759 lines
29 KiB
C++
759 lines
29 KiB
C++
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// filesystem path.hpp ---------------------------------------------------------------//
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// Copyright Beman Dawes 2002-2005, 2009
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// Copyright Vladimir Prus 2002
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// Distributed under the Boost Software License, Version 1.0.
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// See http://www.boost.org/LICENSE_1_0.txt
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// Library home page: http://www.boost.org/libs/filesystem
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// path::stem(), extension(), and replace_extension() are based on
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// basename(), extension(), and change_extension() from the original
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// filesystem/convenience.hpp header by Vladimir Prus.
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#ifndef BOOST_FILESYSTEM_PATH_HPP
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#define BOOST_FILESYSTEM_PATH_HPP
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#include <boost/config.hpp>
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# if defined( BOOST_NO_STD_WSTRING )
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# error Configuration not supported: Boost.Filesystem V3 and later requires std::wstring support
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# endif
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#include <boost/filesystem/config.hpp>
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#include <boost/filesystem/path_traits.hpp> // includes <cwchar>
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#include <boost/system/error_code.hpp>
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#include <boost/system/system_error.hpp>
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#include <boost/iterator/iterator_facade.hpp>
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#include <boost/shared_ptr.hpp>
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#include <boost/io/detail/quoted_manip.hpp>
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#include <boost/static_assert.hpp>
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#include <boost/functional/hash_fwd.hpp>
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#include <boost/type_traits/is_integral.hpp>
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#include <string>
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#include <iterator>
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#include <cstring>
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#include <iosfwd>
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#include <stdexcept>
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#include <cassert>
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#include <locale>
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#include <algorithm>
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#include <boost/config/abi_prefix.hpp> // must be the last #include
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namespace boost
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{
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namespace filesystem
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{
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//------------------------------------------------------------------------------------//
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// //
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// class path //
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// //
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//------------------------------------------------------------------------------------//
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class BOOST_FILESYSTEM_DECL path
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{
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public:
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// value_type is the character type used by the operating system API to
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// represent paths.
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# ifdef BOOST_WINDOWS_API
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typedef wchar_t value_type;
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BOOST_STATIC_CONSTEXPR value_type preferred_separator = L'\\';
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# else
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typedef char value_type;
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BOOST_STATIC_CONSTEXPR value_type preferred_separator = '/';
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# endif
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typedef std::basic_string<value_type> string_type;
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typedef std::codecvt<wchar_t, char,
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std::mbstate_t> codecvt_type;
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// ----- character encoding conversions -----
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// Following the principle of least astonishment, path input arguments
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// passed to or obtained from the operating system via objects of
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// class path behave as if they were directly passed to or
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// obtained from the O/S API, unless conversion is explicitly requested.
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//
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// POSIX specfies that path strings are passed unchanged to and from the
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// API. Note that this is different from the POSIX command line utilities,
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// which convert according to a locale.
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//
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// Thus for POSIX, char strings do not undergo conversion. wchar_t strings
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// are converted to/from char using the path locale or, if a conversion
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// argument is given, using a conversion object modeled on
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// std::wstring_convert.
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//
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// The path locale, which is global to the thread, can be changed by the
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// imbue() function. It is initialized to an implementation defined locale.
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//
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// For Windows, wchar_t strings do not undergo conversion. char strings
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// are converted using the "ANSI" or "OEM" code pages, as determined by
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// the AreFileApisANSI() function, or, if a conversion argument is given,
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// using a conversion object modeled on std::wstring_convert.
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//
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// See m_pathname comments for further important rationale.
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// TODO: rules needed for operating systems that use / or .
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// differently, or format directory paths differently from file paths.
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//
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// **********************************************************************************
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//
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// More work needed: How to handle an operating system that may have
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// slash characters or dot characters in valid filenames, either because
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// it doesn't follow the POSIX standard, or because it allows MBCS
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// filename encodings that may contain slash or dot characters. For
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// example, ISO/IEC 2022 (JIS) encoding which allows switching to
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// JIS x0208-1983 encoding. A valid filename in this set of encodings is
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// 0x1B 0x24 0x42 [switch to X0208-1983] 0x24 0x2F [U+304F Kiragana letter KU]
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// ^^^^
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// Note that 0x2F is the ASCII slash character
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//
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// **********************************************************************************
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// Supported source arguments: half-open iterator range, container, c-array,
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// and single pointer to null terminated string.
