docs/_plugins/warn.rb

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# distributed with this work for additional information
# regarding copyright ownership.  The ASF licenses this file
# to you under the Apache License, Version 2.0 (the
# "License"); you may not use this file except in compliance
# with the License.  You may obtain a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing,
# software distributed under the License is distributed on an
# "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
# KIND, either express or implied.  See the License for the
# specific language governing permissions and limitations
# under the License.

# ---------------------------------------------------------
# Expands a github link shortcut into a proper markdown link
# ---------------------------------------------------------

module Jekyll
  class WarnTag < Liquid::Tag

    def initialize(tag_name, text, tokens)
      super
      @text = text
    end

    def render(context)
    	if @text.to_s == ''
    		@text = "Warning"
    	end

    	@text = @text.strip! || @text if !@text.nil?
    	"<span class=\"label label-danger\">#{@text}</span>"
    end
  end
end

Liquid::Template.register_tag('warn', Jekyll::WarnTag)