如何打印出 yaml::Node？

Question

I have tried many different ways to do this. I have a bunch of nodes nested under each other eg:

yaml::Node a;
a["foo"] = 3;
yaml::Node b;
b["baz"] = 7;
a["bar"] = b;

I just want to print a to a string so I can see what the yaml looks like. I've tried the following:

a.as<std::string>()

as well as

std:: string str;
a >> str;

The first throws an exception while the second doesn't compile.

What am I missing? This feels like it should be very easy.

Answer 1

You can print Node using Emitter

Emitter emitter;
emitter << node;
std::cout<<"Node :" <<emitter.c_str()<<std::endl;