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from typing import Tuple, Union
class ParseError(Exception):
def __init__(self, code: str, *args: Union[str, None]):
self.code = code
self.args = args
self.message = get_error_message(code, args)
def get_error_message(code: str, args: Tuple[Union[str, None], ...]) -> str:
if code == 'E00001':
return 'Generic error'
if code == 'E0002':
return 'Expected an entry start'
if code == 'E0003':
return 'Expected token: "{}"'.format(args[0])
if code == 'E0004':
return 'Expected a character from range: "{}"'.format(args[0])
if code == 'E0005':
msg = 'Expected message "{}" to have a value or attributes'
return msg.format(args[0])
if code == 'E0006':
msg = 'Expected term "-{}" to have a value'
return msg.format(args[0])
if code == 'E0007':
return 'Keyword cannot end with a whitespace'
if code == 'E0008':
return 'The callee has to be an upper-case identifier or a term'
if code == 'E0009':
return 'The argument name has to be a simple identifier'
if code == 'E0010':
return 'Expected one of the variants to be marked as default (*)'
if code == 'E0011':
return 'Expected at least one variant after "->"'
if code == 'E0012':
return 'Expected value'
if code == 'E0013':
return 'Expected variant key'
if code == 'E0014':
return 'Expected literal'
if code == 'E0015':
return 'Only one variant can be marked as default (*)'
if code == 'E0016':
return 'Message references cannot be used as selectors'
if code == 'E0017':
return 'Terms cannot be used as selectors'
if code == 'E0018':
return 'Attributes of messages cannot be used as selectors'
if code == 'E0019':
return 'Attributes of terms cannot be used as placeables'
if code == 'E0020':
return 'Unterminated string expression'
if code == 'E0021':
return 'Positional arguments must not follow named arguments'
if code == 'E0022':
return 'Named arguments must be unique'
if code == 'E0024':
return 'Cannot access variants of a message.'
if code == 'E0025':
return 'Unknown escape sequence: \\{}.'.format(args[0])
if code == 'E0026':
return 'Invalid Unicode escape sequence: {}.'.format(args[0])
if code == 'E0027':
return 'Unbalanced closing brace in TextElement.'
if code == 'E0028':
return 'Expected an inline expression'
if code == 'E0029':
return 'Expected simple expression as selector'
return code
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