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Contents
# frozen_string_literal: true
require "redcarpet"
module Decidim
module Comments
# This class parses a string from plain text (markdown) and
# renders it as HTML.
class Markdown < ::Redcarpet::Render::Base
delegate :render, to: :markdown
private
def markdown
@markdown ||= ::Redcarpet::Markdown.new(renderer)
end
def renderer
@renderer ||= Decidim::Comments::MarkdownRender.new
end
end
# Custom markdown renderer for Comments
class MarkdownRender < ::Redcarpet::Render::Safe
def initialize(extensions = {})
super({
autolink: true,
escape_html: false,
filter_html: true,
hard_wrap: true,
lax_spacing: false,
no_images: true,
no_styles: true
}.merge(extensions))
end
# renders quotes with a custom css class
def block_quote(quote)
%(<blockquote class="comment__quote">#{quote}</blockquote>)
end
# removes header tags in comments
def header(title, _level)
title
end
# prevents empty <p/> in comments
def paragraph(text)
return if text.blank?
"<p>#{text}</p>"
end
# Prevents underscores to be replaced with <em> tags in comments, such as
# https://github.com/org/module_with_underscores or within words such as
# "Look for comment_maximum_length in the code". The `no_intra_emphasis`
# option for Redcarpet does not apparently work for this renderer.
#
# Related issues:
# https://github.com/vmg/redcarpet/issues/402
# https://github.com/vmg/redcarpet/issues/427
def emphasis(text)
"_#{text}_"
end
end
end
end
Version data entries
30 entries across 30 versions & 1 rubygems