path const& new_extension);
 | |
|     BOOST_FILESYSTEM_DECL void replace_extension_v4(path const& new_extension);
 | |
| 
 | |
|     BOOST_FILESYSTEM_DECL path lexically_normal_v3() const;
 | |
|     BOOST_FILESYSTEM_DECL path lexically_normal_v4() const;
 | |
| 
 | |
|     BOOST_FILESYSTEM_DECL int compare_v3(path const& p) const BOOST_NOEXCEPT;
 | |
|     BOOST_FILESYSTEM_DECL int compare_v4(path const& p) const BOOST_NOEXCEPT;
 | |
| 
 | |
|     BOOST_FILESYSTEM_DECL void append_v3(const value_type* b, const value_type* e);
 | |
|     BOOST_FILESYSTEM_DECL void append_v4(const value_type* b, const value_type* e);
 | |
|     BOOST_FILESYSTEM_DECL void append_v3(path const& p);
 | |
|     BOOST_FILESYSTEM_DECL void append_v4(path const& p);
 | |
| 
 | |
|     //  Returns: If separator is to be appended, m_pathname.size() before append. Otherwise 0.
 | |
|     //  Note: An append is never performed if size()==0, so a returned 0 is unambiguous.
 | |
|     BOOST_FILESYSTEM_DECL string_type::size_type append_separator_if_needed();
 | |
|     BOOST_FILESYSTEM_DECL void erase_redundant_separator(string_type::size_type sep_pos);
 | |
| 
 | |
|     BOOST_FILESYSTEM_DECL string_type::size_type find_root_name_size() const;
 | |
|     BOOST_FILESYSTEM_DECL string_type::size_type find_root_path_size() const;
 | |
|     BOOST_FILESYSTEM_DECL path_detail::substring find_root_directory() const;
 | |
|     BOOST_FILESYSTEM_DECL path_detail::substring find_relative_path() const;
 | |
|     BOOST_FILESYSTEM_DECL string_type::size_type find_parent_path_size() const;
 | |
|     BOOST_FILESYSTEM_DECL string_type::size_type find_filename_v4_size() const;
 | |
|     BOOST_FILESYSTEM_DECL string_type::size_type find_extension_v4_size() const;
 | |
| 
 | |
| private:
 | |
|     /*
 | |
|      * m_pathname has the type, encoding, and format required by the native
 | |
|      * operating system. Thus for POSIX and Windows there is no conversion for
 | |
|      * passing m_pathname.c_str() to the O/S API or when obtaining a path from the
 | |
|      * O/S API. POSIX encoding is unspecified other than for dot and slash
 | |
|      * characters; POSIX just treats paths as a sequence of bytes. Windows
 | |
|      * encoding is UCS-2 or UTF-16 depending on the version.
 | |
|      */
 | |
|     string_type m_pathname;     // Windows: as input; backslashes NOT converted to slashes,
 | |
|                                 // slashes NOT converted to backslashes
 | |
| };
 | |
| 
 | |
| namespace detail {
 | |
| BOOST_FILESYSTEM_DECL int lex_compare_v3(path::iterator first1, path::iterator last1, path::iterator first2, path::iterator last2);
 | |
| BOOST_FILESYSTEM_DECL int lex_compare_v4(path::iterator first1, path::iterator last1, path::iterator first2, path::iterator last2);
 | |
| BOOST_FILESYSTEM_DECL path const& dot_path();
 | |
| BOOST_FILESYSTEM_DECL path const& dot_dot_path();
 | |
| } // namespace detail
 | |
| 
 | |
| #ifndef BOOST_FILESYSTEM_NO_DEPRECATED
 | |
| typedef path wpath;
 | |
| #endif
 | |
| 
 | |
| //------------------------------------------------------------------------------------//
 | |
| //                             class path::iterator                                   //
 | |
| //------------------------------------------------------------------------------------//
 | |
| 
 | |
| class path::iterator :
 | |
|     public boost::iterator_facade<
 | |
|         path::iterator,
 | |
|         const path,
 | |
