def passport():
_fields = {}
while True:
fkey, fval = yield field
_fields[fkey] = fval
m = yield string_from(" ", "\n").optional()
if m == "\n":
n = yield peek(string("\n").optional())
e = yield peek(eof.result(True).optional())
if n == "\n" or e:
break
elif m is None:
break
return _fields
postfix = yield control_postfix.optional()
return TableEndEntry(label, postfix)
@parsy.generate
def hook_rhs():
label = yield control_label
return TableHookEntry(label)
text_rhs = parsy.regex(
'.+$', flags=re.M).map(lambda x: TableTextEntry(x)).desc('text entry')
codepoint = parsy.regex('([0-9a-fA-F]{2})+').map(to_hex).desc(
'code point in hexadecimal')
text_entry = parsy.peek(
parsy.regex('[0-9a-fA-F]')).map(lambda x: TableEntryKind.TEXT)
control_entry = parsy.string('$').map(lambda x: TableEntryKind.CONTROL)
end_entry = parsy.string('/').map(lambda x: TableEntryKind.END)
hook_entry = parsy.string('@').map(lambda x: TableEntryKind.HOOK)
entry_kind = text_entry | control_entry | end_entry | hook_entry
@parsy.generate
def line():
kind = yield entry_kind
binary = yield codepoint
yield parsy.string('=')
if kind == TableEntryKind.TEXT:
entry = yield text_rhs
elif kind == TableEntryKind.CONTROL:
entry = yield control_rhs
def test_peek(self):
self.assertEqual(peek(any_char).parse_partial("abc"), ("a", "abc"))
with self.assertRaises(ParseError) as err:
peek(digit).parse("a")
self.assertEqual(str(err.exception), "expected 'a digit' at 0:0")