YAML-cpp null string parsing?

Asked Nov 17 '16 at 16:10

Active Nov 17 '16 at 17:01

Viewed 1,036 times

How do I get this code to parse "" as a string (or recognize it is not an acceptable string)? I am using this YAML-cpp library which I verified treats this as a NodeType::value() and not a NodeType::Null.

std::string getFilepath() {
    YAML::Node nodeValue = node["filepath"];
    if(nodeValue.Type() == YAML::NodeType::value()){
        return nodeValue.as<std::string>(); //Breaks here
    }
    return "";
}

In the .yaml file, the entry is listed as filepath: ""

YAML::NodeTypedoes not include more specific variable types than value() and Null.

Here's the specific error:

terminate called after throwing an instance of
'YAML::TypedBadConversion<std::string>'
what():  bad conversion

The only work-around I have figured out so far is a try-catch block.

edited Nov 17 '16 at 17:01

asked Nov 17 '16 at 16:10

Graeme Rock

It should be ok with that as a string. Can you post your entire YAML file and a complete minimal parsing example? – Jesse Beder Nov 17 '16 at 16:52
The entire YAML file is far too big, and that really is the whole of it. I can post a link to the YAML-cpp library I am using though. – Graeme Rock Nov 17 '16 at 16:58
Can you find a minimal example that exhibits the same behavior? – Jesse Beder Nov 18 '16 at 14:37

YAML-cpp null string parsing?

0 Answers0