|         boost::bidirectional_traversal_tag
 | |
|     >
 | |
| {
 | |
| private:
 | |
|     friend class boost::iterator_core_access;
 | |
|     friend class boost::filesystem::path;
 | |
|     friend class boost::filesystem::path::reverse_iterator;
 | |
|     friend BOOST_FILESYSTEM_DECL int detail::lex_compare_v3(path::iterator first1, path::iterator last1, path::iterator first2, path::iterator last2);
 | |
| 
 | |
|     path const& dereference() const { return m_element; }
 | |
| 
 | |
|     bool equal(iterator const& rhs) const
 | |
|     {
 | |
|         return m_path_ptr == rhs.m_path_ptr && m_pos == rhs.m_pos;
 | |
|     }
 | |
| 
 | |
|     BOOST_FORCEINLINE void increment() { BOOST_FILESYSTEM_VERSIONED_SYM(increment)(); }
 | |
|     BOOST_FORCEINLINE void decrement() { BOOST_FILESYSTEM_VERSIONED_SYM(decrement)(); }
 | |
| 
 | |
| private:
 | |
|     BOOST_FILESYSTEM_DECL void increment_v3();
 | |
|     BOOST_FILESYSTEM_DECL void increment_v4();
 | |
|     BOOST_FILESYSTEM_DECL void decrement_v3();
 | |
|     BOOST_FILESYSTEM_DECL void decrement_v4();
 | |
| 
 | |
| private:
 | |
|     // current element
 | |
|     path m_element;
 | |
|     // path being iterated over
 | |
|     const path* m_path_ptr;
 | |
|     // position of m_element in m_path_ptr->m_pathname.
 | |
|     // if m_element is implicit dot, m_pos is the
 | |
|     // position of the last separator in the path.
 | |
|     // end() iterator is indicated by
 | |
|     // m_pos == m_path_ptr->m_pathname.size()
 | |
|     string_type::size_type m_pos;
 | |
| };
 | |
| 
 | |
| //------------------------------------------------------------------------------------//
 | |
| //                         class path::reverse_iterator                               //
 | |
| //------------------------------------------------------------------------------------//
 | |
| 
 | |
| class path::reverse_iterator :
 | |
|     public boost::iterator_facade<
 | |
|         path::reverse_iterator,
 | |
|         const path,
 | |
|         boost::bidirectional_traversal_tag
 | |
|     >
 | |
| {
 | |
| public:
 | |
|     explicit reverse_iterator(iterator itr) :
 | |
|         m_itr(itr)
 | |
|     {
 | |
|         if (itr != itr.m_path_ptr->begin())
 | |
|             m_element = *--itr;
 | |
|     }
 | |
| 
 | |
| private:
 | |
|     friend class boost::iterator_core_access;
 | |
|     friend class boost::filesystem::path;
 | |
| 
 | |
|     path const& dereference() const { return m_element; }
 | |
|     bool equal(reverse_iterator const& rhs) const { return m_itr == rhs.m_itr; }
 | |
| 
 | |
|     void increment()
 | |
|     {
 | |
|         --m_itr;
 | |
|         if (m_itr != m_itr.m_path_ptr->begin())
 | |
|         {
 | |
|             iterator tmp = m_itr;
 | |
|             m_element = *--tmp;
 | |
|         }
 | |
|     }
 | |
| 
 | |
|     void decrement()
 | |
|     {
 | |
|         m_element = *m_itr;
 | |
|         ++m_itr;
 | |
|     }
 | |
| 
 | |
| private:
 | |
|     iterator m_itr;
 | |
|     path m_element;
 | |
| };
 | |
| 
 | |
| //------------------------------------------------------------------------------------//
 | |
| //                                                                                    //
 | |
| //                              non-member functions                                  //
 | |
| //                                                                                    //
 | |
