Compare document category.

src/types/document.rs

@@ -1,4 +1,5 @@
 use super::macros::ref_getter;
+use super::macros::simple_getter;
 use super::Element;
 use super::GetStandardProperties;
 use super::Object;
@@ -10,6 +11,7 @@ pub type HeadlineLevel = u16;
 #[derive(Debug)]
 pub struct Document<'s> {
     pub(crate) source: &'s str,
+    pub(crate) category: Option<&'s str>,
     pub(crate) zeroth_section: Option<Section<'s>>,
     pub(crate) children: Vec<Heading<'s>>,
 }
@@ -73,6 +75,7 @@ impl<'s> StandardProperties<'s> for Heading<'s> {
 }
 
 impl<'s> Document<'s> {
+    simple_getter!(get_category, category, Option<&'s str>);
     ref_getter!(get_zeroth_section, zeroth_section, Option<Section<'s>>);
     ref_getter!(get_children, children, Vec<Heading<'s>>);
 }