File Metrics for YAML

This document outlines the definition of file metrics for YAML.

max_nesting_level

The max_nesting_level metric quantifies the deepest level of array (annotated with -, not [...]) and object nesting within a YAML file.

Examples: max_nesting_level is:

0 for name: "yaml" and empty files.
2 for
```
name:
    - firstname: "Hans"
```
0 for
```
name: |
    firstname
    lastname
```

lines_of_code