| //------------------------------------------------------------------------------------//
 | |
| 
 | |
| //  std::lexicographical_compare would infinitely recurse because path iterators
 | |
| //  yield paths, so provide a path aware version
 | |
| inline bool lexicographical_compare(path::iterator first1, path::iterator last1, path::iterator first2, path::iterator last2)
 | |
| {
 | |
|     return BOOST_FILESYSTEM_VERSIONED_SYM(detail::lex_compare)(first1, last1, first2, last2) < 0;
 | |
| }
 | |
| 
 | |
| inline bool operator==(path const& lhs, path const& rhs)
 | |
| {
 | |
|     return lhs.compare(rhs) == 0;
 | |
| }
 | |
| 
 | |
| inline bool operator==(path const& lhs, path::string_type const& rhs)
 | |
| {
 | |
|     return lhs.compare(rhs) == 0;
 | |
| }
 | |
| 
 | |
| inline bool operator==(path::string_type const& lhs, path const& rhs)
 | |
| {
 | |
|     return rhs.compare(lhs) == 0;
 | |
| }
 | |
| 
 | |
| inline bool operator==(path const& lhs, const path::value_type* rhs)
 | |
| {
 | |
|     return lhs.compare(rhs) == 0;
 | |
| }
 | |
| 
 | |
| inline bool operator==(const path::value_type* lhs, path const& rhs)
 | |
| {
 | |
|     return rhs.compare(lhs) == 0;
 | |
| }
 | |
| 
 | |
| inline bool operator!=(path const& lhs, path const& rhs)
 | |
| {
 | |
|     return lhs.compare(rhs) != 0;
 | |
| }
 | |
| 
 | |
| inline bool operator!=(path const& lhs, path::string_type const& rhs)
 | |
| {
 | |
|     return lhs.compare(rhs) != 0;
 | |
| }
 | |
| 
 | |
| inline bool operator!=(path::string_type const& lhs, path const& rhs)
 | |
| {
 | |
|     return rhs.compare(lhs) != 0;
 | |
| }
 | |
| 
 | |
| inline bool operator!=(path const& lhs, const path::value_type* rhs)
 | |
| {
 | |
|     return lhs.compare(rhs) != 0;
 | |
| }
 | |
| 
 | |
| inline bool operator!=(const path::value_type* lhs, path const& rhs)
 | |
| {
 | |
|     return rhs.compare(lhs) != 0;
 | |
| }
 | |
| 
 | |
| // TODO: why do == and != have additional overloads, but the others don't?
 | |
| 
 | |
| inline bool operator<(path const& lhs, path const& rhs)
 | |
| {
 | |
|     return lhs.compare(rhs) < 0;
 | |
| }
 | |
| inline bool operator<=(path const& lhs, path const& rhs)
 | |
| {
 | |
|     return !(rhs < lhs);
 | |
| }
 | |
| inline bool operator>(path const& lhs, path const& rhs)
 | |
| {
 | |
|     return rhs < lhs;
 | |
| }
 | |
| inline bool operator>=(path const& lhs, path const& rhs)
 | |
| {
 | |
|     return !(lhs < rhs);
 | |
| }
 | |
| 
 | |
| // Note: Declared as a template to delay binding to Boost.ContainerHash functions and make the dependency optional
 | |
| template< typename T >
 | |
| inline typename boost::enable_if< boost::is_same< T, path >, std::size_t >::type hash_value(T const& p) BOOST_NOEXCEPT
 | |
| {
 | |
| #ifdef BOOST_WINDOWS_API
 | |
|     std::size_t seed = 0;
 | |
|     for (typename T::value_type const* it = p.c_str(); *it; ++it)
 | |
|         hash_combine(seed, *it == L'/' ? L'\\' : *it);
 | |
|     return seed;
 | |
| #else // BOOST_POSIX_API
 | |
|     return hash_range(p.native().begin(), p.native().end());
 | |
| #endif
 | |
| }
 | |
| 
 | |
| inline void swap(path& lhs, path& rhs) BOOST_NOEXCEPT
 | |
| {
 | |
|     lhs.swap(rhs);
 | |
| }
 | |
| 
 | |
| inline path operator/(path const& lhs, path const& rhs)
 | |
| {
 | |
|     path p = lhs;
 | |
|     p /= rhs;
 | |
|     return p;
 | |
| }
 | |
| 
 | |
| #if !defined(BOOST_NO_CXX11_RVALUE_REFERENCES)
 | |
| inline path operator/(path&& lhs, path const& rhs)
 | |
| {
 | |
|     lhs /= rhs;
