Chris@102: /*=============================================================================
Chris@102:     Copyright (c) 2001-2014 Joel de Guzman
Chris@102:     Copyright (c) 2013 Carl Barron
Chris@102: 
Chris@102:     Distributed under the Boost Software License, Version 1.0. (See accompanying
Chris@102:     file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
Chris@102: ==============================================================================*/
Chris@102: #if !defined(BOOST_SPIRIT_X3_SYMBOLS_MARCH_11_2007_1055AM)
Chris@102: #define BOOST_SPIRIT_X3_SYMBOLS_MARCH_11_2007_1055AM
Chris@102: 
Chris@102: #if defined(_MSC_VER)
Chris@102: #pragma once
Chris@102: #endif
Chris@102: 
Chris@102: #include <boost/spirit/home/x3/core/skip_over.hpp>
Chris@102: #include <boost/spirit/home/x3/core/parser.hpp>
Chris@102: #include <boost/spirit/home/x3/string/tst.hpp>
Chris@102: #include <boost/spirit/home/x3/support/unused.hpp>
Chris@102: #include <boost/spirit/home/x3/support/traits/string_traits.hpp>
Chris@102: #include <boost/spirit/home/x3/support/traits/move_to.hpp>
Chris@102: 
Chris@102: #include <boost/fusion/include/at.hpp>
Chris@102: #include <boost/range.hpp>
Chris@102: #include <boost/type_traits/add_reference.hpp>
Chris@102: #include <boost/type_traits/is_same.hpp>
Chris@102: #include <boost/shared_ptr.hpp>
Chris@102: 
Chris@102: #include <initializer_list>
Chris@102: 
Chris@102: #if defined(BOOST_MSVC)
Chris@102: # pragma warning(push)
Chris@102: # pragma warning(disable: 4355) // 'this' : used in base member initializer list warning
Chris@102: #endif
Chris@102: 
Chris@102: namespace boost { namespace spirit { namespace x3
Chris@102: {
Chris@102:     template <
Chris@102:         typename Char = char
Chris@102:       , typename T = unused_type
Chris@102:       , typename Lookup = tst<Char, T>
Chris@102:       , typename Filter = tst_pass_through>
Chris@102:     struct symbols : parser<symbols<Char, T, Lookup, Filter>>
Chris@102:     {
Chris@102:         typedef Char char_type; // the character type
Chris@102:         typedef T value_type; // the value associated with each entry
Chris@102:         typedef symbols<Char, T, Lookup, Filter> this_type;
Chris@102:         typedef value_type attribute_type;
Chris@102: 
Chris@102:         static bool const has_attribute =
Chris@102:             !is_same<unused_type, attribute_type>::value;
Chris@102:         static bool const handles_container =
Chris@102:             traits::is_container<attribute_type>::value;
Chris@102: 
Chris@102:         symbols(std::string const& name = "symbols")
Chris@102:           : add(*this)
Chris@102:           , remove(*this)
Chris@102:           , lookup(new Lookup())
Chris@102:           , name_(name)
Chris@102:         {
Chris@102:         }
Chris@102: 
Chris@102:         symbols(symbols const& syms)
Chris@102:           : add(*this)
Chris@102:           , remove(*this)
Chris@102:           , lookup(syms.lookup)
Chris@102:           , name_(syms.name_)
Chris@102:         {
Chris@102:         }
Chris@102: 
Chris@102:         template <typename Filter_>
Chris@102:         symbols(symbols<Char, T, Lookup, Filter_> const& syms)
Chris@102:           : add(*this)
Chris@102:           , remove(*this)
Chris@102:           , lookup(syms.lookup)
Chris@102:           , name_(syms.name_)
Chris@102:         {
Chris@102:         }
Chris@102: 
Chris@102:         template <typename Symbols>
Chris@102:         symbols(Symbols const& syms, std::string const& name = "symbols")
Chris@102:           : add(*this)
Chris@102:           , remove(*this)
Chris@102:           , lookup(new Lookup())
Chris@102:           , name_(name)
Chris@102:         {
Chris@102:             typename range_const_iterator<Symbols>::type si = boost::begin(syms);
Chris@102:             while (si != boost::end(syms))
Chris@102:                 add(*si++);
Chris@102:         }
Chris@102: 
Chris@102:         template <typename Symbols, typename Data>
Chris@102:         symbols(Symbols const& syms, Data const& data
Chris@102:               , std::string const& name = "symbols")
Chris@102:           : add(*this)
Chris@102:           , remove(*this)
Chris@102:           , lookup(new Lookup())
Chris@102:           , name_(name)
Chris@102:         {
Chris@102:             typename range_const_iterator<Symbols>::type si = boost::begin(syms);
Chris@102:             typename range_const_iterator<Data>::type di = boost::begin(data);
Chris@102:             while (si != boost::end(syms))
Chris@102:                 add(*si++, *di++);
Chris@102:         }
Chris@102: 
Chris@102:         symbols(std::initializer_list<std::pair<Char const*, T>> syms
Chris@102:               , std::string const & name="symbols")
Chris@102:           : add(*this)
Chris@102:           , remove(*this)
Chris@102:           , lookup(new Lookup())
