| 1 | // portability.cpp -------------------------------------------------------------------// |
|---|---|
| 2 | |
| 3 | // Copyright 2002-2005 Beman Dawes |
| 4 | // Use, modification, and distribution is subject to the Boost Software |
| 5 | // License, Version 1.0. (See accompanying file LICENSE_1_0.txt or copy |
| 6 | // at http://www.boost.org/LICENSE_1_0.txt) |
| 7 | |
| 8 | // See library home page at http://www.boost.org/libs/filesystem |
| 9 | |
| 10 | //--------------------------------------------------------------------------------------// |
| 11 | |
| 12 | #include "platform_config.hpp" |
| 13 | |
| 14 | #include <boost/filesystem/config.hpp> |
| 15 | #include <boost/filesystem/path.hpp> |
| 16 | |
| 17 | #include <cstring> // SGI MIPSpro compilers need this |
| 18 | #include <string> |
| 19 | |
| 20 | #include <boost/filesystem/detail/header.hpp> // must be the last #include |
| 21 | |
| 22 | namespace boost { |
| 23 | namespace filesystem { |
| 24 | |
| 25 | namespace { |
| 26 | |
| 27 | BOOST_CONSTEXPR_OR_CONST char windows_invalid_chars[] = |
| 28 | "\x01\x02\x03\x04\x05\x06\x07\x08\x09\x0A\x0B\x0C\x0D\x0E\x0F" |
| 29 | "\x10\x11\x12\x13\x14\x15\x16\x17\x18\x19\x1A\x1B\x1C\x1D\x1E\x1F" |
| 30 | "<>:\"/\\|"; |
| 31 | |
| 32 | BOOST_CONSTEXPR_OR_CONST char posix_valid_chars[] = |
| 33 | "ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789._-"; |
| 34 | |
| 35 | } // unnamed namespace |
| 36 | |
| 37 | // name_check functions ----------------------------------------------// |
| 38 | |
| 39 | #ifdef BOOST_WINDOWS |
| 40 | BOOST_FILESYSTEM_DECL bool native(std::string const& name) |
| 41 | { |
| 42 | return windows_name(name); |
| 43 | } |
| 44 | #else |
| 45 | BOOST_FILESYSTEM_DECL bool native(std::string const& name) |
| 46 | { |
| 47 | return !name.empty() && name[0] != ' ' && name.find(c: '/') == std::string::npos; |
| 48 | } |
| 49 | #endif |
| 50 | |
| 51 | BOOST_FILESYSTEM_DECL bool portable_posix_name(std::string const& name) |
| 52 | { |
| 53 | return !name.empty() && name.find_first_not_of(s: posix_valid_chars, pos: 0, n: sizeof(posix_valid_chars) - 1) == std::string::npos; |
| 54 | } |
| 55 | |
| 56 | BOOST_FILESYSTEM_DECL bool windows_name(std::string const& name) |
| 57 | { |
| 58 | // note that the terminating '\0' is part of the string - thus the size below |
| 59 | // is sizeof(windows_invalid_chars) rather than sizeof(windows_invalid_chars)-1. |
| 60 | return !name.empty() && name[0] != ' ' && name.find_first_of(s: windows_invalid_chars, pos: 0, n: sizeof(windows_invalid_chars)) == std::string::npos |
| 61 | && *(name.end() - 1) != ' ' && (*(name.end() - 1) != '.' || name.size() == 1 || name == ".."); |
| 62 | } |
| 63 | |
| 64 | BOOST_FILESYSTEM_DECL bool portable_name(std::string const& name) |
| 65 | { |
| 66 | return !name.empty() && (name == "."|| name == ".."|| (windows_name(name) && portable_posix_name(name) && name[0] != '.' && name[0] != '-')); |
| 67 | } |
| 68 | |
| 69 | BOOST_FILESYSTEM_DECL bool portable_directory_name(std::string const& name) |
| 70 | { |
| 71 | return name == "."|| name == ".."|| (portable_name(name) && name.find(c: '.') == std::string::npos); |
| 72 | } |
| 73 | |
| 74 | BOOST_FILESYSTEM_DECL bool portable_file_name(std::string const& name) |
| 75 | { |
| 76 | std::string::size_type pos; |
| 77 | return portable_name(name) && name != "."&& name != ".."&& ((pos = name.find(c: '.')) == std::string::npos || (name.find(c: '.', pos: pos + 1) == std::string::npos && (pos + 5) > name.size())); |
| 78 | } |
| 79 | |
| 80 | } // namespace filesystem |
| 81 | } // namespace boost |
| 82 | |
| 83 | #include <boost/filesystem/detail/footer.hpp> |
| 84 |