f = cStringIO.StringIO(command)
# tokens is a list of token tuples, each looking like:
# (type, string, (srow, scol), (erow, ecol), line)
f = cStringIO.StringIO(command)
# tokens is a list of token tuples, each looking like:
# (type, string, (srow, scol), (erow, ecol), line)