List label styling

2 files changed, 7 insertions, 1 deletions

diff --git a/src/parse/scanner.rs b/src/parse/scanner.rs
index 81fa4fba..685503c3 100644
--- a/src/parse/scanner.rs
+++ b/src/parse/scanner.rs
@@ -90,6 +90,12 @@ impl<'s> Scanner<'s> {
         self.rest().chars().next()
     }
 
+    /// Get the nth-previous eaten char.
+    #[inline]
+    pub fn prev(&self, n: usize) -> Option<char> {
+        self.eaten().chars().nth_back(n)
+    }
+
     /// Checks whether the next char fulfills a condition.
     ///
     /// Returns `default` if there is no next char.
diff --git a/src/parse/tokens.rs b/src/parse/tokens.rs
index ca2cb74a..e88b49f9 100644
--- a/src/parse/tokens.rs
+++ b/src/parse/tokens.rs
@@ -538,7 +538,7 @@ impl<'s> Tokens<'s> {
 
     fn in_word(&self) -> bool {
         let alphanumeric = |c: Option<char>| c.map_or(false, |c| c.is_alphanumeric());
-        let prev = self.s.get(.. self.s.last_index()).chars().next_back();
+        let prev = self.s.prev(1);
         let next = self.s.peek();
         alphanumeric(prev) && alphanumeric(next)
     }