 | |
|     return std::move(lhs);
 | |
| }
 | |
| #endif
 | |
| 
 | |
| //  inserters and extractors
 | |
| //    use boost::io::quoted() to handle spaces in paths
 | |
| //    use '&' as escape character to ease use for Windows paths
 | |
| 
 | |
| template< class Char, class Traits >
 | |
| inline std::basic_ostream< Char, Traits >&
 | |
| operator<<(std::basic_ostream< Char, Traits >& os, path const& p)
 | |
| {
 | |
|     return os << boost::io::quoted(p.template string< std::basic_string< Char > >(), static_cast< Char >('&'));
 | |
| }
 | |
| 
 | |
| template< class Char, class Traits >
 | |
| inline std::basic_istream< Char, Traits >&
 | |
| operator>>(std::basic_istream< Char, Traits >& is, path& p)
 | |
| {
 | |
|     std::basic_string< Char > str;
 | |
|     is >> boost::io::quoted(str, static_cast< Char >('&'));
 | |
|     p = str;
 | |
|     return is;
 | |
| }
 | |
| 
 | |
| //  name_checks
 | |
| 
 | |
| //  These functions are holdovers from version 1. It isn't clear they have much
 | |
| //  usefulness, or how to generalize them for later versions.
 | |
| 
 | |
| BOOST_FILESYSTEM_DECL bool portable_posix_name(std::string const& name);
 | |
| BOOST_FILESYSTEM_DECL bool windows_name(std::string const& name);
 | |
| BOOST_FILESYSTEM_DECL bool portable_name(std::string const& name);
 | |
| BOOST_FILESYSTEM_DECL bool portable_directory_name(std::string const& name);
 | |
| BOOST_FILESYSTEM_DECL bool portable_file_name(std::string const& name);
 | |
| BOOST_FILESYSTEM_DECL bool native(std::string const& name);
 | |
| 
 | |
| namespace detail {
 | |
| 
 | |
| //  For POSIX, is_directory_separator() and is_element_separator() are identical since
 | |
| //  a forward slash is the only valid directory separator and also the only valid
 | |
| //  element separator. For Windows, forward slash and back slash are the possible
 | |
| //  directory separators, but colon (example: "c:foo") is also an element separator.
 | |
| inline bool is_directory_separator(path::value_type c) BOOST_NOEXCEPT
 | |
| {
 | |
|     return c == path::separator
 | |
| #ifdef BOOST_WINDOWS_API
 | |
|         || c == path::preferred_separator
 | |
| #endif
 | |
|         ;
 | |
| }
 | |
| 
 | |
| inline bool is_element_separator(path::value_type c) BOOST_NOEXCEPT
 | |
| {
 | |
|     return c == path::separator
 | |
| #ifdef BOOST_WINDOWS_API
 | |
|         || c == path::preferred_separator || c == L':'
 | |
| #endif
 | |
|         ;
 | |
| }
 | |
| 
 | |
| } // namespace detail
 | |
| 
 | |
| //------------------------------------------------------------------------------------//
 | |
| //                  class path miscellaneous function implementations                 //
 | |
| //------------------------------------------------------------------------------------//
 | |
| 
 | |
| inline path::reverse_iterator path::rbegin() const
 | |
| {
 | |
|     return reverse_iterator(end());
 | |
| }
 | |
| inline path::reverse_iterator path::rend() const
 | |
| {
 | |
|     return reverse_iterator(begin());
 | |
| }
 | |
| 
 | |
| inline bool path::filename_is_dot() const
 | |
| {
 | |
|     // implicit dot is tricky, so actually call filename(); see path::filename() example
 | |
|     // in reference.html
 | |
|     path p(filename());
 | |
|     return p.size() == 1 && *p.c_str() == dot;
 | |
| }
 | |
| 
 | |
| inline bool path::filename_is_dot_dot() const
 | |
| {
 | |