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// All source arguments except pointers to null terminated byte strings support
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// multi-byte character strings which may have embedded nulls. Embedded null
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// support is required for some Asian languages on Windows.
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// [defaults] "const codecvt_type& cvt=codecvt()" default arguments are not used
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// because some compilers, such as Microsoft prior to VC++ 10, do not handle defaults
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// correctly in templates.
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// ----- constructors -----
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path(){}
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path(const path& p) : m_pathname(p.m_pathname) {}
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template <class Source>
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path(Source const& source,
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typename boost::enable_if<path_traits::is_pathable<
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typename boost::decay<Source>::type> >::type* =0)
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{
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path_traits::dispatch(source, m_pathname, codecvt());
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}
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// Overloads for the operating system API's native character type. Rationale:
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// - Avoids use of codecvt() for native value_type strings. This limits the
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// impact of locale("") initialization failures on POSIX systems to programs
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// that actually depend on locale(""). It further ensures that exceptions thrown
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// as a result of such failues occur after main() has started, so can be caught.
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// This is a partial resolution of tickets 4688, 5100, and 5289.
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// - A slight optimization for a common use case, particularly on POSIX since
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// value_type is char and that is the most common useage.
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path(const value_type* s) : m_pathname(s) {}
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path(const std::basic_string<value_type>& s) : m_pathname(s) {}
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template <class Source>
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path(Source const& source, const codecvt_type& cvt)
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// see [defaults] note above explaining why codecvt() default arguments are not used
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{
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path_traits::dispatch(source, m_pathname, cvt);
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}
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template <class InputIterator>
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path(InputIterator begin, InputIterator end)
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{
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if (begin != end)
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{
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std::basic_string<typename std::iterator_traits<InputIterator>::value_type>
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s(begin, end);
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path_traits::convert(s.c_str(), s.c_str()+s.size(), m_pathname, codecvt());
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}
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}
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template <class InputIterator>
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path(InputIterator begin, InputIterator end, const codecvt_type& cvt)
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{
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if (begin != end)
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{
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std::basic_string<typename std::iterator_traits<InputIterator>::value_type>
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s(begin, end);
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path_traits::convert(s.c_str(), s.c_str()+s.size(), m_pathname, cvt);
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}
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}
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// ----- assignments -----
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path& operator=(const path& p)
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{
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m_pathname = p.m_pathname;
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return *this;
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}
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path& operator=(const value_type* ptr) // required in case ptr overlaps *this
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{
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m_pathname = ptr;
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return *this;
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}
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template <class Source>
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typename boost::enable_if<path_traits::is_pathable<
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typename boost::decay<Source>::type>, path&>::type
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operator=(Source const& source)
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{
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m_pathname.clear();
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path_traits::dispatch(source, m_pathname, codecvt());
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return *this;
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}
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path& assign(const value_type* ptr, const codecvt_type&) // required in case ptr overlaps *this
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{
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m_pathname = ptr;
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return *this;
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}
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template <class Source>
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path& assign(Source const& source, const codecvt_type& cvt)
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{
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m_pathname.clear();
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path_traits::dispatch(source, m_pathname, cvt);
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return *this;
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}
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template <class InputIterator>
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path& assign(InputIterator begin, InputIterator end)
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{
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return assign(begin, end, codecvt());
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}
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template <class InputIterator>
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path& assign(InputIterator begin, InputIterator end, const codecvt_type& cvt)
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{
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m_pathname.clear();
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if (begin != end)
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{
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std::basic_string<typename std::iterator_traits<InputIterator>::value_type>
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s(begin, end);