Chris@102:           , name_(name)
Chris@102:         {
Chris@102:             typedef std::initializer_list<std::pair<Char const*, T>> symbols_t;
Chris@102:             typename range_const_iterator<symbols_t>::type si = boost::begin(syms);
Chris@102:             for (;si != boost::end(syms); ++si)
Chris@102:                 add(si->first, si->second);
Chris@102:         }
Chris@102:         
Chris@102:         symbols(std::initializer_list<Char const*> syms
Chris@102:               , std::string const &name="symbols")
Chris@102:           : add(*this)
Chris@102:           , remove(*this)
Chris@102:           , lookup(new Lookup())
Chris@102:           , name_(name)
Chris@102:         {
Chris@102:             typedef std::initializer_list<Char const*> symbols_t;
Chris@102:             typename range_const_iterator<symbols_t>::type si = boost::begin(syms);
Chris@102:             while (si != boost::end(syms))
Chris@102:                 add(*si++);
Chris@102:         }
Chris@102: 
Chris@102:         symbols&
Chris@102:         operator=(symbols const& rhs)
Chris@102:         {
Chris@102:             name_ = rhs.name_;
Chris@102:             lookup = rhs.lookup;
Chris@102:             return *this;
Chris@102:         }
Chris@102: 
Chris@102:         template <typename Filter_>
Chris@102:         symbols&
Chris@102:         operator=(symbols<Char, T, Lookup, Filter_> const& rhs)
Chris@102:         {
Chris@102:             name_ = rhs.name_;
Chris@102:             lookup = rhs.lookup;
Chris@102:             return *this;
Chris@102:         }
Chris@102: 
Chris@102:         void clear()
Chris@102:         {
Chris@102:             lookup->clear();
Chris@102:         }
Chris@102: 
Chris@102:         struct adder;
Chris@102:         struct remover;
Chris@102: 
Chris@102:         template <typename Str>
Chris@102:         adder const&
Chris@102:         operator=(Str const& str)
Chris@102:         {
Chris@102:             lookup->clear();
Chris@102:             return add(str);
Chris@102:         }
Chris@102: 
Chris@102:         template <typename Str>
Chris@102:         friend adder const&
Chris@102:         operator+=(symbols& sym, Str const& str)
Chris@102:         {
Chris@102:             return sym.add(str);
Chris@102:         }
Chris@102: 
Chris@102:         template <typename Str>
Chris@102:         friend remover const&
Chris@102:         operator-=(symbols& sym, Str const& str)
Chris@102:         {
Chris@102:             return sym.remove(str);
Chris@102:         }
Chris@102: 
Chris@102:         template <typename F>
Chris@102:         void for_each(F f) const
Chris@102:         {
Chris@102:             lookup->for_each(f);
Chris@102:         }
Chris@102: 
Chris@102:         template <typename Str>
Chris@102:         value_type& at(Str const& str)
Chris@102:         {
Chris@102:             return *lookup->add(traits::get_string_begin<Char>(str)
Chris@102:                 , traits::get_string_end<Char>(str), T());
Chris@102:         }
Chris@102: 
Chris@102:         template <typename Iterator>
Chris@102:         value_type* prefix_find(Iterator& first, Iterator const& last)
Chris@102:         {
Chris@102:             return lookup->find(first, last, Filter());
Chris@102:         }
Chris@102: 
Chris@102:         template <typename Iterator>
Chris@102:         value_type const* prefix_find(Iterator& first, Iterator const& last) const
Chris@102:         {
Chris@102:             return lookup->find(first, last, Filter());
Chris@102:         }
Chris@102: 
Chris@102:         template <typename Str>
Chris@102:         value_type* find(Str const& str)
Chris@102:         {
Chris@102:             return find_impl(traits::get_string_begin<Char>(str)
Chris@102:                 , traits::get_string_end<Char>(str));
Chris@102:         }
Chris@102: 
Chris@102:         template <typename Str>
Chris@102:         value_type const* find(Str const& str) const
Chris@102:         {
Chris@102:             return find_impl(traits::get_string_begin<Char>(str)
Chris@102:                 , traits::get_string_end<Char>(str));
Chris@102:         }
Chris@102: 
Chris@102:     private:
Chris@102:         template <typename Iterator>
Chris@102:         value_type* find_impl(Iterator begin, Iterator end)
Chris@102:         {
Chris@102:             value_type* r = lookup->find(begin, end, Filter());
Chris@102:             return begin == end ? r : 0;
Chris@102:         }
Chris@102: 
Chris@102:         template <typename Iterator>
Chris@102:         value_type const* find_impl(Iterator begin, Iterator end) const
Chris@102:         {
Chris@102:             value_type const* r = lookup->find(begin, end, Filter());
Chris@102:             return begin == end ? r : 0;
Chris@102:         }
Chris@102: 
Chris@102:     public:
Chris@102:         template <typename Iterator, typename Context, typename Attribute>
