textlane_html/plugins/slug/
plugin.rs1use textlane_core::{Allocator, Attach, Error, File, Plugin, Transform, Tree, TreeKind};
2
3use crate::actions::hast::autolink::link_headings;
4use crate::actions::hast::slug::slug_hast;
5use crate::models::options::{Autolink, AutolinkOptions, Slug};
6
7impl Plugin for Slug {
8 fn attach(&self, context: &mut Attach) -> Result<(), Error> {
9 context.add_transform(Box::new(self.clone()));
10 Ok(())
11 }
12}
13
14impl Transform for Slug {
15 fn input(&self) -> TreeKind {
16 TreeKind::Hast
17 }
18
19 fn output(&self) -> TreeKind {
20 TreeKind::Hast
21 }
22
23 fn run<'a>(
24 &self,
25 tree: Tree<'a>,
26 _file: &mut File,
27 alloc: &'a Allocator,
28 ) -> Result<Tree<'a>, Error> {
29 match tree {
30 Tree::Hast(mut node) => {
31 slug_hast(&mut node, self, alloc);
32 match &self.autolink {
33 Some(Autolink::Enabled(true)) => {
34 link_headings(&mut node, &AutolinkOptions::default(), alloc)?;
35 }
36 Some(Autolink::Options(options)) => {
37 link_headings(&mut node, options, alloc)?
38 }
39 Some(Autolink::Enabled(false)) | None => {}
40 }
41 Ok(Tree::Hast(node))
42 }
43 _ => Err(Error::new("invalid-stage", "`html.slug` takes hast")),
44 }
45 }
46}