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path_traits::convert(s.c_str(), s.c_str()+s.size(), m_pathname, cvt);
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}
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return *this;
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}
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// ----- concatenation -----
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path& operator+=(const path& p) {m_pathname += p.m_pathname; return *this;}
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path& operator+=(const string_type& s) {m_pathname += s; return *this;}
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path& operator+=(const value_type* ptr) {m_pathname += ptr; return *this;}
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path& operator+=(value_type c) {m_pathname += c; return *this;}
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template <class Source>
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typename boost::enable_if<path_traits::is_pathable<
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typename boost::decay<Source>::type>, path&>::type
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operator+=(Source const& source)
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{
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return concat(source, codecvt());
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}
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template <class CharT>
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typename boost::enable_if<is_integral<CharT>, path&>::type
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operator+=(CharT c)
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{
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CharT tmp[2];
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tmp[0] = c;
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tmp[1] = 0;
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return concat(tmp, codecvt());
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}
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template <class Source>
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path& concat(Source const& source, const codecvt_type& cvt)
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{
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path_traits::dispatch(source, m_pathname, cvt);
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return *this;
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}
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template <class InputIterator>
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path& concat(InputIterator begin, InputIterator end)
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{
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return concat(begin, end, codecvt());
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}
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template <class InputIterator>
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path& concat(InputIterator begin, InputIterator end, const codecvt_type& cvt)
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{
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if (begin == end)
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return *this;
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std::basic_string<typename std::iterator_traits<InputIterator>::value_type>
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s(begin, end);
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path_traits::convert(s.c_str(), s.c_str()+s.size(), m_pathname, cvt);
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return *this;
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}
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// ----- appends -----
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// if a separator is added, it is the preferred separator for the platform;
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// slash for POSIX, backslash for Windows
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path& operator/=(const path& p);
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path& operator/=(const value_type* ptr);
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template <class Source>
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typename boost::enable_if<path_traits::is_pathable<
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typename boost::decay<Source>::type>, path&>::type
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operator/=(Source const& source)
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{
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return append(source, codecvt());
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}
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path& append(const value_type* ptr, const codecvt_type&) // required in case ptr overlaps *this
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{
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this->operator/=(ptr);
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return *this;
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}
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template <class Source>
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path& append(Source const& source, const codecvt_type& cvt);
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template <class InputIterator>
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path& append(InputIterator begin, InputIterator end)
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{
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return append(begin, end, codecvt());
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}
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template <class InputIterator>
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path& append(InputIterator begin, InputIterator end, const codecvt_type& cvt);
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// ----- modifiers -----
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void clear() { m_pathname.clear(); }
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path& make_preferred()
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# ifdef BOOST_POSIX_API
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{ return *this; } // POSIX no effect
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# else // BOOST_WINDOWS_API
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; // change slashes to backslashes
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# endif
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path& remove_filename();
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path& replace_extension(const path& new_extension = path());
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void swap(path& rhs) { m_pathname.swap(rhs.m_pathname); }
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// ----- observers -----
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// For operating systems that format file paths differently than directory
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// paths, return values from observers are formatted as file names unless there
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// is a trailing separator, in which case returns are formatted as directory
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// paths. POSIX and Windows make no such distinction.
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// Implementations are permitted to return const values or const references.
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// The string or path returned by an observer are specified as being formatted
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// as "native" or "generic".
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//
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// For POSIX, these are all the same format; slashes and backslashes are as input and
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// are not modified.
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//
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// For Windows, native: as input; slashes and backslashes are not modified;
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// this is the format of the internally stored string.
