49 lines
1.4 KiB
C++
49 lines
1.4 KiB
C++
// Copyright (c) 2001-2011 Hartmut Kaiser
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// Copyright (c) 2011 Michael Caisse
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//
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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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#include <boost/spirit/include/qi.hpp>
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namespace qi = boost::spirit::qi;
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template <typename T>
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struct german_real_policies : qi::real_policies<T>
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{
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template <typename Iterator>
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static bool parse_dot(Iterator& first, Iterator const& last)
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{
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if (first == last || *first != ',')
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return false;
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++first;
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return true;
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}
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};
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qi::real_parser<double, german_real_policies<double> > const german_double;
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///////////////////////////////////////////////////////////////////////////////
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int main()
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{
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std::string input("123,456");
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std::string::iterator begin = input.begin();
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std::string::iterator end = input.end();
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double value = 0;
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if (!qi::parse(begin, end, german_double, value))
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{
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std::cout << "-------------------------------- \n";
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std::cout << "Parsing failed\n";
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std::cout << "-------------------------------- \n";
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}
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else
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{
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std::cout << "-------------------------------- \n";
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std::cout << "Parsing succeeded, got: " << value << "\n";
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std::cout << "---------------------------------\n";
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}
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return 0;
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}
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