module Metanorma::Utils

def flatten_rawtext_lines(node, result)
  node.lines.each do |x|
    if node.respond_to?(:context) && (node.context == :literal ||
        node.context == :listing)
      result << x.gsub(/</, "&lt;").gsub(/>/, "&gt;")
    else
      # strip not only HTML <tag>, and Asciidoc xrefs <<xref>>
      result << x.gsub(/<[^>]*>+/, "")
    end
  end
  result
end