|     return size() >= 2 && m_pathname[size() - 1] == dot && m_pathname[size() - 2] == dot && (m_pathname.size() == 2 || detail::is_element_separator(m_pathname[size() - 3]));
 | |
|     // use detail::is_element_separator() rather than detail::is_directory_separator
 | |
|     // to deal with "c:.." edge case on Windows when ':' acts as a separator
 | |
| }
 | |
| 
 | |
| //--------------------------------------------------------------------------------------//
 | |
| //                     class path member template specializations                       //
 | |
| //--------------------------------------------------------------------------------------//
 | |
| 
 | |
| template<>
 | |
| inline std::string path::string< std::string >() const
 | |
| {
 | |
|     return string();
 | |
| }
 | |
| 
 | |
| template<>
 | |
| inline std::wstring path::string< std::wstring >() const
 | |
| {
 | |
|     return wstring();
 | |
| }
 | |
| 
 | |
| template<>
 | |
| inline std::string path::string< std::string >(const codecvt_type& cvt) const
 | |
| {
 | |
|     return string(cvt);
 | |
| }
 | |
| 
 | |
| template<>
 | |
| inline std::wstring path::string< std::wstring >(const codecvt_type& cvt) const
 | |
| {
 | |
|     return wstring(cvt);
 | |
| }
 | |
| 
 | |
| template<>
 | |
| inline std::string path::generic_string< std::string >() const
 | |
| {
 | |
|     return generic_string();
 | |
| }
 | |
| 
 | |
| template<>
 | |
| inline std::wstring path::generic_string< std::wstring >() const
 | |
| {
 | |
|     return generic_wstring();
 | |
| }
 | |
| 
 | |
| template<>
 | |
| inline std::string path::generic_string< std::string >(codecvt_type const& cvt) const
 | |
| {
 | |
|     return generic_string(cvt);
 | |
| }
 | |
| 
 | |
| template<>
 | |
| inline std::wstring path::generic_string< std::wstring >(codecvt_type const& cvt) const
 | |
| {
 | |
|     return generic_wstring(cvt);
 | |
| }
 | |
| 
 | |
| //--------------------------------------------------------------------------------------//
 | |
| //                     path_traits convert function implementations                     //
 | |
| //                        requiring path::codecvt() be visable                          //
 | |
| //--------------------------------------------------------------------------------------//
 | |
| 
 | |
| namespace path_traits { //  without codecvt
 | |
| 
 | |
| inline void convert(const char* from,
 | |
|                     const char* from_end, // 0 for null terminated MBCS
 | |
|                     std::wstring& to)
 | |
| {
 | |
|     convert(from, from_end, to, path::codecvt());
 | |
| }
 | |
| 
 | |
| inline void convert(const wchar_t* from,
 | |
|                     const wchar_t* from_end, // 0 for null terminated MBCS
 | |
|                     std::string& to)
 | |
| {
 | |
|     convert(from, from_end, to, path::codecvt());
 | |
| }
 | |
| 
 | |
| inline void convert(const char* from, std::wstring& to)
 | |
| {
 | |
|     BOOST_ASSERT(!!from);
 | |
|     convert(from, 0, to, path::codecvt());
 | |
| }
 | |
| 
 | |
| inline void convert(const wchar_t* from, std::string& to)
 | |
| {
 | |
|     BOOST_ASSERT(!!from);
 | |
|     convert(from, 0, to, path::codecvt());
 | |
| }
 | |
| 
 | |
| } // namespace path_traits
 | |
| } // namespace filesystem
 | |
| } // namespace boost
 | |
| 
 | |
| //----------------------------------------------------------------------------//
 | |
| 
 | |
| #include <boost/filesystem/detail/footer.hpp>
 | |
| 
 | |
| #endif // BOOST_FILESYSTEM_PATH_HPP
 |