Jose Farias
49 lines
1.3 KiB
Ruby
49 lines
1.3 KiB
Ruby
require "rouge/plugins/redcarpet"
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class MarkdownRenderer < Redcarpet::Render::HTML
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include Rouge::Plugins::Redcarpet
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def self.build
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Redcarpet::Markdown.new MarkdownRenderer.new(filter_html: false),
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autolink: true, highlight: true, no_intra_emphasis: true,
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fenced_code_blocks: true, lax_spacing: true, strikethrough: true, tables: true
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end
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def initialize(...)
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super
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@id_counts = Hash.new 0
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end
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def header(text, header_level)
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unique_id(text).then do |id|
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<<~HTML.chomp
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<h#{header_level} id="#{id}">
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#{text} <a href="##{id}" class="heading__link" aria-hidden="true">#</a>
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</h#{header_level}>
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HTML
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end
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end
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def image(url, title, alt_text)
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<<~HTML.chomp
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<a title="#{title}" href="#{url}" data-action="lightbox#open:prevent" data-lightbox-target="image" data-lightbox-url-value="#{url}?disposition=attachment">
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<img src="#{url}" alt="#{alt_text}">
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</a>
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HTML
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end
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def code_block(code, language)
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block_code(code, language) # call Rouge Redcarpet plugin
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end
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private
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attr_reader :id_counts
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def unique_id(text)
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text.parameterize.then do |base_id|
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id_counts[base_id] += 1
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id_counts[base_id] > 1 ? "#{base_id}-#{id_counts[base_id]}" : base_id
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end
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end
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end
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