First experiment with building a new renderer.

src/book/mdbook.rs

@@ -8,7 +8,7 @@ use std::process::Command;
 
 use {BookConfig, BookItem, theme, parse, utils};
 use book::BookItems;
-use renderer::{Renderer, HtmlHandlebars};
+use renderer::{Renderer, HtmlHandlebars, Pandoc};
 
 
 pub struct MDBook {
@@ -38,7 +38,7 @@ impl MDBook {
                         .set_src(&root.join("src"))
                         .set_dest(&root.join("book"))
                         .to_owned(),
-            renderer: Box::new(HtmlHandlebars::new()),
+            renderer: Box::new(Pandoc::new()),
         }
     }
 

src/renderer/mod.rs

@@ -1,5 +1,7 @@
 pub use self::renderer::Renderer;
 pub use self::html_handlebars::HtmlHandlebars;
+pub use self::pandoc::Pandoc;
 
 pub mod renderer;
-mod html_handlebars;
+mod pandoc;
+mod html_handlebars;

src/renderer/pandoc/mod.rs

@@ -0,0 +1,36 @@
+use renderer::Renderer;
+use book::MDBook;
+use book::bookitem::BookItem;
+
+use std::error::Error;
+
+enum PandocOutput {
+    Epub,
+    Pdf
+}
+
+pub struct Pandoc {
+    output: PandocOutput
+}
+
+impl Pandoc {
+  pub fn new() -> Pandoc {
+    Pandoc { output: PandocOutput::Epub }
+  }
+}
+
+impl Renderer for Pandoc {
+    fn render(&self, book: &MDBook) -> Result<(), Box<Error>> {
+
+        for item in book.iter() {
+            match *item {
+                BookItem::Chapter(ref title, _) => {
+                    println!("{}", title)
+                },
+                _ => println!("Something I don't understand")
+            }
+        }
+
+        Ok(())
+    }
+}