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add parser impl for integer, float, boolean

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ToruNiina
2017-05-11 00:14:22 +09:00
parent 88e2c3fe48
commit f5d301016f
2 changed files with 220 additions and 52 deletions
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108
toml/parser.hpp
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@@ -284,58 +284,62 @@ struct parse_string
}
};
//
// template<typename charT>
// struct parse_integer
// {
// typedef charT value_type;
// typedef std::basic_string<value_type> string_type;
// typedef toml::Integer result_type;
//
// template<typename Iterator, class = typename std::enable_if<
// std::is_same<typename std::iterator_traits<Iterator>::value_type,
// value_type>::value>::type>
// static result_type invoke(Iterator iter, Iterator end)
// {
// string_type result; result.resize(std::distance(iter, end));
// std::copy_if(iter, end, result.begin(), [](charT c){return c != '_';});
// return std::stoi(result);
// }
// };
//
// template<typename charT>
// struct parse_float
// {
// typedef charT value_type;
// typedef std::basic_string<value_type> string_type;
// typedef toml::Float result_type;
//
// template<typename Iterator, class = typename std::enable_if<
// std::is_same<typename std::iterator_traits<Iterator>::value_type,
// value_type>::value>::type>
// static result_type invoke(Iterator iter, Iterator end)
// {
// string_type result; result.resize(std::distance(iter, end));
// std::copy_if(iter, end, result.begin(), [](charT c){return c != '_';});
// return std::stod(result);
// }
// };
//
// template<typename charT>
// struct parse_boolean
// {
// typedef charT value_type;
// typedef toml::Boolean result_type;
//
// template<typename Iterator, class = typename std::enable_if<
// std::is_same<typename std::iterator_traits<Iterator>::value_type,
// value_type>::value>::type>
// static result_type invoke(Iterator iter, Iterator end)
// {
// return (std::distance(iter, end) == 4);
// }
// };
//
struct parse_integer
{
typedef toml::charactor value_type;
typedef std::basic_string<value_type> string_type;
typedef detail::result<toml::Integer> result_type;
template<typename Iterator, class = typename std::enable_if<
std::is_same<typename std::iterator_traits<Iterator>::value_type,
value_type>::value>::type>
static std::pair<result_type, Iterator> invoke(Iterator iter)
{
const Iterator end = is_integer<value_type>::invoke(iter);
if(iter == end) return std::make_pair(result_type{}, iter);
string_type result; result.resize(std::distance(iter, end));
std::copy_if(iter, end, result.begin(), [](value_type c){return c != '_';});
return std::make_pair(std::stoll(result), end);
}
};
struct parse_float
{
typedef toml::charactor value_type;
typedef std::basic_string<value_type> string_type;
typedef detail::result<toml::Float> result_type;
template<typename Iterator, class = typename std::enable_if<
std::is_same<typename std::iterator_traits<Iterator>::value_type,
value_type>::value>::type>
static std::pair<result_type, Iterator> invoke(Iterator iter)
{
const Iterator end = is_float<value_type>::invoke(iter);
if(iter == end) return std::make_pair(result_type{}, iter);
string_type result; result.resize(std::distance(iter, end));
std::copy_if(iter, end, result.begin(), [](value_type c){return c != '_';});
return std::make_pair(std::stod(result), end);
}
};
struct parse_boolean
{
typedef toml::charactor value_type;
typedef detail::result<toml::Boolean> result_type;
template<typename Iterator, class = typename std::enable_if<
std::is_same<typename std::iterator_traits<Iterator>::value_type,
value_type>::value>::type>
static std::pair<result_type, Iterator> invoke(Iterator iter)
{
const Iterator end = is_boolean<value_type>::invoke(iter);
if(iter == end) return std::make_pair(result_type{}, iter);
return std::make_pair((std::distance(iter, end) == 4), end);
}
};
// template<typename charT>
// struct parse_local_time
// {