Create structure for timestamps.

src/compare/diff.rs

@@ -54,6 +54,7 @@ use crate::parser::Table;
 use crate::parser::TableCell;
 use crate::parser::TableRow;
 use crate::parser::Target;
+use crate::parser::Timestamp;
 use crate::parser::Underline;
 use crate::parser::Verbatim;
 use crate::parser::VerseBlock;
@@ -180,6 +181,7 @@ fn compare_object<'s>(
         Object::StatisticsCookie(obj) => compare_statistics_cookie(source, emacs, obj),
         Object::Subscript(obj) => compare_subscript(source, emacs, obj),
         Object::Superscript(obj) => compare_superscript(source, emacs, obj),
+        Object::Timestamp(obj) => compare_timestamp(source, emacs, obj),
     }
 }
 
@@ -1563,3 +1565,26 @@ fn compare_superscript<'s>(
         children: Vec::new(),
     })
 }
+
+fn compare_timestamp<'s>(
+    source: &'s str,
+    emacs: &'s Token<'s>,
+    rust: &'s Timestamp<'s>,
+) -> Result<DiffResult, Box<dyn std::error::Error>> {
+    let mut this_status = DiffStatus::Good;
+    let emacs_name = "timestamp";
+    if assert_name(emacs, emacs_name).is_err() {
+        this_status = DiffStatus::Bad;
+    }
+
+    if assert_bounds(source, emacs, rust).is_err() {
+        this_status = DiffStatus::Bad;
+    }
+
+    Ok(DiffResult {
+        status: this_status,
+        name: emacs_name.to_owned(),
+        message: None,
+        children: Vec::new(),
+    })
+}