You cannot select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and dots ('.'), can be up to 35 characters long. Letters must be lowercase.
90 lines
2.9 KiB
90 lines
2.9 KiB
// Copyright (c) 2001-2011 Hartmut Kaiser |
|
// |
|
// Distributed under the Boost Software License, Version 1.0. (See accompanying |
|
// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt) |
|
|
|
#if !defined(BOOST_SPIRIT_QI_AUTO_NOV_29_2009_0336PM) |
|
#define BOOST_SPIRIT_QI_AUTO_NOV_29_2009_0336PM |
|
|
|
#if defined(_MSC_VER) |
|
#pragma once |
|
#endif |
|
|
|
#include <boost/spirit/home/support/common_terminals.hpp> |
|
#include <boost/spirit/home/support/info.hpp> |
|
#include <boost/spirit/home/support/container.hpp> |
|
#include <boost/spirit/home/support/detail/hold_any.hpp> |
|
#include <boost/spirit/home/qi/domain.hpp> |
|
#include <boost/spirit/home/qi/meta_compiler.hpp> |
|
#include <boost/spirit/home/qi/skip_over.hpp> |
|
#include <boost/spirit/home/qi/parser.hpp> |
|
#include <boost/spirit/home/qi/auto/create_parser.hpp> |
|
#include <boost/mpl/bool.hpp> |
|
|
|
/////////////////////////////////////////////////////////////////////////////// |
|
namespace boost { namespace spirit |
|
{ |
|
/////////////////////////////////////////////////////////////////////////// |
|
// Enablers |
|
/////////////////////////////////////////////////////////////////////////// |
|
template <> |
|
struct use_terminal<qi::domain, tag::auto_> // enables auto_ |
|
: mpl::true_ {}; |
|
}} |
|
|
|
/////////////////////////////////////////////////////////////////////////////// |
|
namespace boost { namespace spirit { namespace qi |
|
{ |
|
#ifndef BOOST_SPIRIT_NO_PREDEFINED_TERMINALS |
|
using spirit::auto_; |
|
#endif |
|
using spirit::auto_type; |
|
|
|
/////////////////////////////////////////////////////////////////////////// |
|
template <typename Modifiers> |
|
struct auto_parser |
|
: parser<auto_parser<Modifiers> > |
|
{ |
|
template <typename Context, typename Iterator> |
|
struct attribute |
|
{ |
|
typedef spirit::hold_any type; |
|
}; |
|
|
|
auto_parser(Modifiers const& modifiers) |
|
: modifiers_(modifiers) {} |
|
|
|
template <typename Iterator, typename Context, typename Skipper |
|
, typename Attribute> |
|
bool parse(Iterator& first, Iterator const& last |
|
, Context& context, Skipper const& skipper, Attribute& attr) const |
|
{ |
|
return compile<qi::domain>(create_parser<Attribute>(), modifiers_) |
|
.parse(first, last, context, skipper, attr); |
|
} |
|
|
|
template <typename Context> |
|
info what(Context& /*context*/) const |
|
{ |
|
return info("auto_"); |
|
} |
|
|
|
Modifiers modifiers_; |
|
}; |
|
|
|
/////////////////////////////////////////////////////////////////////////// |
|
// Generator generators: make_xxx function (objects) |
|
/////////////////////////////////////////////////////////////////////////// |
|
template <typename Modifiers> |
|
struct make_primitive<tag::auto_, Modifiers> |
|
{ |
|
typedef auto_parser<Modifiers> result_type; |
|
|
|
result_type operator()(unused_type, Modifiers const& modifiers) const |
|
{ |
|
return result_type(modifiers); |
|
} |
|
}; |
|
}}} |
|
|
|
#endif
|
|
|