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// generic: backslashes are converted to slashes
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// ----- native format observers -----
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const string_type& native() const { return m_pathname; } // Throws: nothing
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const value_type* c_str() const { return m_pathname.c_str(); } // Throws: nothing
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template <class String>
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String string() const;
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template <class String>
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String string(const codecvt_type& cvt) const;
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# ifdef BOOST_WINDOWS_API
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const std::string string() const { return string(codecvt()); }
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const std::string string(const codecvt_type& cvt) const
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{
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std::string tmp;
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if (!m_pathname.empty())
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path_traits::convert(&*m_pathname.begin(), &*m_pathname.begin()+m_pathname.size(),
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tmp, cvt);
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||
|
|
return tmp;
|
||
|
|
}
|
||
|
|
|
||
|
|
// string_type is std::wstring, so there is no conversion
|
||
|
|
const std::wstring& wstring() const { return m_pathname; }
|
||
|
|
const std::wstring& wstring(const codecvt_type&) const { return m_pathname; }
|
||
|
|
|
||
|
|
# else // BOOST_POSIX_API
|
||
|
|
// string_type is std::string, so there is no conversion
|
||
|
|
const std::string& string() const { return m_pathname; }
|
||
|
|
const std::string& string(const codecvt_type&) const { return m_pathname; }
|
||
|
|
|
||
|
|
const std::wstring wstring() const { return wstring(codecvt()); }
|
||
|
|
const std::wstring wstring(const codecvt_type& cvt) const
|
||
|
|
{
|
||
|
|
std::wstring tmp;
|
||
|
|
if (!m_pathname.empty())
|
||
|
|
path_traits::convert(&*m_pathname.begin(), &*m_pathname.begin()+m_pathname.size(),
|
||
|
|
tmp, cvt);
|
||
|
|
return tmp;
|
||
|
|
}
|
||
|
|
|
||
|
|
# endif
|
||
|
|
|
||
|
|
// ----- generic format observers -----
|
||
|
|
|
||
|
|
template <class String>
|
||
|
|
String generic_string() const;
|
||
|
|
|
||
|
|
template <class String>
|
||
|
|
String generic_string(const codecvt_type& cvt) const;
|
||
|
|
|
||
|
|
# ifdef BOOST_WINDOWS_API
|
||
|
|
const std::string generic_string() const { return generic_string(codecvt()); }
|
||
|
|
const std::string generic_string(const codecvt_type& cvt) const;
|
||
|
|
const std::wstring generic_wstring() const;
|
||
|
|
const std::wstring generic_wstring(const codecvt_type&) const { return generic_wstring(); };
|
||
|
|
|
||
|
|
# else // BOOST_POSIX_API
|
||
|
|
// On POSIX-like systems, the generic format is the same as the native format
|
||
|
|
const std::string& generic_string() const { return m_pathname; }
|
||
|
|
const std::string& generic_string(const codecvt_type&) const { return m_pathname; }
|
||
|
|
const std::wstring generic_wstring() const { return wstring(codecvt()); }
|
||
|
|
const std::wstring generic_wstring(const codecvt_type& cvt) const { return wstring(cvt); }
|
||
|
|
|
||
|
|
# endif
|
||
|
|
|
||
|
|
// ----- compare -----
|
||
|
|
|
||
|
|
int compare(const path& p) const BOOST_NOEXCEPT; // generic, lexicographical
|
||
|
|
int compare(const std::string& s) const { return compare(path(s)); }
|
||
|
|
int compare(const value_type* s) const { return compare(path(s)); }
|
||
|
|
|
||
|
|
// ----- decomposition -----
|
||
|
|
|
||
|
|
path root_path() const;
|
||
|
|
path root_name() const; // returns 0 or 1 element path
|
||
|
|
// even on POSIX, root_name() is non-empty() for network paths
|
||
|
|
path root_directory() const; // returns 0 or 1 element path
