81 lines
2.4 KiB
Ruby
81 lines
2.4 KiB
Ruby
# Title: Simple Code Blocks for Jekyll
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# Author: Brandon Mathis http://brandonmathis.com
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# Description: Write codeblocks with semantic HTML5 <figure> and <figcaption> elements and optional syntax highlighting — all with a simple, intuitive interface.
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#
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# Syntax: {% codeblock [title] [url] [link text] %}
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#
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# For syntax highlighting, put a file extension somewhere in the title. examples:
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# {% codeblock file.sh %}
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# {% codeblock Time to be Awesome! (awesome.rb) %}
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#
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# Example:
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#
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# {% codeblock Got pain? painreleif.sh http://site.com/painreleief.sh Download it! %}
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# $ rm -rf ~/PAIN
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# {% endcodeblock %}
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#
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# Output:
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#
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# <figure role=code>
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# <figcaption><span>Got pain? painrelief.sh</span> <a href="http://site.com/painrelief.sh">Download it!</a>
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# <div class="highlight"><pre><code class="sh">
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# -- nicely escaped highlighted code --
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# </code></pre></div>
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# </figure>
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#
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# Example 2 (no syntax highlighting):
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#
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# {% codeblock %}
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# <sarcasm>Ooooh, sarcasm... How original!</sarcasm>
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# {% endcodeblock %}
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#
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# <figure role=code>
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# <pre><code><sarcasm> Ooooh, sarcasm... How original!</sarcasm></code></pre>
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# </figure>
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#
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module Jekyll
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class CodeBlock < Liquid::Block
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CaptionUrlTitle = /(\S[\S\s]*)\s+(https?:\/\/)(\S+)\s+(.+)/i
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CaptionUrl = /(\S[\S\s]*)\s+(https?:\/\/)(\S+)/i
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Caption = /(\S[\S\s]*)/
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def initialize(tag_name, markup, tokens)
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@title = nil
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@caption = nil
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@highlight = true
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if markup =~ CaptionUrlTitle
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@file = $1
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@caption = "<figcaption><span>#{$1}</span><a href='#{$2 + $3}'>#{$4}</a</figcaption>"
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elsif markup =~ CaptionUrl
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@file = $1
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@caption = "<figcaption><span>#{$1}</span><a href='#{$2 + $3}'>link</a</figcaption>"
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elsif markup =~ Caption
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@file = $1
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@caption = "<figcaption><span>#{$1}</span></figcaption>\n"
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end
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if @file =~ /\S[\S\s]*\.(\w+)/
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@filetype = $1
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end
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super
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end
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def render(context)
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output = super
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code = super.join
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source = "<figure role=code>\n"
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source += @caption if @caption
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if @filetype
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source += "{% highlight #{@filetype} %}\n" + code + "\n{% endhighlight %}\n</figure>"
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else
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source += "<pre><code>" + code.gsub!(/</,'<') + "</code></pre>\n</figure>"
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end
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partial = Liquid::Template.parse(source)
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context.stack do
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partial.render(context)
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end
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end
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end
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end
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Liquid::Template.register_tag('codeblock', Jekyll::CodeBlock)
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