Method parseFromString

src/Library/UMockdevDeviceDefinition.cpp:334–364

* FIXME (easy): Deduplicate the code here a bit. The parseFrom* methods could be reimplemented to * share the parsing & sorting code. The difference is only the source. Let's create * a low-level parsing method template that will generate one or the other implementation. * Another option is to deduplicate this by creating a shared implementation t

   *               the data only from memory and handle the source name from the specialized methods.
   */
  std::vector<std::unique_ptr<UMockdevDeviceDefinition>> UMockdevDeviceDefinition::parseFromString(
      const std::string& definitions_string, bool sort_by_hierarchy)
  {
    const std::string umockdev_name = "<string>";
    std::vector<std::unique_ptr<UMockdevDeviceDefinition>> definitions;

    try {
      tao::pegtl::string_input<> input(definitions_string, "<string>");
#if TAO_PEGTL_VERSION_MAJOR >= 3
      tao::pegtl::complete_trace<UMockdevParser::grammar, UMockdevParser::actions>(input, definitions, umockdev_name);
#else
      tao::pegtl::parse<UMockdevParser::grammar, UMockdevParser::actions, tao::pegtl::tracer>(input, definitions, umockdev_name);
#endif
    }
    catch (...) {
      USBGUARD_LOG(Error) << "UMockdevDeviceDefinition: " << "<string>" << ": parsing failed at line <LINE>";
      throw;
    }

    const auto lambdaSysfsPathHierarchyCompare = [](const std::unique_ptr<UMockdevDeviceDefinition>& a,
    const std::unique_ptr<UMockdevDeviceDefinition>& b) {
      return (a->getSysfsPath().size() < b->getSysfsPath().size() ||
          b->getSysfsPath() <= b->getSysfsPath());
    };

    if (sort_by_hierarchy) {
      std::sort(definitions.begin(), definitions.end(), lambdaSysfsPathHierarchyCompare);
    }

    return definitions;
  }
}

/* vim: set ts=2 sw=2 et */