Removed an unused function

src/book/book.rs

@@ -88,7 +88,7 @@ impl Chapter {
 ///
 /// You need to pass in the book's source directory because all the links in
 /// `SUMMARY.md` give the chapter locations relative to it.
-pub fn load_book_from_disk<P: AsRef<Path>>(summary: &Summary, src_dir: P) -> Result<Book> {
+fn load_book_from_disk<P: AsRef<Path>>(summary: &Summary, src_dir: P) -> Result<Book> {
     debug!("[*] Loading the book from disk");
     let src_dir = src_dir.as_ref();
 
@@ -229,9 +229,9 @@ And here is some more text.
         let mut second = Link::new("Nested Chapter 1", &second_path);
         second.number = Some(SectionNumber(vec![1, 2]));
 
-        root.push_item(second.clone());
+        root.nested_items.push(second.clone().into());
-        root.push_item(SummaryItem::Separator);
+        root.nested_items.push(SummaryItem::Separator);
-        root.push_item(second.clone());
+        root.nested_items.push(second.clone().into());
 
         (root, temp_dir)
     }

src/book/mod.rs

@@ -1,7 +1,10 @@
-pub mod book;
+//! The internal representation of a `Book`.
-pub mod summary;
 
-use self::book::{load_book, Book, BookItem, BookItems};
+mod book;
+mod summary;
+
+pub use self::book::{load_book, Book, BookItem, BookItems, Chapter};
+pub use self::summary::SectionNumber;
 
 use std::path::{Path, PathBuf};
 use std::fs::{self, File};
@@ -19,6 +22,9 @@ use config::tomlconfig::TomlConfig;
 use config::htmlconfig::HtmlConfig;
 use config::jsonconfig::JsonConfig;
 
+
+/// A helper for managing the `Book`, its configuration, and the rendering 
+/// process.
 pub struct MDBook {
     config: BookConfig,
 
@@ -85,7 +91,7 @@ impl MDBook {
     /// ```no_run
     /// # extern crate mdbook;
     /// # use mdbook::MDBook;
-    /// # use mdbook::book::book::BookItem;
+    /// # use mdbook::book::BookItem;
     /// # #[allow(unused_variables)]
     /// # fn main() {
     /// # let book = MDBook::new("mybook");

src/book/summary.rs

@@ -86,11 +86,6 @@ impl Link {
             nested_items: Vec::new(),
         }
     }
-
-    /// Add an item to this link's `nested_items`.
-    pub fn push_item<I: Into<SummaryItem>>(&mut self, item: I) {
-        self.nested_items.push(item.into());
-    }
 }
 
 impl Default for Link {

src/lib.rs

@@ -99,7 +99,7 @@ pub mod theme;
 pub mod utils;
 
 pub use book::MDBook;
-pub use book::book::Book;
+pub use book::Book;
 pub use renderer::Renderer;
 
 /// The error types used through out this crate.

src/renderer/html_handlebars/hbs_renderer.rs

@@ -4,7 +4,7 @@ use renderer::Renderer;
 use book::MDBook;
 use config::PlaypenConfig;
 use theme::{self, Theme, playpen_editor};
-use book::book::{BookItem, Chapter};
+use book::{BookItem, Chapter};
 use utils;
 use errors::*;
 use regex::{Regex, Captures};

tests/loading.rs

@@ -5,7 +5,7 @@ extern crate env_logger;
 
 use std::path::PathBuf;
 
-use mdbook::book::book::load_book;
+use mdbook::book::load_book;
 
 
 #[test]