inline fixup

src/inline.rs

@@ -391,19 +391,20 @@ impl<I: Iterator<Item = char> + Clone> Parser<I> {
     }
 
     fn parse_container(&mut self, first: &lex::Token) -> Option<Event> {
-        Delim::from_token(first.kind).map(|(delim, dir)| {
+        Delim::from_token(first.kind).and_then(|(delim, dir)| {
             self.openers
                 .iter()
                 .rposition(|(d, _)| {
                     *d == delim || matches!((d, delim), (Delim::Span(..), Delim::Span(..)))
                 })
                 .and_then(|o| {
-                    if matches!(dir, Dir::Close | Dir::Both) {
+                    if !dir.can_close() {
+                        return None;
+                    }
                     let (d, e) = self.openers[o];
                     let e_attr = e;
                     let e_opener = e + 1;
-                        let inner_span =
-                            Span::new(self.events[e_opener].span.end(), self.span.start());
+                    let inner_span = Span::new(self.events[e_opener].span.end(), self.span.start());
                     let mut event_closer = match Container::try_from(d) {
                         Ok(cont) => {
                             self.events[e_opener].kind = EventKind::Enter(cont);
@@ -466,11 +467,11 @@ impl<I: Iterator<Item = char> + Clone> Parser<I> {
                         }
                     }
                     event_closer
-                    } else {
-                        None
-                    }
                 })
-                .unwrap_or_else(|| {
+                .or_else(|| {
+                    if !dir.can_open() {
+                        return None;
+                    }
                     self.openers.push((delim, self.events.len()));
                     // push dummy event in case attributes are encountered after closing delimiter
                     self.events.push_back(Event {
@@ -478,10 +479,10 @@ impl<I: Iterator<Item = char> + Clone> Parser<I> {
                         span: Span::empty_at(self.span.start()),
                     });
                     // use str for now, replace if closed later
-                    Event {
+                    Some(Event {
                         kind: EventKind::Str,
                         span: self.span,
-                    }
+                    })
                 })
         })
     }
@@ -572,12 +573,23 @@ enum Delim {
     Insert,
 }
 
+#[derive(Clone, Copy)]
 enum Dir {
     Open,
     Close,
     Both,
 }
 
+impl Dir {
+    fn can_open(self) -> bool {
+        matches!(self, Dir::Open | Dir::Both)
+    }
+
+    fn can_close(self) -> bool {
+        matches!(self, Dir::Close | Dir::Both)
+    }
+}
+
 impl Delim {
     fn from_token(kind: lex::Kind) -> Option<(Self, Dir)> {
         use Delim::*;