This is a tiny bridge module that implements an API function (named
parse_yaml_stream) that tries to parse a YAML stream.
It is intended as a stopgap until the Drupal 8 class Yaml is backported to Drupal 7.
The project also contains a sub-module (named Parse YAML check) that can be used to check if a YAML parser is available.
This is an API module. Only install it if another module requires it.