106 lines
3.5 KiB
C++
106 lines
3.5 KiB
C++
/*****************************************************************************
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*
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* This file is part of Mapnik (c++ mapping toolkit)
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*
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* Copyright (C) 2012 Artem Pavlenko
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public
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* License as published by the Free Software Foundation; either
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* version 2.1 of the License, or (at your option) any later version.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public
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* License along with this library; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
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*
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*****************************************************************************/
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// boost
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#include <boost/spirit/include/qi.hpp>
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#define BOOST_SPIRIT_AUTO(domain_, name, expr) \
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typedef boost::proto::result_of:: \
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deep_copy<BOOST_TYPEOF(expr)>::type name##_expr_type; \
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BOOST_SPIRIT_ASSERT_MATCH( \
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boost::spirit::domain_::domain, name##_expr_type); \
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BOOST_AUTO(name, boost::proto::deep_copy(expr)); \
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namespace mapnik { namespace conversions {
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using namespace boost::spirit;
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BOOST_SPIRIT_AUTO(qi, INTEGER, qi::int_)
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BOOST_SPIRIT_AUTO(qi, FLOAT, qi::float_)
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BOOST_SPIRIT_AUTO(qi, DOUBLE, qi::double_)
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bool string2int(const char * value, int & result)
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{
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size_t length = strlen(value);
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if (length < 1 || value == NULL)
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return false;
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const char *iter = value;
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const char *end = value + length;
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bool r = qi::phrase_parse(iter,end,INTEGER,ascii::space,result);
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return r && (iter == end);
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}
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bool string2int(std::string const& value, int & result)
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{
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if (value.empty())
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return false;
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std::string::const_iterator str_beg = value.begin();
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std::string::const_iterator str_end = value.end();
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bool r = qi::phrase_parse(str_beg,str_end,INTEGER,ascii::space,result);
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return r && (str_beg == str_end);
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}
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bool string2double(std::string const& value, double & result)
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{
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if (value.empty())
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return false;
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std::string::const_iterator str_beg = value.begin();
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std::string::const_iterator str_end = value.end();
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bool r = qi::phrase_parse(str_beg,str_end,DOUBLE,ascii::space,result);
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return r && (str_beg == str_end);
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}
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bool string2double(const char * value, double & result)
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{
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size_t length = strlen(value);
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if (length < 1 || value == NULL)
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return false;
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const char *iter = value;
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const char *end = value + length;
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bool r = qi::phrase_parse(iter,end,DOUBLE,ascii::space,result);
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return r && (iter == end);
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}
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bool string2float(std::string const& value, float & result)
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{
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if (value.empty())
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return false;
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std::string::const_iterator str_beg = value.begin();
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std::string::const_iterator str_end = value.end();
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bool r = qi::phrase_parse(str_beg,str_end,FLOAT,ascii::space,result);
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return r && (str_beg == str_end);
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}
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bool string2float(const char * value, float & result)
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{
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size_t length = strlen(value);
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if (length < 1 || value == NULL)
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return false;
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const char *iter = value;
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const char *end = value + length;
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bool r = qi::phrase_parse(iter,end,FLOAT,ascii::space,result);
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return r && (iter == end);
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}
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}
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}
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