147 lines
4.3 KiB
C++
147 lines
4.3 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) 2017 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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// mapnik
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#include <mapnik/util/conversions.hpp>
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#include <mapnik/value/types.hpp>
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#include <algorithm>
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#include <mapnik/warning.hpp>
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MAPNIK_DISABLE_WARNING_PUSH
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#include <mapnik/warning_ignore.hpp>
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#include <boost/spirit/home/x3.hpp>
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MAPNIK_DISABLE_WARNING_POP
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namespace mapnik { namespace util {
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using namespace boost::spirit;
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auto INTEGER = x3::int_type();
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#ifdef BIGINT
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//auto LONGLONG = x3::long_long_type();
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#endif
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auto FLOAT = x3::float_type();
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auto DOUBLE = x3::double_type();
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bool string2bool(std::string const& value, bool& result)
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{
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if (value.empty() || value.size() > 5)
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{
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return false;
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}
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else if (value == "true")
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{
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return result = true;
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}
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else if (value == "false")
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{
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result = false;
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return true;
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}
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std::string val(value);
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std::transform(val.begin(), val.end(), val.begin(), ::tolower);
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if (val == "true" || val == "yes" || val == "1" || val == "on")
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{
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return result = true;
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}
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else if (val == "false" || val == "no" || val == "0" || val == "off")
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{
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result = false;
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return true;
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}
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return false;
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}
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bool string2bool(const char* iter, const char* end, bool& result)
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{
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std::string val(iter, end);
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return string2bool(val, result);
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}
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bool string2int(const char* iter, const char* end, int& result)
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{
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x3::ascii::space_type space;
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bool r = x3::phrase_parse(iter, end, INTEGER, 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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x3::ascii::space_type space;
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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 = x3::phrase_parse(str_beg, str_end, INTEGER, space, result);
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return r && (str_beg == str_end);
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}
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#ifdef BIGINT
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bool string2int(const char* iter, const char* end, mapnik::value_integer& result)
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{
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x3::ascii::space_type space;
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bool r = x3::phrase_parse(iter, end, x3::long_long, space, result);
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return r && (iter == end);
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}
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bool string2int(std::string const& value, mapnik::value_integer& result)
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{
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x3::ascii::space_type space;
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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 = x3::phrase_parse(str_beg, str_end, x3::long_long, space, result);
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return r && (str_beg == str_end);
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}
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#endif
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bool string2double(std::string const& value, double& result)
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{
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x3::ascii::space_type space;
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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 = x3::phrase_parse(str_beg, str_end, DOUBLE, space, result);
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return r && (str_beg == str_end);
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}
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bool string2double(const char* iter, const char* end, double& result)
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{
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x3::ascii::space_type space;
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bool r = x3::phrase_parse(iter, end, DOUBLE, 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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x3::ascii::space_type space;
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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 = x3::phrase_parse(str_beg, str_end, FLOAT, space, result);
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return r && (str_beg == str_end);
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}
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bool string2float(const char* iter, const char* end, float& result)
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{
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x3::ascii::space_type space;
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bool r = x3::phrase_parse(iter, end, FLOAT, space, result);
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return r && (iter == end);
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}
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} // util
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} // mapnik
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