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add weed parser: char_("character-sets")

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This commit is contained in:
bolero-MURAKAMI 2013-05-22 06:49:10 +09:00
parent ab096d442c
commit a77fd5ffef
4 changed files with 183 additions and 1 deletions
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66
sprout/weed/parser/char/char.hpp
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@ -4,6 +4,9 @@
#include <iterator>
#include <type_traits>
#include <sprout/config.hpp>
#include <sprout/string.hpp>
#include <sprout/container/begin.hpp>
#include <sprout/container/end.hpp>
#include <sprout/iterator/next.hpp>
#include <sprout/type_traits/identity.hpp>
#include <sprout/weed/unused.hpp>
@ -11,6 +14,10 @@
#include <sprout/weed/parser/parser_base.hpp>
#include <sprout/weed/parser/lit.hpp>
#include <sprout/weed/traits/type/is_char_type.hpp>
#include <sprout/weed/traits/type/is_c_str.hpp>
#include <sprout/weed/traits/type/is_string.hpp>
#include <sprout/weed/detail/find_character_set.hpp>
#include <sprout/weed/detail/c_str_as_string.hpp>
namespace sprout {
namespace weed {
@ -152,6 +159,45 @@ namespace sprout {
}
};
//
// char_set_p
//
template<typename T>
struct char_set_p
: public sprout::weed::parser_base
{
public:
template<typename Context, typename Iterator>
struct attribute
: public sprout::identity<typename std::iterator_traits<Iterator>::value_type>
{};
template<typename Context, typename Iterator>
struct result
: public sprout::identity<sprout::weed::parser_result<Iterator, typename attribute<Context, Iterator>::type> >
{};
private:
T t_;
public:
char_set_p() = default;
explicit SPROUT_CONSTEXPR char_set_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 first != last && sprout::weed::detail::find_character_set(sprout::begin(t_), sprout::end(t_), *first) != sprout::end(t_)
? result_type(true, sprout::next(first), *first)
: result_type(false, first, attribute_type())
;
}
};
//
// any_char_p
//
@ -198,6 +244,26 @@ namespace sprout {
operator()(T const& f, T const& l) const {
return sprout::weed::char_range_p<T>(f, l);
}
template<typename T>
SPROUT_CONSTEXPR typename std::enable_if<
sprout::weed::traits::is_c_str<T const>::value,
sprout::weed::char_set_p<
typename sprout::weed::detail::c_str_as_string<T const>::type
>
>::type
operator()(T const& t) const {
return sprout::weed::char_set_p<
typename sprout::weed::detail::c_str_as_string<T const>::type
>(sprout::to_string(t));
}
template<typename T>
SPROUT_CONSTEXPR typename std::enable_if<
sprout::weed::traits::is_string<T>::value,
sprout::weed::char_set_p<T>
>::type
operator()(T const& t) const {
return sprout::weed::char_set_p<T>(t);
}
};
//
// char_