def stateParse(cls, parserState: ParserState):
assert isinstance(parserState.CurrentGroup, FunctionBlock.NameBlock)
cls.stateParseFunctionName(parserState)
# if isinstance(block, GenericListBlocks.OpenBlock):
# parserState.PushState = cls.stateParseGenericList
# parserState.ReIssue()
# el
for block in parserState.CurrentGroup:
if isinstance(block, ConstantBlock):
parserState.PushState = Constant.stateParse
parserState.ReIssue()
elif isinstance(block, FunctionBlock.NameBlock):
parserState.PushState = Function.stateParse
parserState.ReIssue()
elif isinstance(block, FunctionBlock.EndBlock):
break
else:
raise TokenParserException(
"Block '{0!r}' not supported in a function.".format(block),
block)
else:
raise TokenParserException("", None)
parserState.Pop()
def stateParse(cls, document, group):
assert isinstance(parserState.CurrentGroup, PackageBodyBlock.NameBlock)
cls.stateParsePackageBodyName(parserState)
for block in parserState.GroupIterator:
if isinstance(block, GenericListBlocks.OpenBlock):
parserState.PushState = cls.stateParseGenericList
parserState.ReIssue()
elif isinstance(block, PortListBlocks.OpenBlock):
parserState.PushState = cls.stateParsePortList
parserState.ReIssue()
elif isinstance(block, ConstantBlock):
parserState.PushState = Constant.stateParse
parserState.ReIssue()
elif isinstance(block, Function.BeginBlock):
parserState.PushState = Function.stateParse
parserState.ReIssue()
elif isinstance(block, PackageBodyBlock.EndBlock):
break
else:
raise TokenParserException(
"Block '{0!r}' not supported in a package body.".format(
block), block)
else:
raise TokenParserException("", None)
parserState.Pop()
def stateParseArchitectureName(cls, document, group):
assert isinstance(parserState.CurrentGroup,
ArchitectureBlock.NameBlock)
tokenIterator = iter(parserState)
for token in tokenIterator:
if isinstance(token, IdentifierToken):
architectureName = token.Value
break
else:
raise TokenParserException("", None)
for token in tokenIterator:
if isinstance(token, IdentifierToken):
entityName = token.Value
break
else:
raise TokenParserException("", None)
oldNode = parserState.CurrentNode
architecture = cls(architectureName, entityName)
parserState.CurrentNode.AddArchitecture(architecture)
parserState.CurrentNode = architecture
parserState.CurrentNode.AddLibraryReferences(oldNode.Libraries)
parserState.CurrentNode.AddUses(oldNode.Uses)
oldNode.Libraries.clear()
oldNode.Uses.clear()
def stateDeclarativeRegion(cls, parserState: ParserState):
errorMessage = "Expected one of these keywords: generic, port, begin, end."
token = parserState.Token
if isinstance(parserState.Token, CharacterToken):
if (token == "\n"):
parserState.NewToken = LinebreakToken(token)
parserState.NewBlock = LinebreakBlock(parserState.LastBlock,
parserState.NewToken)
parserState.TokenMarker = parserState.NewToken
return
elif (token == "-"):
parserState.PushState = SingleLineCommentBlock.statePossibleCommentStart
parserState.TokenMarker = token
return
elif (token == "/"):
parserState.PushState = MultiLineCommentBlock.statePossibleCommentStart
parserState.TokenMarker = token
return
elif isinstance(token, SpaceToken):
parserState.NewToken = IndentationToken(token)
parserState.NewBlock = IndentationBlock(parserState.LastBlock,
parserState.NewToken)
return
elif isinstance(token, StringToken):
keyword = token.Value.lower()
if (keyword == "generic"):
newToken = GenericKeyword(token)
parserState.PushState = GenericList.OpenBlock.stateGenericKeyword
elif (keyword == "port"):
newToken = PortKeyword(token)
parserState.PushState = PortList.OpenBlock.statePortKeyword
elif (keyword == "end"):
newToken = EndKeyword(token)
parserState.NextState = EndGenerateBlock.stateEndKeyword
elif (keyword == "begin"):
parserState.NewToken = BeginKeyword(token)
parserState.NewBlock = ElseGenerateBeginBlock(
parserState.LastBlock, parserState.NewToken)
parserState.NextState = ElseGenerateBeginBlock.stateBeginKeyword
return
else:
raise TokenParserException(errorMessage, token)
parserState.NewToken = newToken
parserState.TokenMarker = newToken
return
raise TokenParserException(errorMessage, token)
def stateWhitespace1(cls, parserState: ParserState):
token = parserState.Token
errorMessage = "Expected '(' after keyword GENERIC."
