+
+ def flags(self, *flags):
+ """Parses out "flags" to a command, like `MODUNLOAD -AUTOLOAD somemodule`
+ @lib.hook()
+ @lib.flags('autoload', 'force')
+ def baz(bot, user, chan, realtarget, flags, *args)
+
+ Note the added `flags` argument, which will be a dict - in this case `{'autounload':true,'force':false}`."""
+ def realhook(func):
+ func.flags = [f.lower() for f in flags]
+
+ @wraps(func)
+ def parseargs(bot, user, chan, realtarget, *_args):
+ args = list(_args) # we need a copy, also need a list, iterate over _args-tuple, mutate args-list
+ found_flags = {f: False for f in flags}
+ for arg in _args:
+ if arg[0] == "-" and len(arg) > 1:
+ found_prefix = None
+ possible_flag = arg[1:].lower()
+ for f in flags:
+ if possible_flag == f: # Exact match?
+ found_flags[possible_flag] = True
+ args.remove(arg)
+ found_prefix = None
+ break
+ elif f.find(possible_flag) == 0: # Is the current word a prefix of a flag?
+ if found_prefix is not None: # Is it also a prefix of another flag?
+ return 'Error: %s is a prefix of multiple flags (%s, %s).' % (possible_flag, found_prefix[1], f)
+ else:
+ found_prefix = (arg,f)
+ if found_prefix is not None: # found (only one) prefix
+ found_flags[found_prefix[1]] = True
+ args.remove(found_prefix[0])
+ return func(bot, user, chan, realtarget, found_flags, *args)
+
+ return parseargs
+ return realhook
+
+