def _keep_line()

in src/analysis/parsers.py [0:0]

• 17 lines of code
• 9 McCabe index (conditional complexity)

def _keep_line(line: str, seqnames: Set[str]) -> bool:
  """Function to decide which lines to keep."""
  if not line.strip():
    return True
  if line.strip() == '//':  # End tag
    return True
  if line.startswith('# STOCKHOLM'):  # Start tag
    return True
  if line.startswith('#=GC RF'):  # Reference Annotation Line
    return True
  if line[:4] == '#=GS':  # Description lines - keep if sequence in list.
    _, seqname, _ = line.split(maxsplit=2)
    return seqname in seqnames
  elif line.startswith('#'):  # Other markup - filter out
    return False
  else:  # Alignment data - keep if sequence in list.
    seqname = line.partition(' ')[0]
    return seqname in seqnames