|
||
|
|
path relative_path() const;
|
||
|
|
path parent_path() const;
|
||
|
|
path filename() const; // returns 0 or 1 element path
|
||
|
|
path stem() const; // returns 0 or 1 element path
|
||
|
|
path extension() const; // returns 0 or 1 element path
|
||
|
|
|
||
|
|
// ----- query -----
|
||
|
|
|
||
|
|
bool empty() const { return m_pathname.empty(); } // name consistent with std containers
|
||
|
|
bool has_root_path() const { return has_root_directory() || has_root_name(); }
|
||
|
|
bool has_root_name() const { return !root_name().empty(); }
|
||
|
|
bool has_root_directory() const { return !root_directory().empty(); }
|
||
|
|
bool has_relative_path() const { return !relative_path().empty(); }
|
||
|
|
bool has_parent_path() const { return !parent_path().empty(); }
|
||
|
|
bool has_filename() const { return !m_pathname.empty(); }
|
||
|
|
bool has_stem() const { return !stem().empty(); }
|
||
|
|
bool has_extension() const { return !extension().empty(); }
|
||
|
|
bool is_absolute() const
|
||
|
|
{
|
||
|
|
# ifdef BOOST_WINDOWS_API
|
||
|
|
return has_root_name() && has_root_directory();
|
||
|
|
# else
|
||
|
|
return has_root_directory();
|
||
|
|
# endif
|
||
|
|
}
|
||
|
|
bool is_relative() const { return !is_absolute(); }
|
||
|
|
|
||
|
|
// ----- iterators -----
|
||
|
|
|
||
|
|
class iterator;
|
||
|
|
typedef iterator const_iterator;
|
||
|
|
|
||
|
|
iterator begin() const;
|
||
|
|
iterator end() const;
|
||
|
|
|
||
|
|
// ----- static member functions -----
|
||
|
|
|
||
|
|
static std::locale imbue(const std::locale& loc);
|
||
|
|
static const codecvt_type& codecvt();
|
||
|
|
|
||
|
|
// ----- deprecated functions -----
|
||
|
|
|
||
|
|
# if defined(BOOST_FILESYSTEM_DEPRECATED) && defined(BOOST_FILESYSTEM_NO_DEPRECATED)
|
||
|
|
# error both BOOST_FILESYSTEM_DEPRECATED and BOOST_FILESYSTEM_NO_DEPRECATED are defined
|
||
|
|
# endif
|
||
|
|
|
||
|
|
# if !defined(BOOST_FILESYSTEM_NO_DEPRECATED)
|
||
|
|
// recently deprecated functions supplied by default
|
||
|
|
path& normalize() { return m_normalize(); }
|
||
|
|
path& remove_leaf() { return remove_filename(); }
|
||
|
|
path leaf() const { return filename(); }
|
||
|
|
path branch_path() const { return parent_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
|
||
|
|
const std::string file_string() const { return string(); }
|
||
|
|
const std::string directory_string() const { return string(); }
|
||
|
|
const std::string native_file_string() const { return string(); }
|
||
|
|
const std::string native_directory_string() const { return string(); }
|
||
|
|
const string_type external_file_string() const { return native(); }
|
||
|
|
const string_type external_directory_string() const { return native(); }
|
||
|
|
|
||
|
|
// older functions no longer supported
|
||
|
|
//typedef bool (*name_check)(const std::string & name);
|
||
|
|
//basic_path(const string_type& str, name_check) { operator/=(str); }
|
||
|
|
//basic_path(const typename string_type::value_type* s, name_check)
|
||
|
|
// { operator/=(s);}
|
||
|
|
//static bool default_name_check_writable() { return false; }
|
||
|
|
//static void default_name_check(name_check) {}
|
||
|
|
//static name_check default_name_check() { return 0; }
|
||
|
|
//basic_path& canonize();
|
||
|
|
# endif
|
||
|
|
|
||
|
|
//--------------------------------------------------------------------------------------//
|
||
|
|
// class path private members //
|
||
|
|
//--------------------------------------------------------------------------------------//
|
||
|
|
|
||
|
|
private:
|
||
|
|
# if defined(_MSC_VER)
|
||
|
|
# pragma warning(push) // Save warning settings
|
||
|
|
# pragma warning(disable : 4251) // disable warning: class 'std::basic_string<_Elem,_Traits,_Ax>'
|
||
|
|
# endif // needs to have dll-interface...
|
||
|
|
/*
|
||
|
|
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
|
||
|
|
# if defined(_MSC_VER)
|
||
|
|
# pragma warning(pop) // restore warning settings.
|
||
|
|
# endif
|
||
|
|
|
||
|
|
string_type::size_type m_append_separator_if_needed();
|
||
|
|
// 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.
