Trait `HeadingAdapter`

trait HeadingAdapter: Send + Sync

Implement this adapter for creating a plugin for custom headings (h1, h2, etc.). The enter method defines what's rendered prior the AST content of the heading while the exit method defines what's rendered after it. Both methods provide access to a HeadingMeta struct and leave the AST content of the heading unchanged.

Required Methods

fn enter(self: &Self, output: &mut dyn Write, heading: &HeadingMeta, sourcepos: Option<Sourcepos>) -> io::Result<()>: Render the opening tag.
fn exit(self: &Self, output: &mut dyn Write, heading: &HeadingMeta) -> io::Result<()>: Render the closing tag.