third_party/cython/src/Cython/Plex/Errors.py

   1 #=======================================================================
   2 #
   3 #   Python Lexical Analyser
   4 #
   5 #   Exception classes
   6 #
   7 #=======================================================================
   8
   9 class PlexError(Exception):
  10   message = ""
  11
  12 class PlexTypeError(PlexError, TypeError):
  13   pass
  14
  15 class PlexValueError(PlexError, ValueError):
  16   pass
  17
  18 class InvalidRegex(PlexError):
  19   pass
  20
  21 class InvalidToken(PlexError):
  22
  23   def __init__(self, token_number, message):
  24     PlexError.__init__(self, "Token number %d: %s" % (token_number, message))
  25
  26 class InvalidScanner(PlexError):
  27   pass
  28
  29 class AmbiguousAction(PlexError):
  30   message = "Two tokens with different actions can match the same string"
  31
  32   def __init__(self):
  33     pass
  34
  35 class UnrecognizedInput(PlexError):
  36   scanner = None
  37   position = None
  38   state_name = None
  39
  40   def __init__(self, scanner, state_name):
  41     self.scanner = scanner
  42     self.position = scanner.get_position()
  43     self.state_name = state_name
  44
  45   def __str__(self):
  46     return ("'%s', line %d, char %d: Token not recognised in state %s"
  47             % (self.position + (repr(self.state_name),)))
  48
  49
  50