Program Listing for File example_helper.hpp

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// Copyright (c) 2024 Allied Vision Technologies GmbH. All rights reserved.
//
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//    * Redistributions in binary form must reproduce the above copyright
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#pragma once

#include <string>

inline std::string build_topic_path(std::string node_namespace, std::string topic)
{
  auto first = node_namespace.find_first_not_of("/");
  auto last = node_namespace.find_last_not_of("/");
  if (first == std::string::npos) {
    node_namespace = "";
  } else {
    node_namespace = node_namespace.substr(first, last + 1);
  }

  first = topic.find_first_not_of("/");
  last = topic.find_last_not_of("/");
  topic = "/" + topic.substr(first, last + 1);

  return node_namespace.length() == 0 ? topic : "/" + node_namespace + topic;
}