Compare export type.

src/types/lesser_element.rs

@@ -64,6 +64,7 @@ pub struct ExampleBlock<'s> {
 pub struct ExportBlock<'s> {
     pub source: &'s str,
     pub name: Option<&'s str>,
+    pub export_type: Option<&'s str>,
     pub data: Option<&'s str>,
     pub contents: String,
 }
@@ -266,3 +267,9 @@ impl<'s> Comment<'s> {
         ret
     }
 }
+
+impl<'s> ExportBlock<'s> {
+    pub fn get_export_type(&self) -> Option<String> {
+        self.export_type.map(|s| s.to_uppercase())
+    }
+}