if isinstance(token, CharacterToken):
if (token == "("):
parserState.NewToken = BoundaryToken(token)
parserState.NewBlock = OpenBlock(parserState.LastBlock,
parserState.TokenMarker,
endToken=parserState.NewToken)
parserState.NextState = CloseBlock.stateClosingParenthesis
parserState.PushState = OpenBlock.stateOpeningParenthesis
parserState.Counter = 1
return
elif (token == "\n"):
parserState.NewToken = LinebreakToken(token)
if (not isinstance(parserState.LastBlock,
MultiLineCommentBlock)):
parserState.NewBlock = OpenBlock(
parserState.LastBlock,
parserState.TokenMarker,
endToken=parserState.NewToken.PreviousToken,
multiPart=True)
_ = LinebreakBlock(parserState.NewBlock,
parserState.NewToken)
else:
parserState.NewBlock = LinebreakBlock(
parserState.LastBlock, parserState.NewToken)
parserState.TokenMarker = None
parserState.NextState = cls.stateWhitespace1
parserState.PushState = LinebreakBlock.stateLinebreak
return
elif (token == "-"):
parserState.NewBlock = OpenBlock(parserState.LastBlock,
parserState.TokenMarker,
endToken=token.PreviousToken,
multiPart=True)
parserState.TokenMarker = None
parserState.NextState = cls.stateWhitespace1
parserState.PushState = SingleLineCommentBlock.statePossibleCommentStart
parserState.TokenMarker = token
return
elif (token == "/"):
parserState.NewBlock = OpenBlock(parserState.LastBlock,
parserState.TokenMarker,
endToken=token.PreviousToken,
multiPart=True)
parserState.TokenMarker = None
parserState.NextState = cls.stateWhitespace1
parserState.PushState = MultiLineCommentBlock.statePossibleCommentStart
parserState.TokenMarker = token
return
elif (isinstance(token, SpaceToken)
and isinstance(parserState.LastBlock, MultiLineCommentBlock)):
parserState.NewToken = BoundaryToken(token)
parserState.NewBlock = WhitespaceBlock(parserState.LastBlock,
parserState.NewToken)
parserState.TokenMarker = None
return
raise TokenParserException(errorMessage, token)
def stateWhitespace4(cls, parserState: ParserState):
token = parserState.Token
if (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, StringToken) and (token <= "severity")):
parserState.NewToken = SeverityKeyword(token)
parserState.NextState = cls.stateSeverityKeyword
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 = cls(parserState.LastBlock, parserState.TokenMarker, endToken=token.PreviousToken, multiPart=True)
_ = CommentBlock(parserState.NewBlock, 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 keyword SEVERITY after message.", token)
def stateWhitespace3(cls, parserState: ParserState):
token = parserState.Token
if isinstance(token, StringToken):
parserState.NewToken = IdentifierToken(token)
parserState.NextState = cls.stateMessage
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 = cls(parserState.LastBlock, parserState.TokenMarker, endToken=token.PreviousToken, multiPart=True)
_ = CommentBlock(parserState.NewBlock, 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 keyword REPORT after assertion.", token)
def stateInKeyword(cls, parserState: ParserState):
token = parserState.Token
if (isinstance(token, CharacterToken) and (token == "(")):
parserState.NewToken = BoundaryToken(token)
parserState.NewBlock = cls(
parserState.LastBlock,
parserState.TokenMarker,
endToken=parserState.NewToken.PreviousToken)
parserState.TokenMarker = parserState.NewToken
parserState.NextState = LoopBlock.stateSequentialRegion
parserState.PushState = ExpressionBlockEndedByLoopORToORDownto.stateExpression
return
elif isinstance(token, SpaceToken):
parserState.NewToken = BoundaryToken(token)
parserState.NextState = cls.stateWhitespace3
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.stateWhitespace3
return
raise TokenParserException(
"Expected '(' or whitespace after keyword IN.", token)
