text: # This Source Code Form is subject to the terms of the Mozilla Public
  # License, v. 2.0. If a copy of the MPL was not distributed with this
  # file, You can obtain one at http://mozilla.org/MPL/2.0/.
  
  def test(mod, path, entity = None):
    import re
    # ignore anyhting but Firefox
    if mod not in ("netwerk", "dom", "toolkit", "security/manager",
                   "browser", "extensions/reporter", "extensions/spellcheck",
                   "other-licenses/branding/firefox",
                   "browser/branding/official",
                   "services/sync"):
      return False
    if mod != "browser" and mod != "extensions/spellcheck":
      # we only have exceptions for browser and extensions/spellcheck
      return True
    if not entity:
      if mod == "extensions/spellcheck":
        return False
      # browser
      return not (re.match(r"searchplugins\/.+\.xml", path) or
                  re.match(r"chrome\/help\/images\/[A-Za-z-_]+\.png", path))
    if mod == "extensions/spellcheck":
      # l10n ships en-US dictionary or something, do compare
      return True
    if path == "defines.inc":
      return entity != "MOZ_LANGPACK_CONTRIBUTORS"
  
    if path != "chrome/browser-region/region.properties":
      # only region.properties exceptions remain, compare all others
      return True
    
    return not (re.match(r"browser\.search\.order\.[1-9]", entity) or
                re.match(r"browser\.contentHandlers\.types\.[0-5]", entity) or
                re.match(r"gecko\.handlerService\.schemes\.", entity) or
                re.match(r"gecko\.handlerService\.defaultHandlersVersion", entity))
  