def _OptInd(self):
# type: () -> int
"""Returns OPTIND that's >= 1, or -1 if it's invalid."""
# Note: OPTIND could be value.Int?
try:
result = state.GetInteger(self.mem, 'OPTIND')
except error.Runtime as e:
self.errfmt.Print_(e.UserErrorString())
result = -1
return result
def Run(self, cmd_val):
# type: (cmd_value__Argv) -> int
arg_r = args.Reader(cmd_val.argv, spids=cmd_val.arg_spids)
arg_r.Next()
# NOTE: If first char is a colon, error reporting is different. Alpine
# might not use that?
spec_str = arg_r.ReadRequired('requires an argspec')
var_name, var_spid = arg_r.ReadRequired2(
'requires the name of a variable to set')
try:
spec = self.spec_cache[spec_str]
except KeyError:
spec = _ParseOptSpec(spec_str)
self.spec_cache[spec_str] = spec
# TODO: OPTIND could be value.Int?
try:
optind = state.GetInteger(self.mem, 'OPTIND')
except error.Runtime as e:
self.errfmt.Print_(e.UserErrorString())
return 1
user_argv = self.mem.GetArgv() if arg_r.AtEnd() else arg_r.Rest()
#util.log('user_argv %s', user_argv)
status, opt_char, optarg, optind = _GetOpts(spec, user_argv, optind,
self.errfmt)
# Bug fix: bash-completion uses a *local* OPTIND ! Not global.
state.SetStringDynamic(self.mem, 'OPTARG', optarg)
state.SetStringDynamic(self.mem, 'OPTIND', str(optind))
if match.IsValidVarName(var_name):
state.SetStringDynamic(self.mem, var_name, opt_char)
else:
# NOTE: The builtin has PARTIALLY filed. This happens in all shells
# except mksh.
raise error.Usage('got invalid variable name %r' % var_name,
span_id=var_spid)
return status