def stateObjectName(cls, parserState: ParserState):
token = parserState.Token
if isinstance(token, SpaceToken):
parserState.NewToken = BoundaryToken(token)
parserState.NextState = cls.stateWhitespace2
return
elif (isinstance(token, CharacterToken) and (token == ":")):
parserState.NewToken = DelimiterToken(token)
parserState.NextState = cls.stateColon1
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.stateWhitespace2
return
raise TokenParserException(
"Expected whitespace after interface {0} name.".format(
cls.OBJECT_KIND), token)
def StripAndFuse(generator):
iterator = iter(generator)
lastBlock = next(iterator)
# don't filter the first block
yield lastBlock
for block in iterator:
if isinstance(block, (IndentationBlock, CommentBlock, LinebreakBlock)):
continue
else:
if (block.MultiPart == True):
while True:
nextBlock = next(iterator)
if isinstance(nextBlock, (WhitespaceBlock, CommentBlock)):
continue
if (type(block) is not type(nextBlock)):
raise TokenParserException(
"Error in multipart blocks. {0} <-> {1}".format(
type(block), type(nextBlock)),
None) # TODO: review exception type
nextBlock.StartToken.PreviousToken = block.EndToken
block.EndToken = nextBlock.EndToken
if (nextBlock.MultiPart == False):
break
block.PreviousBlock = lastBlock
block.StartToken.PreviousToken = lastBlock.EndToken
yield block
lastBlock = block
def stateClosingParenthesis(cls, parserState: ParserState):
token = parserState.Token
if (isinstance(token, CharacterToken) and (token == ";")):
parserState.NewToken = EndToken(token)
parserState.NewBlock = CloseBlock(parserState.LastBlock,
parserState.TokenMarker,
endToken=parserState.NewToken)
parserState.Pop()
return
elif isinstance(token, SpaceToken):
parserState.NextState = cls.stateWhitespace1
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.stateWhitespace1
return
raise TokenParserException("Expected ';' or whitespace.", token)
def stateDelimiter(cls, parserState: ParserState):
token = parserState.Token
if isinstance(token, StringToken):
parserState.NewToken = IdentifierToken(token)
parserState.NextState = ReferenceNameBlock.stateLibraryName
parserState.TokenMarker = parserState.NewToken
return
elif isinstance(token, ExtendedIdentifier):
parserState.NextState = ReferenceNameBlock.stateLibraryName
return
elif isinstance(token, LinebreakToken):
parserState.NewBlock = cls(parserState.LastBlock,
parserState.TokenMarker,
endToken=token,
multiPart=True)
parserState.TokenMarker = None
return
elif isinstance(token, CommentToken):
parserState.NewBlock = cls(parserState.LastBlock,
parserState.TokenMarker,
endToken=token.PreviousToken,
multiPart=True)
_ = CommentBlock(parserState.NewBlock, token)
parserState.TokenMarker = None
return
elif isinstance(token, SpaceToken):
parserState.NewToken = BoundaryToken(token)
parserState.TokenMarker = parserState.NewToken
parserState.NextState = cls.stateWhitespace1
return
raise TokenParserException(
"Expected library name (identifier) or whitespace.", token)
def stateItemRemainder(cls, parserState: ParserState):
token = parserState.Token
if isinstance(token, CharacterToken):
if (token == "("):
parserState.Counter += 1
elif (token == ")"):
parserState.Counter -= 1
if (parserState.Counter == 0):
parserState.NewToken = BoundaryToken(token)
parserState.NewBlock = ItemBlock(
parserState.LastBlock,
parserState.TokenMarker,
endToken=parserState.NewToken.PreviousToken)
_ = CloseBlock(parserState.NewBlock, parserState.NewToken)
parserState.Pop()
parserState.TokenMarker = None
else:
parserState.NewToken = ClosingRoundBracketToken(token)
# parserState.NewBlock = CloseBlock(parserState.LastBlock, parserState.NewToken)
# parserState.Pop()
elif (token == ";"):
if (parserState.Counter == 1):
parserState.NewToken = DelimiterToken(token)
parserState.NewBlock = ItemBlock(
