mirror of
https://github.com/bolero-MURAKAMI/Sprout.git
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277 lines
8.8 KiB
C++
277 lines
8.8 KiB
C++
/*=============================================================================
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Copyright (c) 2011-2016 Bolero MURAKAMI
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https://github.com/bolero-MURAKAMI/Sprout
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Distributed under the Boost Software License, Version 1.0. (See accompanying
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file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
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=============================================================================*/
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#ifndef SPROUT_WEED_PARSER_CHAR_CHAR_HPP
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#define SPROUT_WEED_PARSER_CHAR_CHAR_HPP
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#include <iterator>
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#include <type_traits>
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#include <sprout/config.hpp>
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#include <sprout/string.hpp>
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#include <sprout/container/begin.hpp>
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#include <sprout/container/end.hpp>
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#include <sprout/iterator/next.hpp>
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#include <sprout/type_traits/identity.hpp>
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#include <sprout/weed/unused.hpp>
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#include <sprout/weed/parser_result.hpp>
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#include <sprout/weed/parser/parser_base.hpp>
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#include <sprout/weed/parser/lit.hpp>
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#include <sprout/weed/traits/type/is_char_type.hpp>
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#include <sprout/weed/traits/type/is_c_str.hpp>
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#include <sprout/weed/traits/type/is_string.hpp>
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#include <sprout/weed/detail/find_character_set.hpp>
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#include <sprout/weed/detail/c_str_as_string.hpp>
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namespace sprout {
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namespace weed {
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//
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// lit_char_p
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//
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template<typename T>
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struct lit_char_p
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: public sprout::weed::parser_base
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{
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public:
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template<typename Context, typename Iterator>
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struct attribute
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: public sprout::identity<sprout::weed::unused>
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{};
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template<typename Context, typename Iterator>
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struct result
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: public sprout::identity<sprout::weed::parser_result<Iterator, typename attribute<Context, Iterator>::type> >
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{};
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private:
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T t_;
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public:
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SPROUT_CONSTEXPR lit_char_p() SPROUT_DEFAULTED_DEFAULT_CONSTRUCTOR_DECL
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explicit SPROUT_CONSTEXPR lit_char_p(T const& t)
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: t_(t)
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{}
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template<typename Context, typename Iterator>
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SPROUT_CONSTEXPR typename result<Context, Iterator>::type operator()(
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Iterator first, Iterator last,
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Context const&
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) const
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{
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typedef typename result<Context, Iterator>::type result_type;
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typedef typename attribute<Context, Iterator>::type attribute_type;
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typedef typename std::iterator_traits<Iterator>::value_type elem_type;
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return first != last && *first == elem_type(t_)
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? result_type(true, sprout::next(first), attribute_type())
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: result_type(false, first, typename attribute<Context, Iterator>::type())
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;
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}
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};
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//
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// lit_g
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//
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template<typename T>
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struct lit_g::eval<
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T,
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typename std::enable_if<
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sprout::weed::traits::is_char_type<T>::value
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>::type
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> {
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public:
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typedef sprout::weed::lit_char_p<T> result_type;
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public:
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SPROUT_CONSTEXPR result_type operator()(T const& t) const {
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return result_type(t);
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}
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};
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//
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// char_p
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//
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template<typename T>
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struct char_p
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: public sprout::weed::parser_base
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{
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public:
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template<typename Context, typename Iterator>
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struct attribute
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: public sprout::identity<typename std::iterator_traits<Iterator>::value_type>
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{};
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template<typename Context, typename Iterator>
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struct result
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: public sprout::identity<sprout::weed::parser_result<Iterator, typename attribute<Context, Iterator>::type> >
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{};
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private:
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T t_;
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public:
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SPROUT_CONSTEXPR char_p() SPROUT_DEFAULTED_DEFAULT_CONSTRUCTOR_DECL
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explicit SPROUT_CONSTEXPR char_p(T const& t)
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: t_(t)
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{}
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template<typename Context, typename Iterator>
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SPROUT_CONSTEXPR typename result<Context, Iterator>::type operator()(
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Iterator first, Iterator last,
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Context const&
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) const
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{
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typedef typename result<Context, Iterator>::type result_type;
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typedef typename attribute<Context, Iterator>::type attribute_type;
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typedef typename std::iterator_traits<Iterator>::value_type elem_type;
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return first != last && *first == elem_type(t_)
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? result_type(true, sprout::next(first), *first)
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: result_type(false, first, attribute_type())
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;
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}
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};
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//
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// char_range_p
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//
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template<typename T>
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struct char_range_p
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: public sprout::weed::parser_base
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{
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public:
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template<typename Context, typename Iterator>
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struct attribute
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: public sprout::identity<typename std::iterator_traits<Iterator>::value_type>
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{};
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template<typename Context, typename Iterator>
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struct result
