lib.py 文件源码

def load(_, fd):
    ''' Read from file object to enable reading from arbitrary data source and position.
        returns global config
    '''
    title = None; section = dd()  # this dict initializes any missing value with an empty list TODO make ordered default dict, but couldn't find any compatible solution
    for line in xreadlines(fd):
      line = line.strip()  # just in case of incorrect formatting
      if line.startswith('['):  # new section detected: first store last section
        if len(section) > 0: _.sections[title] = section  # OLD: and title is not None
        title = line[1:-1]; section = dd()  # default-dictionary of (standard) type map
      elif line != '':
        try:
          idx = line.index('=')  # try to parse
          key, value = line[:idx], line[idx+1:]  # HINT: was .lower() and .rstrip(), but when reading/writing only via this script's API there's no need for that
          if key in [TAG, FROM] and value != '':
            section[intern(key)].append(intern(value))  # this dict allows several values per key
          elif key in [IGNORE, SKIP] and key not in section:
            section[intern(key)] = None  # only keep key instead of default-appending empty string
          elif title == "" and key in [SKIPD, IGNORED, GLOBAL] and value != '':
            section[intern(key)].append(intern(value))  # global dir skip or ignore pattern, or global config setting
          else: warn("Encountered illegal key <%s>. Skipping entry." % key)
        except: warn("Key with no value for illegal key %s" % repr(line))
      else: break  # an empty line terminates file
    if len(section) > 0: _.sections[title] = section  # last store OLD:  and title is not None
    return { k.lower(): v if v.lower() not in ("true", "false") else v.lower().strip() == "true" for k, v in (wrapExc(lambda: kv.split("=")[:2], lambda: (kv, None)) for kv in _.sections.get("", {}).get(GLOBAL, [])) }  # return global config map for convenience