class Renderer


  # Escapes a text for a regex.
  @escapeRegex = (text) ->
    return text.replace /[-[\]{}()*+?.,\\^$|#\s]/g, "\\$&"

  mapImports: (template) ->
    regex = /\(import ([^\)]+)\)/g
    matches = _.uniq(template.match(regex) || [ ])
    map = [ ]

    matches.forEach (match, i) =>
      random = i + "." + Math.round(Math.random() * 10000000000).toString()
      templateName = match.replace regex, "$1"
      map.push templateName: templateName, randomHash: random
      template = template.replace new RegExp(@::escapeRegex(match), 'g'), random

    { template: template, map: map }