mirror of
https://github.com/bolero-MURAKAMI/Sprout.git
synced 2024-12-27 21:45:42 +00:00
159 lines
4.6 KiB
C++
159 lines
4.6 KiB
C++
#ifndef SPROUT_WEED_PARSER_STRING_STRING_HPP
|
|
#define SPROUT_WEED_PARSER_STRING_STRING_HPP
|
|
|
|
#include <type_traits>
|
|
#include <sprout/config.hpp>
|
|
#include <sprout/string.hpp>
|
|
#include <sprout/container/begin.hpp>
|
|
#include <sprout/container/end.hpp>
|
|
#include <sprout/container/size.hpp>
|
|
#include <sprout/iterator/operation.hpp>
|
|
#include <sprout/algorithm/equal.hpp>
|
|
#include <sprout/type_traits/identity.hpp>
|
|
#include <sprout/weed/unused.hpp>
|
|
#include <sprout/weed/parser_result.hpp>
|
|
#include <sprout/weed/parser/parser_base.hpp>
|
|
#include <sprout/weed/parser/lit.hpp>
|
|
#include <sprout/weed/traits/type/is_c_str.hpp>
|
|
#include <sprout/weed/traits/type/is_string.hpp>
|
|
#include <sprout/weed/detail/c_str_as_string.hpp>
|
|
|
|
namespace sprout {
|
|
namespace weed {
|
|
//
|
|
// lit_str_p
|
|
//
|
|
template<typename T>
|
|
struct lit_str_p
|
|
: public sprout::weed::parser_base
|
|
{
|
|
public:
|
|
template<typename Context, typename Iterator>
|
|
struct attribute
|
|
: public sprout::identity<sprout::weed::unused>
|
|
{};
|
|
template<typename Context, typename Iterator>
|
|
struct result
|
|
: public sprout::identity<sprout::weed::parser_result<Iterator, typename attribute<Context, Iterator>::type> >
|
|
{};
|
|
private:
|
|
T t_;
|
|
public:
|
|
lit_str_p() = default;
|
|
explicit SPROUT_CONSTEXPR lit_str_p(T const& t)
|
|
: t_(t)
|
|
{}
|
|
template<typename Context, typename Iterator>
|
|
SPROUT_CONSTEXPR typename result<Context, Iterator>::type operator()(
|
|
Iterator first,
|
|
Iterator last,
|
|
Context const&
|
|
) const
|
|
{
|
|
typedef typename result<Context, Iterator>::type result_type;
|
|
typedef typename attribute<Context, Iterator>::type attribute_type;
|
|
return sprout::distance(first, last) >= sprout::size(t_)
|
|
&& sprout::equal(sprout::begin(t_), sprout::end(t_), first)
|
|
? result_type(true, sprout::next(first, sprout::size(t_)), attribute_type())
|
|
: result_type(false, first, typename attribute<Context, Iterator>::type())
|
|
;
|
|
}
|
|
};
|
|
//
|
|
// lit_g
|
|
//
|
|
template<typename T>
|
|
struct lit_g::eval<
|
|
T,
|
|
typename std::enable_if<
|
|
sprout::weed::traits::is_c_str<T>::value
|
|
>::type
|
|
> {
|
|
public:
|
|
typedef sprout::weed::lit_str_p<
|
|
typename sprout::weed::detail::c_str_as_string<T const>::type
|
|
> result_type;
|
|
public:
|
|
SPROUT_CONSTEXPR result_type operator()(T const& t) const {
|
|
return result_type(sprout::to_string(t));
|
|
}
|
|
};
|
|
template<typename T>
|
|
struct lit_g::eval<
|
|
T,
|
|
typename std::enable_if<
|
|
sprout::weed::traits::is_string<T>::value
|
|
>::type
|
|
> {
|
|
public:
|
|
typedef sprout::weed::lit_str_p<T> result_type;
|
|
public:
|
|
SPROUT_CONSTEXPR result_type operator()(T const& t) const {
|
|
return result_type(t);
|
|
}
|
|
};
|
|
|
|
//
|
|
// str_p
|
|
//
|
|
template<typename T>
|
|
struct str_p
|
|
: public sprout::weed::parser_base
|
|
{
|
|
public:
|
|
template<typename Context, typename Iterator>
|
|
struct attribute
|
|
: public sprout::identity<T>
|
|
{};
|
|
template<typename Context, typename Iterator>
|
|
struct result
|
|
: public sprout::identity<sprout::weed::parser_result<Iterator, typename attribute<Context, Iterator>::type> >
|
|
{};
|
|
private:
|
|
T t_;
|
|
public:
|
|
str_p() = default;
|
|
explicit SPROUT_CONSTEXPR str_p(T const& t)
|
|
: t_(t)
|
|
{}
|
|
template<typename Context, typename Iterator>
|
|
SPROUT_CONSTEXPR typename result<Context, Iterator>::type operator()(
|
|
Iterator first,
|
|
Iterator last,
|
|
Context const&
|
|
) const
|
|
{
|
|
typedef typename result<Context, Iterator>::type result_type;
|
|
typedef typename attribute<Context, Iterator>::type attribute_type;
|
|
return sprout::distance(first, last) >= sprout::size(t_)
|
|
&& sprout::equal(sprout::begin(t_), sprout::end(t_), first)
|
|
? result_type(true, sprout::next(first, sprout::size(t_)), attribute_type())
|
|
: result_type(false, first, typename attribute<Context, Iterator>::type())
|
|
;
|
|
}
|
|
};
|
|
//
|
|
// string
|
|
//
|
|
template<typename T>
|
|
inline SPROUT_CONSTEXPR typename std::enable_if<
|
|
sprout::weed::traits::is_c_str<T const>::value,
|
|
sprout::weed::str_p<
|
|
typename sprout::weed::detail::c_str_as_string<T const>::type
|
|
>
|
|
>::type string(T const& t) {
|
|
return sprout::weed::str_p<
|
|
typename sprout::weed::detail::c_str_as_string<T const>::type
|
|
>(sprout::to_string(t));
|
|
}
|
|
template<typename T>
|
|
inline SPROUT_CONSTEXPR typename std::enable_if<
|
|
sprout::weed::traits::is_string<T>::value,
|
|
sprout::weed::str_p<T>
|
|
>::type string(T const& t) {
|
|
return sprout::weed::str_p<T>(t);
|
|
}
|
|
} // namespace weed
|
|
} // namespace sprout
|
|
|
|
#endif // #ifndef SPROUT_WEED_PARSER_STRING_STRING_HPP
|