|
||
|
|
|
||
|
|
void m_erase_redundant_separator(string_type::size_type sep_pos);
|
||
|
|
string_type::size_type m_parent_path_end() const;
|
||
|
|
|
||
|
|
path& m_normalize();
|
||
|
|
|
||
|
|
// Was qualified; como433beta8 reports:
|
||
|
|
// warning #427-D: qualified name is not allowed in member declaration
|
||
|
|
friend class iterator;
|
||
|
|
friend bool operator<(const path& lhs, const path& rhs);
|
||
|
|
|
||
|
|
// see path::iterator::increment/decrement comment below
|
||
|
|
static void m_path_iterator_increment(path::iterator & it);
|
||
|
|
static void m_path_iterator_decrement(path::iterator & it);
|
||
|
|
|
||
|
|
}; // class path
|
||
|
|
|
||
|
|
namespace detail
|
||
|
|
{
|
||
|
|
BOOST_FILESYSTEM_DECL
|
||
|
|
int lex_compare(path::iterator first1, path::iterator last1,
|
||
|
|
path::iterator first2, path::iterator last2);
|
||
|
|
}
|
||
|
|
|
||
|
|
# ifndef BOOST_FILESYSTEM_NO_DEPRECATED
|
||
|
|
typedef path wpath;
|
||
|
|
# endif
|
||
|
|
|
||
|
|
//------------------------------------------------------------------------------------//
|
||
|
|
// class path::iterator //
|
||
|
|
//------------------------------------------------------------------------------------//
|
||
|
|
|
||
|
|
class path::iterator
|
||
|
|
: public boost::iterator_facade<
|
||
|
|
path::iterator,
|
||
|
|
path const,
|
||
|
|
boost::bidirectional_traversal_tag >
|
||
|
|
{
|
||
|
|
private:
|
||
|
|
friend class boost::iterator_core_access;
|
||
|
|
friend class boost::filesystem::path;
|
||
|
|
friend void m_path_iterator_increment(path::iterator & it);
|
||
|
|
friend void m_path_iterator_decrement(path::iterator & it);
|
||
|
|
|
||
|
|
const path& dereference() const { return m_element; }
|
||
|
|
|
||
|
|
bool equal(const iterator & rhs) const
|
||
|
|
{
|
||
|
|
return m_path_ptr == rhs.m_path_ptr && m_pos == rhs.m_pos;
|
||
|
|
}
|
||
|
|
|
||
|
|
// iterator_facade derived classes don't seem to like implementations in
|
||
|
|
// separate translation unit dll's, so forward to class path static members
|
||
|
|
void increment() { m_path_iterator_increment(*this); }
|
||
|
|
void decrement() { m_path_iterator_decrement(*this); }
|
||
|
|
|
||
|
|
path m_element; // current element
|
||
|
|
const path* m_path_ptr; // path being iterated over
|
||
|
|
string_type::size_type m_pos; // 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()
|
||
|
|
}; // path::iterator
|
||
|
|
|
||
|
|
//------------------------------------------------------------------------------------//
|
||
|
|
// //
|
||
|
|
// non-member functions //
|
||
|
|
// //
|
||
|
|
//------------------------------------------------------------------------------------//
|
||
|
|
|
||
|
|
// std::lexicographical_compare would infinately 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 detail::lex_compare(first1, last1, first2, last2) < 0; }
|
||
|
|
|
||
|
|
inline bool operator==(const path& lhs, const path& rhs) {return lhs.compare(rhs) == 0;}
|
||
|
|
inline bool operator==(const path& lhs, const path::string_type& rhs) {return lhs.compare(rhs) == 0;}
|
||
|
|
inline bool operator==(const path::string_type& lhs, const path& rhs) {return rhs.compare(lhs) == 0;}
|
||
|
|
inline bool operator==(const path& lhs, const path::value_type* rhs) {return lhs.compare(rhs) == 0;}
|
||
|
|
inline bool operator==(const path::value_type* lhs, const path& rhs) {return rhs.compare(lhs) == 0;}
|
||
|
|
|
||
|
|
inline bool operator!=(const path& lhs, const path& rhs) {return lhs.compare(rhs) != 0;}
|
||
|
|
inline bool operator!=(const path& lhs, const path::string_type& rhs) {return lhs.compare(rhs) != 0;}
|
||
|
|
inline bool operator!=(const path::string_type& lhs, const path& rhs) {return rhs.compare(lhs) != 0;}
|
||
|
|
inline bool operator!=(const path& lhs, const path::value_type* rhs) {return lhs.compare(rhs) != 0;}
|
||
|
|
inline bool operator!=(const path::value_type* lhs, const path& rhs) {return rhs.compare(lhs) != 0;}
|
||
|
|
|
||
|
|
// TODO: why do == and != have additional overloads, but the others don't?
