102 lines
3.4 KiB
Ruby
102 lines
3.4 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.to_s
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code = code.sub(/<pre>/, "<pre><code class=\"#{lang} language-#{lang}\" data-lang=\"#{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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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 WithoutHighlighting
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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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add_code_tags(code_wrap(code), lang)
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end
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end
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module WithRouge
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def block_code(code, lang)
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code = "<pre>#{super}</pre>"
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output = "<div class=\"highlight\">"
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output << add_code_tags(code, lang)
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output << "</div>"
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end
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protected
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def rouge_formatter(opts = {})
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Rouge::Formatters::HTML.new(opts.merge(wrap: false))
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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 ||= case @config['highlighter']
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when '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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when 'rouge'
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Class.new(Redcarpet::Render::HTML) do
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require 'rouge'
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require 'rouge/plugins/redcarpet'
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if Rouge.version < '1.3.0'
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abort "Please install Rouge 1.3.0 or greater and try running Jekyll again."
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end
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include Rouge::Plugins::Redcarpet
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include CommonMethods
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include WithRouge
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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 WithoutHighlighting
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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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