docs: def _populate_placeholders_in_files(
              self):
          """
          *populate placeholders in file names, folder names and content*
          """
          self.log.info(
              'starting the ``_populate_placeholders_in_files`` method')
  
          rev = reversed(self.directoryContents)
          phs = self.settings["frankenstein"]["placeholder delimiters"]
  
          # FILE CONTENT FIRST
          for i in self.directoryContents:
              if os.path.isfile(i):
                  pathToReadFile = i
                  if ".DS_Store" in i:
                      os.remove(i)
                      continue
                  try:
                      self.log.debug(
                          "attempting to open the file %s" % (pathToReadFile,))
                      if i[-4:] in [".png", ".jpg", ".gif"]:
                          continue
                      readFile = codecs.open(
                          pathToReadFile, encoding='ISO-8859-1', mode='r')
                      thisData = readFile.read()
                      readFile.close()
                  except IOError, e:
                      message = 'could not open the file %s' % (pathToReadFile,)
                      self.log.critical(message)
                      raise IOError(message)
  
                  newContent = thisData
                  for k, v in self.phDict.iteritems():
                      for ph in phs:
                          fullPH = ph + k + ph
                          if fullPH in thisData:
                              newContent = newContent.replace(fullPH, v)
  
                  if newContent != thisData:
                      writeFile = codecs.open(
                          pathToReadFile, encoding='ISO-8859-1', mode='w')
                      writeFile.write(newContent)
                      writeFile.close()
  
          # NOW FILE NAMES
          for i in self.directoryContents:
              if os.path.isfile(i):
                  newPath = i
                  newFile = i.split("/")[-1]
                  for k, v in self.phDict.iteritems():
                      for ph in phs:
                          fullPH = ph + k + ph
                          if fullPH in newFile:
                              newFile = newFile.replace(fullPH, v)
                              newPath = "/".join(i.split("/")
                                                 [:-1]) + "/" + newFile
                  if newPath != i:
                      try:
                          self.log.debug("attempting to rename file %s to %s" %
                                         (i, newPath))
                          shutil.move(i, newPath)
                      except Exception, e:
                          self.log.error(
                              "could not rename file %s to %s - failed with this error: %s " % (i, newPath, str(e),))
                          sys.exit(0)
  
          # NOW DRIECTORY NAMES
          theseDirs = []
          for i in reversed(self.directoryContents):
              if os.path.isdir(i):
                  theseDirs.append(i)
          for i in theseDirs:
              newPath = i
              newFolder = i.split("/")[-1]
              for k, v in self.phDict.iteritems():
                  for ph in phs:
                      fullPH = ph + k + ph
                      if fullPH in newFolder:
                          newFolder = newFolder.replace(fullPH, v)
                          newPath = "/".join(i.split("/")[:-1]) + "/" + newFolder
              if newPath != i:
                  try:
                      self.log.debug("attempting to rename file %s to %s" %
                                     (i, newPath))
                      shutil.move(i, newPath)
                  except Exception, e:
                      self.log.error(
                          "could not rename file %s to %s - failed with this error: %s " % (i, newPath, str(e),))
                      sys.exit(0)
  
          self.log.info(
              'completed the ``_populate_placeholders_in_files`` method')
          return None