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code_block.rb
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code_block.rb
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# Title: Simple Code Blocks for Jekyll
# Author: Brandon Mathis http://brandonmathis.com
# Description: Write codeblocks with semantic HTML5 <figure> and <figcaption> elements and optional syntax highlighting — all with a simple, intuitive interface.
#
# Syntax:
# {% codeblock [title] [url] [link text] %}
# code snippet
# {% endcodeblock %}
#
# For syntax highlighting, put a file extension somewhere in the title. examples:
# {% codeblock file.sh %}
# code snippet
# {% endcodeblock %}
#
# {% codeblock Time to be Awesome! (awesome.rb) %}
# code snippet
# {% endcodeblock %}
#
# Example:
#
# {% codeblock Got pain? painreleif.sh http://site.com/painreleief.sh Download it! %}
# $ rm -rf ~/PAIN
# {% endcodeblock %}
#
# Output:
#
# <figure class='code'>
# <figcaption><span>Got pain? painrelief.sh</span> <a href="http://site.com/painrelief.sh">Download it!</a>
# <div class="highlight"><pre><code class="sh">
# -- nicely escaped highlighted code --
# </code></pre></div>
# </figure>
#
# Example 2 (no syntax highlighting):
#
# {% codeblock %}
# <sarcasm>Ooooh, sarcasm... How original!</sarcasm>
# {% endcodeblock %}
#
# <figure class='code'>
# <pre><code><sarcasm> Ooooh, sarcasm... How original!</sarcasm></code></pre>
# </figure>
#
require './plugins/pygments_code'
module Jekyll
class CodeBlock < Liquid::Block
TitleUrlLinkText = /(\S[\S\s]*)\s+(https?:\/\/\S+|\/\S+)\s*(.+)?/i
Title = /(\S[\S\s]*)/
def initialize(tag_name, markup, tokens)
@markup = markup
clean_markup = Octopress::Pygments.clean_markup(markup)
if clean_markup =~ TitleUrlLinkText
@options = {
title: $1,
url: $2,
link_text: $3
}
elsif clean_markup =~ Title
@options = { title: $1 }
end
# grab lang from filename in title
if @options[:title] =~ /\S[\S\s]*\w+\.(\w+)/ && @options[:lang].nil?
@options[:lang] = $1
end
@options = Octopress::Pygments.parse_markup(markup, @options)
super
end
def render(context)
begin
code = super.strip
code = Octopress::Pygments.highlight(code, @options)
code = context['pygments_prefix'] + code if context['pygments_prefix']
code = code + context['pygments_suffix'] if context['pygments_suffix']
code
rescue MentosError => e
markup = "{% codeblock #{@markup} %}"
Octopress::Pygments.highlight_failed(e, "{% codeblock [lang:language] [title] [url] [link text] [start:#] [mark:#,#-#] [linenos:false] %}\ncode\n{% endcodeblock %}", markup, code)
end
end
end
end
Liquid::Template.register_tag('codeblock', Jekyll::CodeBlock)