def statePossibleVariableAssignment(cls, parserState: ParserState):
token = parserState.Token
if (isinstance(token, CharacterToken) and (token == "=")):
parserState.NewToken = VariableAssignmentKeyword(parserState.TokenMarker)
parserState.TokenMarker = parserState.NewToken
parserState.NextState = cls.stateVariableAssignment
return
raise NotImplementedError("State=PossibleCommentStart: {0!r}".format(token))
def stateSubtypeIndication(cls, parserState: ParserState):
token = parserState.Token
if (isinstance(token, FusedCharacterToken) and (token == ":=")):
parserState.NewToken = VariableAssignmentKeyword(token)
parserState.NewBlock = cls(parserState.LastBlock,
parserState.TokenMarker,
endToken=parserState.NewToken)
parserState.NextState = cls.DELIMITER_BLOCK.stateItemDelimiter
parserState.PushState = cls.EXPRESSION.stateBeforeExpression
parserState.TokenMarker = None
parserState.Counter = 0
return
elif isinstance(token, CharacterToken):
if (token == ';'):
parserState.NewToken = DelimiterToken(token)
parserState.NewBlock = cls(
parserState.LastBlock,
parserState.TokenMarker,
endToken=parserState.NewToken.PreviousToken)
_ = cls.DELIMITER_BLOCK(parserState.NewBlock,
parserState.NewToken)
parserState.Pop()
return
elif (token == ')'):
parserState.NewToken = BoundaryToken(token)
parserState.NewBlock = cls(
parserState.LastBlock,
parserState.TokenMarker,
endToken=parserState.NewToken.PreviousToken)
parserState.Pop(2)
parserState.TokenMarker = parserState.NewToken
return
elif isinstance(token, SpaceToken):
parserState.NewToken = BoundaryToken(token)
parserState.NextState = cls.stateWhitespace5
return
elif isinstance(token, (LinebreakToken, CommentToken)):
block = LinebreakBlock if isinstance(
token, LinebreakToken) else CommentBlock
parserState.NewBlock = cls(parserState.LastBlock,
parserState.TokenMarker,
endToken=token.PreviousToken,
multiPart=True)
_ = block(parserState.NewBlock, token)
parserState.TokenMarker = None
parserState.NextState = cls.stateWhitespace5
return
raise TokenParserException(
"Expected ';', ':=' or whitespace after subtype indication.",
token)
def stateWhitespace4(cls, parserState: ParserState):
token = parserState.Token
if (isinstance(token, FusedCharacterToken) and (token == ":=")):
parserState.NewToken = VariableAssignmentKeyword(token)
parserState.NewBlock = cls(parserState.LastBlock,
parserState.TokenMarker,
endToken=parserState.NewToken)
parserState.PushState = cls.EXPRESSION_BLOCK.stateExpression
parserState.TokenMarker = None
parserState.Counter = 0
return
elif (isinstance(token, CharacterToken) and (token == ";")):
parserState.NewToken = EndToken(token)
parserState.NewBlock = cls(parserState.LastBlock,
parserState.TokenMarker,
endToken=parserState.NewToken)
parserState.Pop()
return
elif isinstance(token, LinebreakToken):
if (not (isinstance(parserState.LastBlock, CommentBlock)
and isinstance(parserState.LastBlock.StartToken,
MultiLineCommentToken))):
parserState.NewBlock = cls(parserState.LastBlock,
parserState.TokenMarker,
endToken=token.PreviousToken,
multiPart=True)
_ = LinebreakBlock(parserState.NewBlock, token)
else:
parserState.NewBlock = LinebreakBlock(parserState.LastBlock,
token)
parserState.TokenMarker = None
return
elif isinstance(token, CommentToken):
parserState.NewBlock = CommentBlock(parserState.LastBlock, token)
parserState.TokenMarker = None
return
elif (isinstance(token, SpaceToken) and
(isinstance(parserState.LastBlock, CommentBlock) and isinstance(
parserState.LastBlock.StartToken, MultiLineCommentToken))):
parserState.NewToken = BoundaryToken(token)
parserState.NewBlock = WhitespaceBlock(parserState.LastBlock,
parserState.NewToken)
parserState.TokenMarker = None
return
raise BlockParserException(
"Expected ':=' or ';' after subtype indication.", token)
def stateWhitespace5(cls, parserState: ParserState):
token = parserState.Token
if (isinstance(token, FusedCharacterToken) and (token == ":=")):
parserState.NewToken = VariableAssignmentKeyword(token)
parserState.NewBlock = cls(parserState.LastBlock,
parserState.TokenMarker,
endToken=parserState.NewToken)
parserState.NextState = cls.DELIMITER_BLOCK.stateItemDelimiter
parserState.PushState = cls.EXPRESSION.stateBeforeExpression
parserState.Counter = 0
return
elif isinstance(token, CharacterToken):
if (token == ';'):
parserState.NewToken = DelimiterToken(token)
parserState.NewBlock = cls(
parserState.LastBlock,
parserState.TokenMarker,
endToken=parserState.NewToken.PreviousToken)
_ = cls.DELIMITER_BLOCK(parserState.NewBlock,
parserState.NewToken)
parserState.Pop()
return
elif (token == ')'):
parserState.NewToken = BoundaryToken(token)
parserState.NewBlock = cls(
parserState.LastBlock,
parserState.TokenMarker,
endToken=parserState.NewToken.PreviousToken)
parserState.Pop(2)
parserState.TokenMarker = parserState.NewToken
return
elif isinstance(token, LinebreakToken):
if (not (isinstance(parserState.LastBlock, CommentBlock)
and isinstance(parserState.LastBlock.StartToken,
MultiLineCommentToken))):
parserState.NewBlock = cls(parserState.LastBlock,
parserState.TokenMarker,
endToken=token.PreviousToken,
multiPart=True)
_ = LinebreakBlock(parserState.NewBlock, token)
else:
parserState.NewBlock = LinebreakBlock(parserState.LastBlock,
token)
parserState.TokenMarker = None
return
elif isinstance(token, CommentToken):
parserState.NewBlock = CommentBlock(parserState.LastBlock, token)
parserState.TokenMarker = None
return
elif (isinstance(token, IndentationToken)
and isinstance(token.PreviousToken,
(LinebreakToken, SingleLineCommentToken))):
return
elif (isinstance(token, SpaceToken) and
(isinstance(parserState.LastBlock, CommentBlock) and isinstance(
parserState.LastBlock.StartToken, MultiLineCommentToken))):
parserState.NewToken = BoundaryToken(token)
parserState.NewBlock = WhitespaceBlock(parserState.LastBlock,
parserState.NewToken)
parserState.TokenMarker = None
return
raise TokenParserException("Expected ';' or ':='.", token)
