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Diffstat (limited to 'contrib/src/boost/uuid/string_generator.hpp')
| -rw-r--r-- | contrib/src/boost/uuid/string_generator.hpp | 185 |
1 files changed, 0 insertions, 185 deletions
diff --git a/contrib/src/boost/uuid/string_generator.hpp b/contrib/src/boost/uuid/string_generator.hpp deleted file mode 100644 index 538ebe8..0000000 --- a/contrib/src/boost/uuid/string_generator.hpp +++ /dev/null @@ -1,185 +0,0 @@ -// Boost string_generator.hpp header file ----------------------------------------------// - -// Copyright 2010 Andy Tompkins. -// Distributed under the Boost Software License, Version 1.0. (See -// accompanying file LICENSE_1_0.txt or copy at -// http://www.boost.org/LICENSE_1_0.txt) - -#ifndef BOOST_UUID_STRING_GENERATOR_HPP -#define BOOST_UUID_STRING_GENERATOR_HPP - -#include <boost/uuid/uuid.hpp> -#include <string> -#include <cstring> // for strlen, wcslen -#include <iterator> -#include <algorithm> // for find -#include <stdexcept> -#include <boost/throw_exception.hpp> - -#ifdef BOOST_NO_STDC_NAMESPACE -namespace std { - using ::strlen; - using ::wcslen; -} //namespace std -#endif //BOOST_NO_STDC_NAMESPACE - -namespace boost { -namespace uuids { - -// generate a uuid from a string -// lexical_cast works fine using uuid_io.hpp -// but this generator should accept more forms -// and be more efficient -// would like to accept the following forms: -// 0123456789abcdef0123456789abcdef -// 01234567-89ab-cdef-0123456789abcdef -// {01234567-89ab-cdef-0123456789abcdef} -// {0123456789abcdef0123456789abcdef} -// others? -struct string_generator { - typedef uuid result_type; - - template <typename ch, typename char_traits, typename alloc> - uuid operator()(std::basic_string<ch, char_traits, alloc> const& s) const { - return operator()(s.begin(), s.end()); - } - - uuid operator()(char const*const s) const { - return operator()(s, s+std::strlen(s)); - } - - uuid operator()(wchar_t const*const s) const { - return operator()(s, s+std::wcslen(s)); - } - - template <typename CharIterator> - uuid operator()(CharIterator begin, CharIterator end) const - { - typedef typename std::iterator_traits<CharIterator>::value_type char_type; - - // check open brace - char_type c = get_next_char(begin, end); - bool has_open_brace = is_open_brace(c); - char_type open_brace_char = c; - if (has_open_brace) { - c = get_next_char(begin, end); - } - - bool has_dashes = false; - - uuid u; - int i=0; - for (uuid::iterator it_byte=u.begin(); it_byte!=u.end(); ++it_byte, ++i) { - if (it_byte != u.begin()) { - c = get_next_char(begin, end); - } - - if (i == 4) { - has_dashes = is_dash(c); - if (has_dashes) { - c = get_next_char(begin, end); - } - } - - if (has_dashes) { - if (i == 6 || i == 8 || i == 10) { - if (is_dash(c)) { - c = get_next_char(begin, end); - } else { - throw_invalid(); - } - } - } - - *it_byte = get_value(c); - - c = get_next_char(begin, end); - *it_byte <<= 4; - *it_byte |= get_value(c); - } - - // check close brace - if (has_open_brace) { - c = get_next_char(begin, end); - check_close_brace(c, open_brace_char); - } - - return u; - } - -private: - template <typename CharIterator> - typename std::iterator_traits<CharIterator>::value_type - get_next_char(CharIterator& begin, CharIterator end) const { - if (begin == end) { - throw_invalid(); - } - return *begin++; - } - - unsigned char get_value(char c) const { - static char const*const digits_begin = "0123456789abcdefABCDEF"; - static char const*const digits_end = digits_begin + 22; - - static unsigned char const values[] = - { 0,1,2,3,4,5,6,7,8,9,10,11,12,13,14,15,10,11,12,13,14,15 - , static_cast<unsigned char>(-1) }; - - char const* d = std::find(digits_begin, digits_end, c); - return values[d - digits_begin]; - } - - unsigned char get_value(wchar_t c) const { - static wchar_t const*const digits_begin = L"0123456789abcdefABCDEF"; - static wchar_t const*const digits_end = digits_begin + 22; - - static unsigned char const values[] = - { 0,1,2,3,4,5,6,7,8,9,10,11,12,13,14,15,10,11,12,13,14,15 - , static_cast<unsigned char>(-1) }; - - wchar_t const* d = std::find(digits_begin, digits_end, c); - return values[d - digits_begin]; - } - - bool is_dash(char c) const { - return c == '-'; - } - - bool is_dash(wchar_t c) const { - return c == L'-'; - } - - // return closing brace - bool is_open_brace(char c) const { - return (c == '{'); - } - - bool is_open_brace(wchar_t c) const { - return (c == L'{'); - } - - void check_close_brace(char c, char open_brace) const { - if (open_brace == '{' && c == '}') { - //great - } else { - throw_invalid(); - } - } - - void check_close_brace(wchar_t c, wchar_t open_brace) const { - if (open_brace == L'{' && c == L'}') { - // great - } else { - throw_invalid(); - } - } - - void throw_invalid() const { - BOOST_THROW_EXCEPTION(std::runtime_error("invalid uuid string")); - } -}; - -}} // namespace boost::uuids - -#endif //BOOST_UUID_STRING_GENERATOR_HPP - |