Parse priority cookie and COMMENT from headlines.

src/types/document.rs

@@ -2,6 +2,8 @@ use super::Element;
 use super::Object;
 use super::Source;
 
+pub type PriorityCookie = u8;
+
 #[derive(Debug)]
 pub struct Document<'s> {
     pub source: &'s str,
@@ -14,10 +16,12 @@ pub struct Heading<'s> {
     pub source: &'s str,
     pub stars: usize,
     pub todo_keyword: Option<(TodoKeywordType, &'s str)>,
-    // TODO: add todo-type enum
+    pub priority_cookie: Option<PriorityCookie>,
     pub title: Vec<Object<'s>>,
     pub tags: Vec<&'s str>,
     pub children: Vec<DocumentElement<'s>>,
+    pub is_comment: bool,
+    pub is_archived: bool,
 }
 
 #[derive(Debug)]

src/types/mod.rs

@@ -7,6 +7,7 @@ mod source;
 pub use document::Document;
 pub use document::DocumentElement;
 pub use document::Heading;
+pub use document::PriorityCookie;
 pub use document::Section;
 pub use document::TodoKeywordType;
 pub use element::Element;