Ejemplo n.º 1
0
def justErrors(value):
  """Check value and ensure it contains no text, only errors (or nothing)."""
  if not value:
    return None

  if not isinstance(value, list):
    value = [value]

  result = []
  for part in flatten(value):
    if part:
      if not isinstance(part, Error):
        raise Exception('Got %r when expecting only errors' % part)
      else:
        result.append(part)

  return value
Ejemplo n.º 2
0
def stringsAndErrors(value):
  """Aggregate both unparsed strings and errors."""
  if not value:
    return None

  if not isinstance(value, list):
    value = [value]

  result = []
  lastStringPart = None
  for part in flatten(value):
    if isinstance(part, basestring):
      lastStringPart = lastStringPart or StringIO.StringIO()
      lastStringPart.write(part)
    else:
      if lastStringPart:
        result.append(lastStringPart.getvalue())
        lastStringPart = None
      if part:
        result.append(part)
  if lastStringPart:
    result.append(lastStringPart.getvalue())
  return result