xml_configuration_parsing.h

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// Copyright (c) 2021 Pilz GmbH & Co. KG
//
// This program is free software: you can redistribute it and/or modify
// it under the terms of the GNU Lesser General Public License as published by
// the Free Software Foundation, either version 3 of the License, or
// (at your option) any later version.
//
// This program is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
// GNU Lesser General Public License for more details.
//
// You should have received a copy of the GNU Lesser General Public License
// along with this program.  If not, see <https://www.gnu.org/licenses/>.

#include <string>
#include <stdexcept>

#include <tinyxml2.h>

#include "psen_scan_v2_standalone/configuration/zoneset_configuration.h"

#ifndef PSEN_SCAN_V2_XML_CONFIGURATION_PARSER_H
#define PSEN_SCAN_V2_XML_CONFIGURATION_PARSER_H

namespace psen_scan_v2_standalone
{
namespace configuration
{
namespace xml_config_parsing
{
class XMLConfigurationParserException : public std::runtime_error
{
public:
  XMLConfigurationParserException(const std::string& msg) : std::runtime_error(msg)
  {
  }
};

unsigned long ro_value_to_uint(const std::string& ro_value)
{
  auto string_cpy = ro_value;
  std::swap(string_cpy[0], string_cpy[2]);
  std::swap(string_cpy[1], string_cpy[3]);
  return std::stoul(string_cpy, nullptr, 16);
}

std::vector<unsigned long> ro_string_to_vec(const std::string& ro_string)
{
  std::vector<unsigned long> vec;

  try
  {
    for (size_t i = 0; i < ro_string.length(); i += 4)
    {
      const auto substr = ro_string.substr(i, 4);
      if (substr.length() == 4)
      {
        vec.push_back(ro_value_to_uint(substr));
      }
    }
  }
  catch (const std::exception& e)
  {
    throw XMLConfigurationParserException(e.what());
  }

  return vec;
}

ZoneSetConfiguration parseFile(const char* filename);
ZoneSetConfiguration parseString(const char* xml);

}  // namespace xml_config_parsing
}  // namespace configuration
}  // namespace psen_scan_v2_standalone

#endif  // PSEN_SCAN_V2_XML_CONFIGURATION_PARSER_H