parserState.LastBlock,
parserState.TokenMarker,
endToken=parserState.NewToken.PreviousToken)
_ = DelimiterBlock(parserState.NewBlock,
parserState.NewToken)
parserState.NextState = DelimiterBlock.stateItemDelimiter
else:
raise TokenParserException(
"Mismatch in opening and closing parenthesis: open={0}"
.format(parserState.Counter), token)
def stateItemDelimiter(cls, parserState: ParserState):
token = parserState.Token
if isinstance(token, StringToken):
if (token <= "signal"):
parserState.NewToken = SignalKeyword(token)
parserState.PushState = PortListInterfaceSignalBlock.stateSignalKeyword
parserState.TokenMarker = parserState.NewToken
return
else:
parserState.NewToken = IdentifierToken(token)
parserState.PushState = PortListInterfaceSignalBlock.stateObjectName
parserState.TokenMarker = parserState.NewToken
return
elif isinstance(token, ExtendedIdentifier):
parserState.NextState = PortListInterfaceSignalBlock.stateObjectName
return
elif isinstance(token, SpaceToken):
parserState.NextState = OpenBlock.stateOpeningParenthesis
return
elif isinstance(token, LinebreakToken):
parserState.NewBlock = LinebreakBlock(parserState.LastBlock, token)
parserState.TokenMarker = token
parserState.NextState = OpenBlock.stateOpeningParenthesis
return
elif isinstance(token, CommentToken):
parserState.NewBlock = cls(parserState.LastBlock,
parserState.TokenMarker,
endToken=token.PreviousToken,
multiPart=True)
_ = CommentBlock(parserState.NewBlock, token)
parserState.TokenMarker = None
# parserState.NextState = cls.stateWhitespace1
return
raise TokenParserException("Expected port name (identifier).", token)
def stateItemDelimiter(cls, parserState: ParserState):
token = parserState.Token
if isinstance(token, StringToken):
parserState.NewToken = IdentifierToken(token)
parserState.TokenMarker = parserState.NewToken
parserState.NextState = ItemBlock.stateItemRemainder
return
elif isinstance(token, ExtendedIdentifier):
parserState.NextState = ItemBlock.stateItemRemainder
return
elif isinstance(token, SpaceToken):
parserState.NextState = OpenBlock.stateOpeningParenthesis
return
elif isinstance(token, LinebreakToken):
parserState.NewBlock = LinebreakBlock(parserState.LastBlock, token)
parserState.TokenMarker = token
parserState.NextState = OpenBlock.stateOpeningParenthesis
return
elif isinstance(token, CommentToken):
parserState.NewBlock = cls(parserState.LastBlock,
parserState.TokenMarker,
endToken=token.PreviousToken,
multiPart=True)
_ = CommentBlock(parserState.NewBlock, token)
parserState.TokenMarker = None
return
raise TokenParserException("Expected signal name (identifier).", token)
def stateWhitespace1(cls, parserState: ParserState):
token = parserState.Token
if isinstance(token, StringToken):
parserState.NewToken = IdentifierToken(token)
parserState.NextState = cls.stateProcedureName
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 = cls(parserState.LastBlock, parserState.TokenMarker, endToken=token.PreviousToken, multiPart=True)
_ = CommentBlock(parserState.NewBlock, 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 TokenParserException("Expected procedure name (designator).", token)
def stateAfterParameterList(cls, parserState: ParserState):
token = parserState.Token
if (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, StringToken):
if (token <= "is"):
parserState.NewToken = IsKeyword(token)
parserState.NewBlock = VoidBlock(parserState.LastBlock, parserState.TokenMarker, parserState.NewToken)
parserState.NextState = DeclarativeRegion.stateDeclarativeRegion
return
elif isinstance(token, SpaceToken):
parserState.NewToken = BoundaryToken(token)
parserState.NextState = cls.stateWhitespace1
return
elif isinstance(token, (LinebreakToken, CommentToken)):
block = LinebreakBlock if isinstance(token, LinebreakToken) else CommentBlock