|
||
|
|
|
||
|
|
inline bool operator<(const path& lhs, const path& rhs) {return lhs.compare(rhs) < 0;}
|
||
|
|
inline bool operator<=(const path& lhs, const path& rhs) {return !(rhs < lhs);}
|
||
|
|
inline bool operator> (const path& lhs, const path& rhs) {return rhs < lhs;}
|
||
|
|
inline bool operator>=(const path& lhs, const path& rhs) {return !(lhs < rhs);}
|
||
|
|
|
||
|
|
inline std::size_t hash_value(const path& x)
|
||
|
|
{
|
||
|
|
# ifdef BOOST_WINDOWS_API
|
||
|
|
std::size_t seed = 0;
|
||
|
|
for(const path::value_type* it = x.c_str(); *it; ++it)
|
||
|
|
hash_combine(seed, *it == '/' ? L'\\' : *it);
|
||
|
|
return seed;
|
||
|
|
# else // BOOST_POSIX_API
|
||
|
|
return hash_range(x.native().begin(), x.native().end());
|
||
|
|
# endif
|
||
|
|
}
|
||
|
|
|
||
|
|
inline void swap(path& lhs, path& rhs) { lhs.swap(rhs); }
|
||
|
|
|
||
|
|
inline path operator/(const path& lhs, const path& rhs) { return path(lhs) /= rhs; }
|
||
|
|
|
||
|
|
// 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, const path& 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(const std::string & name);
|
||
|
|
BOOST_FILESYSTEM_DECL bool windows_name(const std::string & name);
|
||
|
|
BOOST_FILESYSTEM_DECL bool portable_name(const std::string & name);
|
||
|
|
BOOST_FILESYSTEM_DECL bool portable_directory_name(const std::string & name);
|
||
|
|
BOOST_FILESYSTEM_DECL bool portable_file_name(const std::string & name);
|
||
|
|
BOOST_FILESYSTEM_DECL bool native(const std::string & name);
|
||
|
|
|
||
|
|
//--------------------------------------------------------------------------------------//
|
||
|
|
// class path member template implementation //
|
||
|
|
//--------------------------------------------------------------------------------------//
|
||
|
|
|
||
|
|
template <class InputIterator>
|
||
|
|
path& path::append(InputIterator begin, InputIterator end, const codecvt_type& cvt)
|
||
|
|
{
|
||
|
|
if (begin == end)
|
||
|
|
return *this;
|
||
|
|
string_type::size_type sep_pos(m_append_separator_if_needed());
|
||
|
|
std::basic_string<typename std::iterator_traits<InputIterator>::value_type>
|
||
|
|
s(begin, end);
|
||
|
|
path_traits::convert(s.c_str(), s.c_str()+s.size(), m_pathname, cvt);
|
||
|
|
if (sep_pos)
|
||
|
|
m_erase_redundant_separator(sep_pos);
|
||
|
|
return *this;
|
||
|
|
}
|
||
|
|
|
||
|
|
template <class Source>
|
||
|
|
path& path::append(Source const& source, const codecvt_type& cvt)
|
||
|
|
{
|
||
|
|
if (path_traits::empty(source))
|
||
|
|
return *this;
|
||
|
|
string_type::size_type sep_pos(m_append_separator_if_needed());
|
||
|
|
path_traits::dispatch(source, m_pathname, cvt);
|
||
|
|
if (sep_pos)
|
||
|
|
m_erase_redundant_separator(sep_pos);
|
||
|
|
return *this;
|
||
|
|
}
|
||
|
|
|
||
|
|
//--------------------------------------------------------------------------------------//
|
||
|
|
// class path member template specializations //
|
||
|
|
//--------------------------------------------------------------------------------------//
|
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||
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template <> inline
|
||
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std::string path::string<std::string>() const
|
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{ return string(); }
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||
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||
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template <> inline
|
||
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|
std::wstring path::string<std::wstring>() const
|
||
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{ return wstring(); }
|
||
|
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||
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|
template <> inline
|
||
|
|
std::string path::string<std::string>(const codecvt_type& cvt) const
|
||
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|
{ 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>(const codecvt_type& cvt) const
|
||
|
|
{ return generic_string(cvt); }
|
||
|
|
|
||
|
|
template <> inline
|
||
|
|
std::wstring path::generic_string<std::wstring>(const codecvt_type& cvt) const
|
||
|
|
{ return generic_wstring(cvt); }
|
||
|
|
|
||
|
|
|
||
|
|
} // namespace filesystem
|
||
|
|
} // namespace boost
|
||
|
|
|
||
|
|
//----------------------------------------------------------------------------//
|
||
|
|
|
||
|
|
#include <boost/config/abi_suffix.hpp> // pops abi_prefix.hpp pragmas
|
||
|
|
|
||
|
|
#endif // BOOST_FILESYSTEM_PATH_HPP
|