Contents

module Jekyll
  module Gist
    class GistTag < Liquid::Tag

      def render(context)
        if tag_contents = determine_arguments(@markup.strip)
          gist_id, filename = tag_contents[0], tag_contents[1]
          gist_script_tag(gist_id, filename)
        else
          raise ArgumentError.new <<-eos
  Syntax error in tag 'gist' while parsing the following markup:

    #{@markup}

  Valid syntax:
    for all gists: {% gist user/1234567 %}
  eos
        end
      end

      private

      def determine_arguments(input)
        matched = if input.include?("/")
          input.match(/\A([a-zA-Z0-9\/\-_]+) ?(\S*)\Z/)
        else
          input.match(/\A(\d+) ?(\S*)\Z/)
        end
        [matched[1].strip, matched[2].strip] if matched && matched.length >= 3
      end

      def gist_script_tag(gist_id, filename = nil)
        if filename.empty?
          "<script src=\"https://gist.github.com/#{gist_id}.js\"> </script>"
        else
          "<script src=\"https://gist.github.com/#{gist_id}.js?file=#{filename}\"> </script>"
        end
      end

    end
  end
end

Liquid::Template.register_tag('gist', Jekyll::Gist::GistTag)

Version data entries

2 entries across 2 versions & 1 rubygems

Version	Path
jekyll-gist-1.0.0	lib/jekyll-gist/gist_tag.rb
jekyll-gist-1.0.0.rc1	lib/jekyll-gist/gist_tag.rb