Implement the new fields for lesser block.

src/types/lesser_element.rs

@@ -50,6 +50,8 @@ pub struct VerseBlock<'s> {
     pub affiliated_keywords: AffiliatedKeywords<'s>,
     pub data: Option<&'s str>,
     pub children: Vec<Object<'s>>,
+    pub contents: &'s str,
+    pub post_blank: Option<&'s str>,
 }
 
 #[derive(Debug)]
@@ -57,6 +59,7 @@ pub struct CommentBlock<'s> {
     pub source: &'s str,
     pub affiliated_keywords: AffiliatedKeywords<'s>,
     pub contents: &'s str,
+    pub post_blank: Option<&'s str>,
 }
 
 pub type CharOffsetInLine = u16;
@@ -80,6 +83,7 @@ pub struct ExampleBlock<'s> {
     pub use_labels: bool,
     pub label_format: Option<&'s str>,
     pub value: &'s str,
+    pub post_blank: Option<&'s str>,
 }
 
 #[derive(Debug)]
@@ -89,6 +93,7 @@ pub struct ExportBlock<'s> {
     pub export_type: Option<&'s str>,
     pub data: Option<&'s str>,
     pub value: &'s str,
+    pub post_blank: Option<&'s str>,
 }
 
 #[derive(Debug)]
@@ -104,6 +109,7 @@ pub struct SrcBlock<'s> {
     pub use_labels: bool,
     pub label_format: Option<&'s str>,
     pub value: &'s str,
+    pub post_blank: Option<&'s str>,
 }
 
 #[derive(Debug)]
@@ -258,11 +264,15 @@ impl<'s> StandardProperties<'s> for VerseBlock<'s> {
     }
 
     fn get_contents<'b>(&'b self) -> Option<&'s str> {
-        todo!()
+        Some(self.contents)
     }
 
     fn get_post_blank(&self) -> PostBlank {
-        todo!()
+        self.post_blank
+            .map(|text| text.lines().count())
+            .unwrap_or(0)
+            .try_into()
+            .expect("Too much post-blank to fit into a PostBlank.")
     }
 }
 impl<'s> StandardProperties<'s> for CommentBlock<'s> {
@@ -271,11 +281,15 @@ impl<'s> StandardProperties<'s> for CommentBlock<'s> {
     }
 
     fn get_contents<'b>(&'b self) -> Option<&'s str> {
-        todo!()
+        None
     }
 
     fn get_post_blank(&self) -> PostBlank {
-        todo!()
+        self.post_blank
+            .map(|text| text.lines().count())
+            .unwrap_or(0)
+            .try_into()
+            .expect("Too much post-blank to fit into a PostBlank.")
     }
 }
 impl<'s> StandardProperties<'s> for ExampleBlock<'s> {
@@ -284,11 +298,15 @@ impl<'s> StandardProperties<'s> for ExampleBlock<'s> {
     }
 
     fn get_contents<'b>(&'b self) -> Option<&'s str> {
-        todo!()
+        None
     }
 
     fn get_post_blank(&self) -> PostBlank {
-        todo!()
+        self.post_blank
+            .map(|text| text.lines().count())
+            .unwrap_or(0)
+            .try_into()
+            .expect("Too much post-blank to fit into a PostBlank.")
     }
 }
 impl<'s> StandardProperties<'s> for ExportBlock<'s> {
@@ -297,11 +315,15 @@ impl<'s> StandardProperties<'s> for ExportBlock<'s> {
     }
 
     fn get_contents<'b>(&'b self) -> Option<&'s str> {
-        todo!()
+        None
     }
 
     fn get_post_blank(&self) -> PostBlank {
-        todo!()
+        self.post_blank
+            .map(|text| text.lines().count())
+            .unwrap_or(0)
+            .try_into()
+            .expect("Too much post-blank to fit into a PostBlank.")
     }
 }
 impl<'s> StandardProperties<'s> for SrcBlock<'s> {
@@ -310,11 +332,15 @@ impl<'s> StandardProperties<'s> for SrcBlock<'s> {
     }
 
     fn get_contents<'b>(&'b self) -> Option<&'s str> {
-        todo!()
+        None
     }
 
     fn get_post_blank(&self) -> PostBlank {
-        todo!()
+        self.post_blank
+            .map(|text| text.lines().count())
+            .unwrap_or(0)
+            .try_into()
+            .expect("Too much post-blank to fit into a PostBlank.")
     }
 }