Checks if a markdown header with a certain level exists. If not, generates a feedback message. If yes, zooms in on the entire header section.
check_header(state, level, index = 1, not_found_msg = NULL, append = TRUE)
| state | the state to start from. |
|---|---|
| level | the level of the header to check |
| index | which h<level> header to check |
| not_found_msg | If specified, this overrides the automatically generated message in case not enough headers of the specified level were found. |
| append | Whether or not to append the feedback to feedback built in previous states |
A state that zooms in on the section under the header until the next same-level header.