| find_between | Find between a pattern |
| md_ns | Aliased namespace prefix for commonmark |
| protect_curly | Protect curly elements for further processing |
| protect_math | Protect math elements from commonmark's character escape |
| stylesheet | The tinkr stylesheet |
| to_md | Write YAML and XML back to disk as (R)Markdown |
| to_xml | Transform file to XML |
| yarn | R6 class containing XML representation of Markdown |