YAML Debug - an assistive code diagnostic tool for web developers
http://debug.yaml.de/

… an assistive tool for web developers, that allows you to quickly review code quality and semantic structure of any website (particularly those based on YAML) as well as testing it against common oversights.

OGDL is a structured textual format that represents information in the form of graphs, where the nodes are strings and the arcs or edges are spaces or indentation.

anti-meiert