mirror/Sprout
1
0
Fork 0
mirror of https://github.com/bolero-MURAKAMI/Sprout.git synced 2024-12-23 21:25:49 +00:00
Code Issues Projects Releases Packages Wiki Activity Actions

sprout/weed/parser/directive/as_array.hpp 追加

Browse source 
sprout/weed/parser/directive/as_tuple.hpp 追加
This commit is contained in:
bolero-MURAKAMI 2012-01-10 23:57:46 +09:00
parent a110b0ad0f
commit e731c3caf4
4 changed files with 200 additions and 2 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

18
sprout/utility/pack.hpp
View file

@ -13,15 +13,29 @@ namespace sprout {
//
namespace detail {
template<std::size_t N, typename Head, typename... Tail>
struct tppack_at_impl {
struct tppack_at_impl_1 {
public:
typedef typename sprout::detail::tppack_at_impl<N - 1, Tail...>::type type;
};
template<typename Head, typename... Tail>
struct tppack_at_impl<0, Head, Tail...> {
struct tppack_at_impl_1<0, Head, Tail...> {
public:
typedef Head type;
};
template<
std::size_t N,
typename... Args,
typename std::enable_if<(N < sizeof...(Args))>::type*& = sprout::enabler
>
struct tppack_at_impl
: public sprout::detail::tppack_at_impl_1<N, Args...>
{};
template<
std::size_t N,
typename... Args,
typename std::enable_if<(N >= sizeof...(Args))>::type*& = sprout::enabler
>
struct tppack_at_impl {};
} // namespace detail
template<std::size_t N, typename... Args>
struct tppack_at

2
sprout/weed/parser/directive.hpp
View file

@ -4,5 +4,7 @@
#include <sprout/config.hpp>
#include <sprout/weed/parser/directive/omit.hpp>
#include <sprout/weed/parser/directive/repeat.hpp>
#include <sprout/weed/parser/directive/as_array.hpp>
#include <sprout/weed/parser/directive/as_tuple.hpp>
#endif // #ifndef SPROUT_WEED_PARSER_DIRECTIVE_HPP

91
sprout/weed/parser/directive/as_array.hpp Normal file
View file

@ -0,0 +1,91 @@
#ifndef SPROUT_WEED_PARSER_DIRECTIVE_AS_ARRAY_HPP
#define SPROUT_WEED_PARSER_DIRECTIVE_AS_ARRAY_HPP
#include <cstddef>
#include <sprout/config.hpp>
#include <sprout/array.hpp>
#include <sprout/weed/parser_result.hpp>
#include <sprout/weed/expr/make_terminal_or_expr.hpp>
#include <sprout/weed/expr/eval.hpp>
#include <sprout/weed/parser/parser_base.hpp>
#include <sprout/weed/traits/type/is_unused.hpp>
#include <sprout/weed/traits/expr/terminal_or_expr_of.hpp>
#include <sprout/weed/traits/parser/attribute_of.hpp>
namespace sprout {
namespace weed {
//
// as_array_p
//
template<typename Parser>
struct as_array_p
: public sprout::weed::parser_base
{
public:
template<typename Context, typename Iterator>
struct attribute {
private:
typedef typename sprout::weed::traits::attribute_of<Parser, Iterator, Context>::type attr_type;
private:
static_assert(!sprout::weed::traits::is_unused<attr_type>::value, "invalid attribute : unused");
public:
typedef sprout::array<attr_type, 1> type;
};
template<typename Context, typename Iterator>
struct result {
public:
typedef sprout::weed::parser_result<Iterator, typename attribute<Context, Iterator>::type> type;
};
private:
typedef typename sprout::weed::traits::terminal_or_expr_of<Parser>::type expr_type;
private:
expr_type expr_;
private:
template<typename Context, typename Iterator, typename Result>
SPROUT_CONSTEXPR typename result<Context, Iterator>::type call(
Iterator first,
Result const& res
) const
{
typedef typename result<Context, Iterator>::type result_type;
typedef typename attribute<Context, Iterator>::type attribute_type;
return res.success()
? result_type(true, res.current(), attribute_type{res.attr()})
: result_type(false, first, attribute_type())
;
}
public:
as_array_p() = default;
SPROUT_CONSTEXPR explicit as_array_p(
Parser const& p
)
: expr_(sprout::weed::make_terminal_or_expr(p))
{}
template<typename Context, typename Iterator>
SPROUT_CONSTEXPR typename result<Context, Iterator>::type operator()(
Iterator first,
Iterator last,
Context const& ctx
) const
{
return call<Context>(first, sprout::weed::eval(expr_, ctx));
}
};
//
// as_array_d
//
struct as_array_d {
public:
template<typename Parser>
SPROUT_CONSTEXPR sprout::weed::as_array_p<Parser> operator[](Parser const& p) const {
return sprout::weed::as_array_p<Parser>(p);
}
};
//
// as_array
//
SPROUT_CONSTEXPR sprout::weed::as_array_d as_array = sprout::weed::as_array_d();
} // namespace weed
} // namespace sprout
#endif // #ifndef SPROUT_WEED_PARSER_DIRECTIVE_AS_ARRAY_HPP

