71 lines
2.3 KiB
Ruby
71 lines
2.3 KiB
Ruby
module Jekyll
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module Converters
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class Markdown
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class RedcarpetParser
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module CommonMethods
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def add_code_tags(code, lang)
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code = code.sub(/<pre>/, "<pre><code class=\"#{lang} language-#{lang}\">")
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code = code.sub(/<\/pre>/,"</code></pre>")
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end
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end
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module WithPygments
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include CommonMethods
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def block_code(code, lang)
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require 'pygments'
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lang = lang && lang.split.first || "text"
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output = add_code_tags(
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Pygments.highlight(code, :lexer => lang, :options => { :encoding => 'utf-8' }),
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lang
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)
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end
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end
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module WithoutPygments
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require 'cgi'
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include CommonMethods
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def code_wrap(code)
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"<div class=\"highlight\"><pre>#{CGI::escapeHTML(code)}</pre></div>"
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end
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def block_code(code, lang)
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lang = lang && lang.split.first || "text"
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output = add_code_tags(code_wrap(code), lang)
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end
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end
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def initialize(config)
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require 'redcarpet'
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@config = config
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@redcarpet_extensions = {}
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@config['redcarpet']['extensions'].each { |e| @redcarpet_extensions[e.to_sym] = true }
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@renderer ||= if @config['pygments']
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Class.new(Redcarpet::Render::HTML) do
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include WithPygments
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end
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else
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Class.new(Redcarpet::Render::HTML) do
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include WithoutPygments
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end
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end
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rescue LoadError
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STDERR.puts 'You are missing a library required for Markdown. Please run:'
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STDERR.puts ' $ [sudo] gem install redcarpet'
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raise FatalException.new("Missing dependency: redcarpet")
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end
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def convert(content)
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@redcarpet_extensions[:fenced_code_blocks] = !@redcarpet_extensions[:no_fenced_code_blocks]
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@renderer.send :include, Redcarpet::Render::SmartyPants if @redcarpet_extensions[:smart]
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markdown = Redcarpet::Markdown.new(@renderer.new(@redcarpet_extensions), @redcarpet_extensions)
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markdown.render(content)
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end
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end
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end
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end
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end
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