alert and callout plugins

_plugins/alert.rb

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+# Source: https://stackoverflow.com/questions/19169849/how-to-get-markdown-processed-content-in-jekyll-tag-plugin
+
+module Jekyll
+  module Tags
+    class AlertTag < Liquid::Block
+      def initialize(tag_name, type, tokens)
+        super
+        type.strip!
+        if %w(info danger warning).include?(type)
+          @type = type
+        else
+          puts "#{type} alert not supported. Defaulting to info"
+          @type = "info"
+        end
+      end
+
+      def render(context)
+        site = context.registers[:site]
+        converter = site.find_converter_instance(::Jekyll::Converters::Markdown)
+        output = converter.convert(super(context))
+        "<div class=\"alert alert-#{@type}\">#{output}</div>"
+      end
+    end
+  end
+end
+
+Liquid::Template.register_tag('alert', Jekyll::Tags::AlertTag)

_plugins/callout.rb

@@ -0,0 +1,27 @@
+# Source: https://stackoverflow.com/questions/19169849/how-to-get-markdown-processed-content-in-jekyll-tag-plugin
+
+module Jekyll
+  module Tags
+    class CalloutTag < Liquid::Block
+      def initialize(tag_name, type, tokens)
+        super
+        type.strip!
+        if %w(info danger warning).include?(type)
+          @type = type
+        else
+          puts "#{type} callout not supported. Defaulting to info"
+          @type = "info"
+        end
+      end
+
+      def render(context)
+        site = context.registers[:site]
+        converter = site.find_converter_instance(::Jekyll::Converters::Markdown)
+        output = converter.convert(super(context))
+        "<div class=\"callout callout-#{@type}\">#{output}</div>"
+      end
+    end
+  end
+end
+
+Liquid::Template.register_tag('callout', Jekyll::Tags::CalloutTag)