parserState.NewBlock = block(parserState.LastBlock, token)
parserState.TokenMarker = None
parserState.NextState = cls.stateWhitespace1
return
raise TokenParserException("Expected keyword RETURN.", token)
def stateWhitespace3(cls, parserState: ParserState):
token = parserState.Token
if (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, StringToken) and (token <= "is")):
parserState.NewToken = IsKeyword(token)
parserState.NewBlock = cls(parserState.LastBlock, parserState.TokenMarker, endToken=parserState.NewToken)
parserState.NextState = DeclarativeRegion.stateDeclarativeRegion
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 = cls(parserState.LastBlock, parserState.TokenMarker, endToken=token.PreviousToken, multiPart=True)
_ = CommentBlock(parserState.NewBlock, 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 TokenParserException("Expected function name (designator).", token)
def stateDot1(cls, parserState: ParserState):
token = parserState.Token
if isinstance(token, StringToken):
parserState.NewToken = IdentifierToken(token)
parserState.NextState = cls.statePackageName
return
elif isinstance(token, ExtendedIdentifier):
parserState.NextState = cls.statePackageName
return
elif (isinstance(token, CharacterToken) and (token == ".")):
parserState.NewToken = DelimiterToken(token)
parserState.NextState = cls.stateDot1
return
elif isinstance(token, SpaceToken):
#parserState.NewToken = BoundaryToken(token)
parserState.NextState = cls.stateWhitespace2
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.stateWhitespace2
return
raise TokenParserException("Expected package name after '.'.", token)
def stateKeyword1(cls, parserState: ParserState):
IS_DOUBLE_KEYWORD = isinstance(cls.KEYWORD, tuple)
nextState = cls.stateWhitespace2 if IS_DOUBLE_KEYWORD else cls.stateWhitespace3
token = parserState.Token
if isinstance(token, CharacterToken):
if (not isinstance(cls.KEYWORD, tuple) and (token == ";")):
parserState.NewToken = EndToken(token)
parserState.NewBlock = cls(parserState.LastBlock,
parserState.TokenMarker,
endToken=parserState.NewToken)
parserState.Pop()
return
elif isinstance(token, SpaceToken):
parserState.NewToken = BoundaryToken(token)
parserState.NextState = nextState
return
elif isinstance(token, LinebreakToken):
parserState.NewBlock = cls(parserState.LastBlock,
parserState.TokenMarker,
endToken=token,
multiPart=True)
parserState.TokenMarker = None
parserState.NextState = cls.stateWhitespace1
return
elif isinstance(token, CommentToken):
parserState.NewBlock = cls(parserState.LastBlock,
parserState.TokenMarker,
endToken=token.PreviousToken,
multiPart=True)
_ = CommentBlock(parserState.NewBlock, token)
parserState.TokenMarker = None
parserState.NextState = cls.stateWhitespace1
return
raise TokenParserException("Expected ';' or whitespace.", token)
def stateDot2(cls, parserState: ParserState):
token = parserState.Token
if isinstance(token, StringToken):
if (token <= "all"):
parserState.NewToken = AllKeyword(token)
else:
parserState.NewToken = IdentifierToken(token)
parserState.NextState = cls.stateObjectName
return
elif isinstance(token, ExtendedIdentifier):
parserState.NextState = cls.stateObjectName
return
elif isinstance(token, SpaceToken):
parserState.NewToken = BoundaryToken(token)
parserState.NextState = cls.stateWhitespace4
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.stateWhitespace4
return
raise TokenParserException("Expected object name after '.'.", token)
