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Diffstat (limited to 'lib/banzai/filter/markdown_filter.rb')
-rw-r--r-- | lib/banzai/filter/markdown_filter.rb | 42 |
1 files changed, 42 insertions, 0 deletions
diff --git a/lib/banzai/filter/markdown_filter.rb b/lib/banzai/filter/markdown_filter.rb new file mode 100644 index 00000000000..0072bab1f99 --- /dev/null +++ b/lib/banzai/filter/markdown_filter.rb @@ -0,0 +1,42 @@ +require 'banzai' +require 'html/pipeline/filter' + +module Banzai + module Filter + class MarkdownFilter < HTML::Pipeline::TextFilter + def initialize(text, context = nil, result = nil) + super text, context, result + @text = @text.gsub "\r", '' + end + + def call + html = self.class.renderer.render(@text) + html.rstrip! + html + end + + private + + def self.redcarpet_options + # https://github.com/vmg/redcarpet#and-its-like-really-simple-to-use + @redcarpet_options ||= { + fenced_code_blocks: true, + footnotes: true, + lax_spacing: true, + no_intra_emphasis: true, + space_after_headers: true, + strikethrough: true, + superscript: true, + tables: true + }.freeze + end + + def self.renderer + @renderer ||= begin + renderer = Redcarpet::Render::HTML.new + Redcarpet::Markdown.new(renderer, redcarpet_options) + end + end + end + end +end |