Parse YAML Files in C++

Question

I want a simple tutorial to show me to load a yaml file and parse the data. Expat style would be great but any solution that actually shows me the data in some form would be useful.

So far I ran multiple test in yaml-0.1.1 source for C and I either get an error, no output what so ever or in run-emitter.c case. It reads in the yaml file and prints it to STDOUT, it does not produce the text via libyaml functions/structs. In the cases with an error I don't know if it was bc the file was bad or my build is incorrect (I didn't modify anything...) The file was copied from yaml.org

Can anyone point me to a tutorial? (I googled for at least 30mins reading anything that looked relevant) or a name of a lib that has a good tutorial or example. Maybe you can tell me which libyaml test loads in files and does something with it or why I gotten errors. This document does not explain how to use the file, only how to load it.

http://pyyaml.org/wiki/LibYAML#Documentation

question from:https://stackoverflow.com/questions/365155/parse-yaml-files-in-c

Answer 1

Try yaml-cpp (as suggested by this question) for a C++ parser.

Disclosure: I'm the author.

Example syntax (from the Tutorial):

YAML::Node config = YAML::LoadFile("config.yaml");

if (config["lastLogin"]) {
  std::cout << "Last logged in: " << config["lastLogin"].as<DateTime>() << "
";
}

const std::string username = config["username"].as<std::string>();
const std::string password = config["password"].as<std::string>();
login(username, password);
config["lastLogin"] = getCurrentDateTime();

std::ofstream fout("config.yaml");
fout << config;