Added the :fenced_code Hoedown option.

.travis.yml

@@ -5,7 +5,8 @@ notifications:
 otp_release:
   - 17.0
 before_install:
-  - sudo apt-get install -y pandoc
+  - wget -c https://github.com/jgm/pandoc/releases/download/1.13.2/pandoc-1.13.2-1-amd64.deb
+  - sudo dpkg -i pandoc-1.13.2-1-amd64.deb
   - git clone https://github.com/elixir-lang/elixir
   - cd elixir && make && cd ..
 before_script: "export PATH=`pwd`/elixir/bin:$PATH"

lib/ex_doc/markdown/hoedown.ex

@@ -7,12 +7,14 @@ defmodule ExDoc.Markdown.Hoedown do
   Hoedown specific options:
 
     * `:autolink` - defaults to true
+    * `:fenced_code` - defaults to true
     * `:tables` - Enables Markdown Extra style tables, defaults to true
 
   """
   def to_html(text, opts \\ []) do
     Markdown.to_html(text,
       autolink: Keyword.get(opts, :autolink, true),
+      fenced_code: Keyword.get(opts, :fenced_code, true),
       tables: Keyword.get(opts, :tables, true))
   end
 end

lib/ex_doc/markdown/pandoc.ex

@@ -27,7 +27,7 @@ defmodule ExDoc.Markdown.Pandoc do
 
   defp open_port(path, opts) do
     exe  = :os.find_executable('pandoc')
-    args = ["--from", "markdown",
+    args = ["--from", "markdown+fenced_code_blocks",
             "--to", get_string(opts, :format, :html),
             "--base-header-level", get_string(opts, :header_level, 1),
             path]

lib/ex_doc/retriever.ex

@@ -109,7 +109,7 @@ defmodule ExDoc.Retriever do
       moduledoc: moduledoc,
       docs: docs,
       typespecs: get_types(module),
-      source: source_link(source_path, source_url, line),
+      source: source_link(source_path, source_url, line)
     }
   end