require "liquid"
require "jekyll"
require "nokogiri"

module Jekyll
	module LynnesbianDotSpaceFilters
		def summarise(excerpt)
			doc = Nokogiri::HTML.fragment(excerpt) do |config|
				config.noblanks
			end

			first_paragraph = doc.xpath(".//p")[0]
			if first_paragraph.is_a?(NilClass) then
				return "Couldn't generate a summary for this post."
			else
				return first_paragraph.text
			end
		end
	end
end


Liquid::Template.register_filter(Jekyll::LynnesbianDotSpaceFilters)