91
sprout/weed/parser/directive/as_tuple.hpp Normal file
View file

@ -0,0 +1,91 @@
#ifndef SPROUT_WEED_PARSER_DIRECTIVE_AS_TUPLE_HPP
#define SPROUT_WEED_PARSER_DIRECTIVE_AS_TUPLE_HPP
#include <cstddef>
#include <sprout/config.hpp>
#include <sprout/tuple/tuple.hpp>
#include <sprout/weed/parser_result.hpp>
#include <sprout/weed/expr/make_terminal_or_expr.hpp>
#include <sprout/weed/expr/eval.hpp>
#include <sprout/weed/parser/parser_base.hpp>
#include <sprout/weed/traits/type/is_unused.hpp>
#include <sprout/weed/traits/expr/terminal_or_expr_of.hpp>
#include <sprout/weed/traits/parser/attribute_of.hpp>
namespace sprout {
namespace weed {
//
// as_tuple_p
//
template<typename Parser>
struct as_tuple_p
: public sprout::weed::parser_base
{
public:
template<typename Context, typename Iterator>
struct attribute {
private:
typedef typename sprout::weed::traits::attribute_of<Parser, Iterator, Context>::type attr_type;
private:
static_assert(!sprout::weed::traits::is_unused<attr_type>::value, "invalid attribute : unused");
public:
typedef sprout::tuples::tuple<attr_type> type;
};
template<typename Context, typename Iterator>
struct result {
public:
typedef sprout::weed::parser_result<Iterator, typename attribute<Context, Iterator>::type> type;
};
private:
typedef typename sprout::weed::traits::terminal_or_expr_of<Parser>::type expr_type;
private:
expr_type expr_;
private:
template<typename Context, typename Iterator, typename Result>
SPROUT_CONSTEXPR typename result<Context, Iterator>::type call(
Iterator first,
Result const& res
) const
{
typedef typename result<Context, Iterator>::type result_type;
typedef typename attribute<Context, Iterator>::type attribute_type;
return res.success()
? result_type(true, res.current(), attribute_type(res.attr()))
: result_type(false, first, attribute_type())
;
}
public:
as_tuple_p() = default;
SPROUT_CONSTEXPR explicit as_tuple_p(
Parser const& p
)
: expr_(sprout::weed::make_terminal_or_expr(p))
{}
template<typename Context, typename Iterator>
SPROUT_CONSTEXPR typename result<Context, Iterator>::type operator()(
Iterator first,
Iterator last,
Context const& ctx
) const
{
return call<Context>(first, sprout::weed::eval(expr_, ctx));
}
};
//
// as_tuple_d
//
struct as_tuple_d {
public:
template<typename Parser>
SPROUT_CONSTEXPR sprout::weed::as_tuple_p<Parser> operator[](Parser const& p) const {
return sprout::weed::as_tuple_p<Parser>(p);
}
};
//
// as_tuple
//
SPROUT_CONSTEXPR sprout::weed::as_tuple_d as_tuple = sprout::weed::as_tuple_d();
} // namespace weed
} // namespace sprout
#endif // #ifndef SPROUT_WEED_PARSER_DIRECTIVE_AS_TUPLE_HPP