Read a markermd template from a YAML file

Parses a template YAML file and rebuilds the markermd_template object, re-parsing the referenced assignment document to regenerate its AST. All validation is performed by the S7 constructors as objects are built.

Usage

read_template_yaml(path, assignment = NULL, require_ast = FALSE)

Arguments

path

Path to a template .yaml/.yml file.

assignment

Optional path to the assignment document, overriding the source.path stored in the file (useful when the template has been moved).

require_ast

When TRUE, an assignment document that cannot be located is an error (the template editor needs the AST to draw its tree). When FALSE (the default), grading proceeds with an empty AST.

Value

A markermd_template object.