Move the Gist tag into its own file

Author: parkr

lib/jekyll-gist.rb

@@ -1,43 +1,7 @@
-require "jekyll/gist/version"
+require "jekyll-gist/version"
+require "jekyll-gist/gist_tag"
 
 module Jekyll
-  class Gist < 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
+  module Gist
   end
 end
-
-Liquid::Template.register_tag('gist', Jekyll::GistTag)

lib/jekyll-gist/gist_tag.rb

@@ -0,0 +1,44 @@
+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)