def stateGenerateKeyword(cls, parserState: ParserState): token = parserState.Token errorMessage = "Expected whitespace after keyword GENERATE." if isinstance(token, CharacterToken): if (token == "\n"): parserState.NewBlock = RangeBlock(parserState.LastBlock, parserState.TokenMarker, endToken=token.PreviousToken, multiPart=True) parserState.NewToken = LinebreakToken(token) _ = LinebreakBlock(parserState.NewBlock, parserState.NewToken) parserState.TokenMarker = None parserState.NextState = cls.stateWhitespace1 parserState.PushState = LinebreakBlock.stateLinebreak return elif (token == "-"): parserState.NewBlock = RangeBlock(parserState.LastBlock, parserState.TokenMarker, endToken=token.PreviousToken, multiPart=True) parserState.TokenMarker = None parserState.NextState = cls.stateWhitespace1 parserState.PushState = SingleLineCommentBlock.statePossibleCommentStart parserState.TokenMarker = token return elif (token == "/"): parserState.NewBlock = RangeBlock(parserState.LastBlock, parserState.TokenMarker, endToken=token.PreviousToken, multiPart=True) parserState.TokenMarker = None parserState.NextState = cls.stateWhitespace1 parserState.PushState = MultiLineCommentBlock.statePossibleCommentStart parserState.TokenMarker = token return elif isinstance(token, SpaceToken): parserState.NewToken = BoundaryToken(token) parserState.NextState = cls.stateWhitespace1 return raise TokenParserException(errorMessage, token)
def stateWhitespace1(cls, parserState: ParserState):
token = parserState.Token
if isinstance(token, StringToken):
parserState.NewToken = IdentifierToken(token)
parserState.TokenMarker = parserState.NewToken
parserState.NextState = ReferenceNameBlock.stateLibraryName
return
elif isinstance(token, ExtendedIdentifier):
parserState.NextState = ReferenceNameBlock.stateLibraryName
return
elif isinstance(token, (LinebreakToken, CommentToken)):
block = LinebreakBlock if isinstance(
token, LinebreakToken) else CommentBlock
parserState.NewBlock = block(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 library name (identifier).",
token)
def stateWhenKeyword(cls, parserState: ParserState):
token = parserState.Token
if isinstance(token, CharacterToken):
if (token == ";"):
parserState.NewToken = EndToken(token)
parserState.NewBlock = EndBlock(parserState.LastBlock, parserState.TokenMarker, endToken=parserState.NewToken.PreviousToken)
parserState.Pop()
return
elif (token == "("):
parserState.NewToken = BoundaryToken(token)
parserState.NewBlock = cls(parserState.LastBlock, parserState.TokenMarker, endToken=parserState.NewToken.PreviousToken)
parserState.TokenMarker = parserState.NewToken
parserState.NextState = EndBlock.stateError
parserState.PushState = ExitConditionBlock.stateExpression
return
elif isinstance(token, SpaceToken):
parserState.NewToken = BoundaryToken(token)
parserState.NextState = cls.stateWhitespace3
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.stateWhitespace3
return
raise TokenParserException("Expected ';' or whitespace after keyword RETURN.", token)
def stateParameterKeyword(cls, parserState: ParserState):
token = parserState.Token
if (isinstance(token, CharacterToken) and (token == "(")):
parserState.NewToken = BoundaryToken(token)
parserState.NewBlock = cls(parserState.LastBlock,
parserState.TokenMarker,
endToken=parserState.NewToken)
parserState.NextState = CloseBlock.stateClosingParenthesis
parserState.PushState = cls.stateOpeningParenthesis
parserState.Counter = 1
return
elif isinstance(token, SpaceToken):
parserState.NextState = cls.stateWhitespace1
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.stateWhitespace1
return
raise TokenParserException(
"Expected '(' or whitespace after keyword PARAMETER.", token)
def stateWhitespace1(cls, parserState: ParserState):
token = parserState.Token
if (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, StringToken):
if (token <= "when"):
parserState.NewToken = WhenKeyword(token)
parserState.NextState = cls.stateWhenKeyword
return
else:
parserState.NewToken = IdentifierToken(token)
