custom markdown in user input
Answering my own question:
Defining custom renderer and overwriting normal_text method does a job.
class HTMLwithCards < Redcarpet::Render::HTML def preprocess(full_document) full_document.gsub(/\[card:(.*)\]/) do card = Card.find_by_name($1) if card "<span class='preview' data-card='/cards/#{card.id}'>#{$1}</span>" else $1 end end endendand then you can call it like this:
def markdown(text) renderer = HTMLwithCards.new(hard_wrap: true, filter_html: true) Redcarpet::Markdown.new(renderer).render(text).html_safeend