Add comment as a no-op.

src/context/comment.rs

@@ -0,0 +1,23 @@
+use std::path::Path;
+
+use serde::Serialize;
+
+use crate::config::Config;
+use crate::error::CustomError;
+use crate::intermediate::IComment;
+
+#[derive(Debug, Serialize)]
+#[serde(tag = "type")]
+#[serde(rename = "comment")]
+pub(crate) struct RenderComment {}
+
+impl RenderComment {
+    pub(crate) fn new<D: AsRef<Path>, F: AsRef<Path>>(
+        config: &Config,
+        output_directory: D,
+        output_file: F,
+        comment: &IComment,
+    ) -> Result<RenderComment, CustomError> {
+        Ok(RenderComment {})
+    }
+}

src/context/element.rs

@@ -6,6 +6,7 @@ use crate::config::Config;
 use crate::error::CustomError;
 use crate::intermediate::IElement;
 
+use super::comment::RenderComment;
 use super::keyword::RenderKeyword;
 use super::paragraph::RenderParagraph;
 
@@ -14,6 +15,7 @@ use super::paragraph::RenderParagraph;
 pub(crate) enum RenderElement {
     Paragraph(RenderParagraph),
     Keyword(RenderKeyword),
+    Comment(RenderComment),
 }
 
 impl RenderElement {
@@ -36,6 +38,12 @@ impl RenderElement {
                 output_file,
                 inner,
             )?)),
+            IElement::Comment(inner) => Ok(RenderElement::Comment(RenderComment::new(
+                config,
+                output_directory,
+                output_file,
+                inner,
+            )?)),
         }
     }
 }

src/context/mod.rs

@@ -1,4 +1,5 @@
 mod blog_post_page;
+mod comment;
 mod document_element;
 mod element;
 mod global_settings;