From 7061d11c548542590532958e50384ffa3e971837 Mon Sep 17 00:00:00 2001
From: Garen Torikian <gjtorikian@gmail.com>
Date: Tue, 1 Apr 2014 13:18:40 -0700
Subject: [PATCH 1/3] Allow for custom filters

---
 lib/jekyll-html-pipeline.rb       |  7 ++++++-
 test/support/new_pipeline.rb      | 15 +++++++++++++++
 test/test_jekyll_html_pipeline.rb |  9 +++++++++
 3 files changed, 30 insertions(+), 1 deletion(-)
 create mode 100644 test/support/new_pipeline.rb

diff --git a/lib/jekyll-html-pipeline.rb b/lib/jekyll-html-pipeline.rb
index 8b357dc..23f0d1d 100644
--- a/lib/jekyll-html-pipeline.rb
+++ b/lib/jekyll-html-pipeline.rb
@@ -35,7 +35,12 @@ def setup
               key = filter_key(f)
               begin
                 filter = HTML::Pipeline.constants.find { |c| c.downcase == key }
-                HTML::Pipeline.const_get(filter)
+                # probably a custom filter
+                if filter.nil?
+                  Jekyll::Converters.const_get(f)
+                else
+                  HTML::Pipeline.const_get(filter)
+                end
               rescue Exception => e
                 raise LoadError.new(e)
               end
diff --git a/test/support/new_pipeline.rb b/test/support/new_pipeline.rb
new file mode 100644
index 0000000..ddc9a42
--- /dev/null
+++ b/test/support/new_pipeline.rb
@@ -0,0 +1,15 @@
+require "html/pipeline"
+
+class HelpMarkdownFilter < HTML::Pipeline::MarkdownFilter
+
+  def call
+    html = super
+
+    format_callout!(html)
+  end
+
+  def format_callout!(html)
+    html.gsub!(/(?:<p>)?{{#(tip|warning|error)}}(?:<\/p>)?/,  '<div class="alert \1">')
+    html.gsub!(/(?:<p>)?{{\/(tip|warning|error)}}(?:<\/p>)?/, '</div>')
+  end
+end
diff --git a/test/test_jekyll_html_pipeline.rb b/test/test_jekyll_html_pipeline.rb
index 8bc493a..9ae8f28 100644
--- a/test/test_jekyll_html_pipeline.rb
+++ b/test/test_jekyll_html_pipeline.rb
@@ -37,5 +37,14 @@ class HTMLPipeline < Test::Unit::TestCase
       markdown = Jekyll::Converters::Markdown.new override
       assert_raise(ArgumentError) { markdown.convert(':trollface:') }
     end
+
+    should "work for custom filters" do
+      require 'support/new_pipeline'
+      override = @config.dup
+      override['html_pipeline']['filters'] = ['HelpMarkdownFilter']
+      markdown = Jekyll::Converters::Markdown.new override
+      text = "\n {{#tip}}\n **Tip**: Wow! \n {{/tip}}"
+      assert_equal "<div class=\"alert tip\"><br>\n <strong>Tip</strong>: Wow! <br>\n </div>", markdown.convert(text)
+    end
   end
 end

From 01edfa2dbbf395d5f646d10e15d4b1c7d86bc0ba Mon Sep 17 00:00:00 2001
From: Garen Torikian <gjtorikian@gmail.com>
Date: Tue, 1 Apr 2014 13:19:43 -0700
Subject: [PATCH 2/3] Update README on custom filters

---
 README.md | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/README.md b/README.md
index 4bb492a..015956a 100644
--- a/README.md
+++ b/README.md
@@ -54,3 +54,9 @@ html_pipeline:
 
 Keep in mind that [filter dependencies are not bundled](https://github.com/jch/html-pipeline#dependencies),
 so you'll need to add these in yourself.
+
+## Custom filters
+
+Custom filters can be designed [the same as in HTML::Pipeline](https://github.com/jch/html-pipeline#extending).
+
+Check out [the test filter](./support/new_pipeline.rb) for an example.

From bff5c450e4b4193e1a13b2167758d530d938cf27 Mon Sep 17 00:00:00 2001
From: Garen Torikian <gjtorikian@gmail.com>
Date: Tue, 1 Apr 2014 13:20:31 -0700
Subject: [PATCH 3/3] Update broken link

---
 README.md | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/README.md b/README.md
index 015956a..ddd0e72 100644
--- a/README.md
+++ b/README.md
@@ -59,4 +59,4 @@ so you'll need to add these in yourself.
 
 Custom filters can be designed [the same as in HTML::Pipeline](https://github.com/jch/html-pipeline#extending).
 
-Check out [the test filter](./support/new_pipeline.rb) for an example.
+Check out [the test filter](./test/support/new_pipeline.rb) for an example.