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: public sprout::identity<sprout::weed::parser_result<Iterator, typename attribute<Context, Iterator>::type> >
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{};
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private:
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T f_;
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T l_;
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public:
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SPROUT_CONSTEXPR char_range_p() SPROUT_DEFAULTED_DEFAULT_CONSTRUCTOR_DECL
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SPROUT_CONSTEXPR char_range_p(T const& f, T const& l)
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: f_(f), l_(l)
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{}
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template<typename Context, typename Iterator>
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SPROUT_CONSTEXPR typename result<Context, Iterator>::type operator()(
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Iterator first, Iterator last,
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Context const&
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) const
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{
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typedef typename result<Context, Iterator>::type result_type;
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typedef typename attribute<Context, Iterator>::type attribute_type;
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typedef typename std::iterator_traits<Iterator>::value_type elem_type;
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return first != last && *first >= elem_type(f_) && *first <= elem_type(l_)
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? result_type(true, sprout::next(first), *first)
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: result_type(false, first, attribute_type())
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;
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}
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};
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//
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// char_set_p
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//
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template<typename T>
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struct char_set_p
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: public sprout::weed::parser_base
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{
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public:
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template<typename Context, typename Iterator>
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struct attribute
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: public sprout::identity<typename std::iterator_traits<Iterator>::value_type>
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{};
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template<typename Context, typename Iterator>
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struct result
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: public sprout::identity<sprout::weed::parser_result<Iterator, typename attribute<Context, Iterator>::type> >
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{};
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private:
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T t_;
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public:
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SPROUT_CONSTEXPR char_set_p() SPROUT_DEFAULTED_DEFAULT_CONSTRUCTOR_DECL
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explicit SPROUT_CONSTEXPR char_set_p(T const& t)
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: t_(t)
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{}
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template<typename Context, typename Iterator>
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SPROUT_CONSTEXPR typename result<Context, Iterator>::type operator()(
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Iterator first, Iterator last,
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Context const&
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) const
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{
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typedef typename result<Context, Iterator>::type result_type;
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typedef typename attribute<Context, Iterator>::type attribute_type;
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return first != last && sprout::weed::detail::find_character_set(sprout::begin(t_), sprout::end(t_), *first) != sprout::end(t_)
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? result_type(true, sprout::next(first), *first)
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: result_type(false, first, attribute_type())
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;
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}
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};
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//
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// any_char_p
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//
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struct any_char_p
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: public sprout::weed::parser_base
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{
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public:
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template<typename Context, typename Iterator>
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struct attribute
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: public sprout::identity<typename std::iterator_traits<Iterator>::value_type>
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{};
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template<typename Context, typename Iterator>
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struct result
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: public sprout::identity<sprout::weed::parser_result<Iterator, typename attribute<Context, Iterator>::type> >
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{};
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public:
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template<typename Context, typename Iterator>
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SPROUT_CONSTEXPR typename result<Context, Iterator>::type operator()(
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Iterator first, Iterator last,
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Context const&
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) const
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{
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typedef typename result<Context, Iterator>::type result_type;
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typedef typename attribute<Context, Iterator>::type attribute_type;
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return first != last
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? result_type(true, sprout::next(first), *first)
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: result_type(false, first, attribute_type())
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;
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}
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template<typename T>
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SPROUT_CONSTEXPR typename std::enable_if<
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sprout::weed::traits::is_char_type<T>::value,
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sprout::weed::char_p<T>
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>::type
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operator()(T const& t) const {
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return sprout::weed::char_p<T>(t);
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}
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template<typename T>
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SPROUT_CONSTEXPR typename std::enable_if<
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sprout::weed::traits::is_char_type<T>::value,
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sprout::weed::char_range_p<T>
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>::type
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operator()(T const& f, T const& l) const {
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return sprout::weed::char_range_p<T>(f, l);
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}
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template<typename T>
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SPROUT_CONSTEXPR typename std::enable_if<
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sprout::weed::traits::is_c_str<T const>::value,
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sprout::weed::char_set_p<
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typename sprout::weed::detail::c_str_as_string<T const>::type
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>
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>::type
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operator()(T const& t) const {
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return sprout::weed::char_set_p<
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typename sprout::weed::detail::c_str_as_string<T const>::type
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>(sprout::to_string(t));
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}
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template<typename T>
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SPROUT_CONSTEXPR typename std::enable_if<
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sprout::weed::traits::is_string<T>::value,
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sprout::weed::char_set_p<T>
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>::type
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operator()(T const& t) const {
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return sprout::weed::char_set_p<T>(t);
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}
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};
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//
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// char_
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//
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SPROUT_STATIC_CONSTEXPR sprout::weed::any_char_p char_ = sprout::weed::any_char_p();
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} // namespace weed
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} // namespace sprout
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#endif // #ifndef SPROUT_WEED_PARSER_CHAR_CHAR_HPP
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