mirror of
https://github.com/tabler/tabler.git
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99 lines
3.3 KiB
Ruby
99 lines
3.3 KiB
Ruby
require 'htmlbeautifier'
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def render_rouge(code, lang, line_numbers = false)
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require 'rouge'
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formatter = Rouge::Formatters::HTML.new(line_numbers: line_numbers, wrap: false)
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lexer = Rouge::Lexer.find_fancy(lang, code) || Rouge::Lexers::PlainText
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code = HtmlBeautifier.beautify(code, indent: "\t")
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code = code.gsub(/<hide>.*?<\/hide>/, "")
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code = formatter.format(lexer.lex(code))
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code = code.strip.gsub /^[\t\s]*$\n/, ''
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code = code.gsub /\t/, "\s\s\s"
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code = code.gsub "javascript:void(0)", "#"
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code = code.gsub "../", "./"
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"<div class=\"highlight\"><pre>#{code}</pre></div>"
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end
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def add_code_tag(code, lang)
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code = code.sub(/<pre>\n*/, '<pre><code class="language-' + lang.to_s.gsub("+", "-") + '" data-lang="' + lang.to_s + '">')
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code = code.sub(/\n*<\/pre>/, "</code></pre>")
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code.strip
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end
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module Jekyll
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class ExampleBlock < Liquid::Block
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include Liquid::StandardFilters
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SYNTAX = /^([a-zA-Z0-9.+#-]+)((\s+[\w-]+(=((\w|[0-9_-])+|"([0-9]+\s)*[0-9]+"))?)*)$/
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def initialize(tag_name, markup, tokens)
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super
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if markup.strip == ""
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markup = 'html'
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end
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if markup.strip =~ SYNTAX
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@lang = $1.downcase
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@options = {}
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if defined?($2) && $2 != ''
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# Split along 3 possible forms -- key="<quoted list>", key=value, or key
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$2.scan(/(?:[\w-]+(?:=(?:(?:\w|[0-9_-])+|"[^"]*")?)?)/) do |opt|
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key, value = opt.split('=')
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# If a quoted list, convert to array
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if value && value.include?("\"")
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value.gsub!(/"/, "")
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value = value.split
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end
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@options[key.to_sym] = value || true
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end
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end
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@options[:linenos] = false
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else
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raise SyntaxError.new <<-eos
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Syntax Error in tag 'example' while parsing the following markup:
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#{markup}
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Valid syntax: example <lang> [id=foo]
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eos
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end
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end
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def render(context)
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prefix = context["highlighter_prefix"] || ""
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suffix = context["highlighter_suffix"] || ""
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code = super.to_s.strip
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output = case context.registers[:site].highlighter
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when 'rouge'
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render_rouge(code, @lang, @options[:linenos])
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end
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rendered_output = example(code) + add_code_tag(output, @lang)
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prefix + rendered_output + suffix
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end
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def example(output)
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output = output.gsub(/<hide>/, "").gsub(/<\/hide>/, "")
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"<div class=\"example" + (@options[:columns] ? " example-bg" : "") + "\"" + (@options[:id] ? " data-example-id=\"#{@options[:id]}\"" : "") + ">\n" + (@options[:columns] ? "<div class=\"example-column example-column-" + @options[:columns] + "\">\n" : "") + (@options[:wrapper] ? "<div class=\"" + @options[:wrapper] + "\">\n" : "") + (@options[:"max-width"] ? "<div style=\"max-width: " + @options[:"max-width"] + "px; margin: 0 auto;\">\n" : "") + "#{output}" + (@options[:wrapper] ? "\n</div>" : "") + (@options[:columns] ? "\n</div>" : "") + (@options[:"max-width"] ? "\n</div>" : "") + "\n</div>"
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end
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end
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module HightlightFilter
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def highlight_tidy(code, language = 'html')
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code = render_rouge(code, language)
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add_code_tag(code, language)
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end
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end
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end
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Liquid::Template.register_tag('example', Jekyll::ExampleBlock)
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Liquid::Template.register_filter(Jekyll::HightlightFilter)
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