Create structure for LaTeX fragments.

src/parser/object.rs

@@ -16,6 +16,7 @@ pub enum Object<'s> {
     AngleLink(AngleLink<'s>),
     OrgMacro(OrgMacro<'s>),
     Entity(Entity<'s>),
+    LatexFragment(LatexFragment<'s>),
 }
 
 #[derive(Debug, PartialEq)]
@@ -103,6 +104,12 @@ pub struct Entity<'s> {
     pub entity_name: &'s str,
 }
 
+#[derive(Debug, PartialEq)]
+pub struct LatexFragment<'s> {
+    pub source: &'s str,
+    pub entity_name: &'s str,
+}
+
 impl<'s> Source<'s> for Object<'s> {
     fn get_source(&'s self) -> &'s str {
         match self {
@@ -120,6 +127,7 @@ impl<'s> Source<'s> for Object<'s> {
             Object::AngleLink(obj) => obj.source,
             Object::OrgMacro(obj) => obj.source,
             Object::Entity(obj) => obj.source,
+            Object::LatexFragment(obj) => obj.source,
         }
     }
 }
@@ -201,3 +209,9 @@ impl<'s> Source<'s> for Entity<'s> {
         self.source
     }
 }
+
+impl<'s> Source<'s> for LatexFragment<'s> {
+    fn get_source(&'s self) -> &'s str {
+        self.source
+    }
+}