Store the tags in the heading.

src/parser/document.rs

@@ -54,6 +54,7 @@ pub struct Heading<'s> {
     pub source: &'s str,
     pub stars: usize,
     pub title: Vec<Object<'s>>,
+    pub tags: Vec<&'s str>,
     pub children: Vec<DocumentElement<'s>>,
 }
 
@@ -270,7 +271,7 @@ fn heading<'r, 's>(
     input: OrgSource<'s>,
 ) -> Res<OrgSource<'s>, Heading<'s>> {
     not(|i| context.check_exit_matcher(i))(input)?;
-    let (remaining, (star_count, _ws, title)) = headline(context, input)?;
+    let (remaining, (star_count, _ws, title, heading_tags)) = headline(context, input)?;
     let section_matcher = parser_with_context!(section)(context);
     let heading_matcher = parser_with_context!(heading)(context);
     let (remaining, children) = many0(alt((
@@ -287,6 +288,7 @@ fn heading<'r, 's>(
             source: source.into(),
             stars: star_count,
             title,
+            tags: heading_tags,
             children,
         },
     ))
@@ -296,7 +298,7 @@ fn heading<'r, 's>(
 fn headline<'r, 's>(
     context: Context<'r, 's>,
     input: OrgSource<'s>,
-) -> Res<OrgSource<'s>, (usize, OrgSource<'s>, Vec<Object<'s>>)> {
+) -> Res<OrgSource<'s>, (usize, OrgSource<'s>, Vec<Object<'s>>, Vec<&'s str>)> {
     let parser_context =
         context.with_additional_node(ContextElement::ExitMatcherNode(ExitMatcherNode {
             class: ExitClass::Document,
@@ -313,7 +315,21 @@ fn headline<'r, 's>(
         space0,
         alt((line_ending, eof)),
     ))(input)?;
-    Ok((remaining, (star_count, ws, title)))
+    Ok((
+        remaining,
+        (
+            star_count,
+            ws,
+            title,
+            maybe_tags
+                .map(|(_ws, tags)| {
+                    tags.into_iter()
+                        .map(|single_tag| Into::<&str>::into(single_tag))
+                        .collect()
+                })
+                .unwrap_or(Vec::new()),
+        ),
+    ))
 }
 
 #[cfg_attr(feature = "tracing", tracing::instrument(ret, level = "debug"))]