54 lines
1.8 KiB
C++
Executable File
54 lines
1.8 KiB
C++
Executable File
/*=============================================================================
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Copyright (c) 2001-2007 Joel de Guzman
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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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#if !defined(BOOST_SPIRIT_INT_APR_17_2006_0830AM)
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#define BOOST_SPIRIT_INT_APR_17_2006_0830AM
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#include <boost/spirit/home/qi/skip.hpp>
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#include <boost/spirit/home/qi/numeric/numeric_utils.hpp>
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#include <boost/mpl/assert.hpp>
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namespace boost { namespace spirit { namespace qi
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{
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template <typename T, unsigned Radix, unsigned MinDigits, int MaxDigits>
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struct int_parser
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{
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// check template parameter 'Radix' for validity
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BOOST_MPL_ASSERT_MSG(
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Radix == 2 || Radix == 8 || Radix == 10 || Radix == 16,
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not_supported_radix, ());
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template <typename Component, typename Context, typename Iterator>
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struct attribute
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{
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typedef T type;
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};
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template <
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typename Component
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, typename Iterator, typename Context
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, typename Skipper, typename Attribute>
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static bool parse(
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Component const& /*component*/
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, Iterator& first, Iterator const& last
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, Context& /*context*/, Skipper const& skipper
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, Attribute& attr)
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{
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qi::skip(first, last, skipper);
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return extract_int<T, Radix, MinDigits, MaxDigits>
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::call(first, last, attr);
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}
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template <typename Component, typename Context>
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static std::string what(Component const& component, Context const& ctx)
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{
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return "integer";
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}
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};
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}}}
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#endif
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