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from sys import stderr
EXIT_CODE_FILE_ERROR = 1
EXIT_CODE_INVALID_TOKEN = 2
EXIT_CODE_SYNTAX_ERROR = 4
# vim autoindent misbehaves if I type these verbatim in strings
LEFT_BRACE = "{"
RIGHT_BRACE = "}"
LEFT_PAREN = "("
RIGHT_PAREN = ")"
class JackSyntaxError(Exception):
def __init__(self, msg, token):
self.message = msg
self.token = token
super().__init__(msg)
def print_err(msg):
print(msg, file=stderr)
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