Chris@102:         bool parse(Iterator& first, Iterator const& last
Chris@102:           , Context const& context, unused_type, Attribute& attr) const
Chris@102:         {
Chris@102:             x3::skip_over(first, last, context);
Chris@102: 
Chris@102:             if (value_type* val_ptr
Chris@102:                 = lookup->find(first, last, Filter()))
Chris@102:             {
Chris@102:                 x3::traits::move_to(*val_ptr, attr);
Chris@102:                 return true;
Chris@102:             }
Chris@102:             return false;
Chris@102:         }
Chris@102: 
Chris@102:         void name(std::string const &str)
Chris@102:         {
Chris@102:             name_ = str;
Chris@102:         }
Chris@102:         std::string const &name() const
Chris@102:         {
Chris@102:             return name_;
Chris@102:         }
Chris@102: 
Chris@102:         struct adder
Chris@102:         {
Chris@102:             template <typename, typename = unused_type, typename = unused_type>
Chris@102:             struct result { typedef adder const& type; };
Chris@102: 
Chris@102:             adder(symbols& sym)
Chris@102:               : sym(sym)
Chris@102:             {
Chris@102:             }
Chris@102: 
Chris@102:             template <typename Iterator>
Chris@102:             adder const&
Chris@102:             operator()(Iterator first, Iterator last, T const& val) const
Chris@102:             {
Chris@102:                 sym.lookup->add(first, last, val);
Chris@102:                 return *this;
Chris@102:             }
Chris@102: 
Chris@102:             template <typename Str>
Chris@102:             adder const&
Chris@102:             operator()(Str const& s, T const& val = T()) const
Chris@102:             {
Chris@102:                 sym.lookup->add(traits::get_string_begin<Char>(s)
Chris@102:                   , traits::get_string_end<Char>(s), val);
Chris@102:                 return *this;
Chris@102:             }
Chris@102: 
Chris@102:             template <typename Str>
Chris@102:             adder const&
Chris@102:             operator,(Str const& s) const
Chris@102:             {
Chris@102:                 sym.lookup->add(traits::get_string_begin<Char>(s)
Chris@102:                   , traits::get_string_end<Char>(s), T());
Chris@102:                 return *this;
Chris@102:             }
Chris@102: 
Chris@102:             symbols& sym;
Chris@102:         };
Chris@102: 
Chris@102:         struct remover
Chris@102:         {
Chris@102:             template <typename, typename = unused_type, typename = unused_type>
Chris@102:             struct result { typedef remover const& type; };
Chris@102: 
Chris@102:             remover(symbols& sym)
Chris@102:               : sym(sym)
Chris@102:             {
Chris@102:             }
Chris@102: 
Chris@102:             template <typename Iterator>
Chris@102:             remover const&
Chris@102:             operator()(Iterator const& first, Iterator const& last) const
Chris@102:             {
Chris@102:                 sym.lookup->remove(first, last);
Chris@102:                 return *this;
Chris@102:             }
Chris@102: 
Chris@102:             template <typename Str>
Chris@102:             remover const&
Chris@102:             operator()(Str const& s) const
Chris@102:             {
Chris@102:                 sym.lookup->remove(traits::get_string_begin<Char>(s)
Chris@102:                   , traits::get_string_end<Char>(s));
Chris@102:                 return *this;
Chris@102:             }
Chris@102: 
Chris@102:             template <typename Str>
Chris@102:             remover const&
Chris@102:             operator,(Str const& s) const
Chris@102:             {
Chris@102:                 sym.lookup->remove(traits::get_string_begin<Char>(s)
Chris@102:                   , traits::get_string_end<Char>(s));
Chris@102:                 return *this;
Chris@102:             }
Chris@102: 
Chris@102:             symbols& sym;
Chris@102:         };
Chris@102: 
Chris@102:         adder add;
Chris@102:         remover remove;
Chris@102:         shared_ptr<Lookup> lookup;
Chris@102:         std::string name_;
Chris@102:     };
Chris@102: 
Chris@102:     template <typename Char, typename T, typename Lookup, typename Filter>
Chris@102:     struct get_info<symbols<Char, T, Lookup, Filter>>
Chris@102:     {
Chris@102:       typedef std::string result_type;
Chris@102:       result_type operator()(symbols< Char, T
Chris@102:                                     , Lookup, Filter
Chris@102:                                     > const& symbols) const
Chris@102:       {
Chris@102:          return symbols.name();
Chris@102:       }
Chris@102:     };
Chris@102: }}}
Chris@102: 
Chris@102: #if defined(BOOST_MSVC)
Chris@102: # pragma warning(pop)
Chris@102: #endif
Chris@102: 
Chris@102: #endif