# parserState.TokenMarker = parserState.NewToken
parserState.NextState = cls.stateExitLoopLabel
return
elif isinstance(token, ExtendedIdentifier):
parserState.NextState = cls.stateExitLoopLabel
return
elif isinstance(token, (LinebreakToken, CommentToken)):
block = LinebreakBlock if isinstance(token, LinebreakToken) else CommentBlock
parserState.NewBlock = block(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 ';', keyword WHEN or loop label.", token)
def stateEndKeyword(cls, parserState: ParserState):
token = parserState.Token
if isinstance(token, CharacterToken):
if ((cls.KEYWORD_IS_OPTIONAL is True) and (token == ";")):
parserState.NewToken = EndToken(token)
parserState.NewBlock = cls(parserState.LastBlock,
parserState.TokenMarker,
endToken=parserState.NewToken)
parserState.Pop()
return
elif isinstance(token, SpaceToken):
parserState.NewToken = BoundaryToken(token)
parserState.NextState = cls.stateWhitespace1
return
elif isinstance(token, LinebreakToken):
parserState.NewBlock = cls(parserState.LastBlock,
parserState.TokenMarker,
endToken=token,
multiPart=True)
parserState.TokenMarker = None
parserState.NextState = cls.stateWhitespace1
return
elif isinstance(token, CommentToken):
parserState.NewBlock = cls(parserState.LastBlock,
parserState.TokenMarker,
endToken=token.PreviousToken,
multiPart=True)
_ = CommentBlock(parserState.NewBlock, token)
parserState.TokenMarker = None
parserState.NextState = cls.stateWhitespace1
return
raise TokenParserException("Expected ';' or whitespace.", token)
def stateDeclarativeRegion(cls, parserState: ParserState):
token = parserState.Token
if isinstance(token, SpaceToken):
blockType = IndentationBlock if isinstance(
token, IndentationToken) else WhitespaceBlock
parserState.NewBlock = blockType(parserState.LastBlock, token)
return
elif isinstance(token, (LinebreakToken, CommentToken)):
block = LinebreakBlock if isinstance(
token, LinebreakToken) else CommentBlock
parserState.NewBlock = block(parserState.LastBlock, token)
parserState.TokenMarker = None
return
elif isinstance(token, StringToken):
tokenValue = token.Value.lower()
for keyword in cls.KEYWORDS:
if (tokenValue == keyword.__KEYWORD__):
newToken = keyword(token)
parserState.PushState = cls.KEYWORDS[keyword]
parserState.NewToken = newToken
parserState.TokenMarker = newToken
return
if (tokenValue == "end"):
parserState.NewToken = EndKeyword(token)
parserState.TokenMarker = parserState.NewToken
parserState.NextState = EndBlock.stateEndKeyword
return
raise TokenParserException(
"Expected one of these keywords: END, {keywords}. Found: '{tokenValue}'."
.format(keywords=", ".join(
[kw.__KEYWORD__.upper() for kw in cls.KEYWORDS]),
tokenValue=token.Value), token)
def stateWhitespace1(cls, parserState: ParserState):
token = parserState.Token
if (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):
# TODO: review this linebreak case
parserState.NewBlock = LinebreakBlock(parserState.LastBlock, token)
parserState.TokenMarker = None
return
elif isinstance(token, CommentToken):
parserState.NewBlock = CommentBlock(parserState.LastBlock, token)
parserState.TokenMarker = token
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 ';'.", token)
def stateColon1(cls, parserState: ParserState):
token = parserState.Token
if isinstance(token, StringToken):
try:
parserState.NewToken = cls.MODES[token.Value.lower()](token)
parserState.NextState = cls.stateModeKeyword
return
except KeyError:
parserState.NewToken = IdentifierToken(token)
parserState.NextState = cls.stateSubtypeIndication
return
elif isinstance(token, SpaceToken):
parserState.NewToken = BoundaryToken(token)
parserState.NextState = cls.stateWhitespace3
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.stateWhitespace3
return
raise TokenParserException(
"Expected subtype indication or whitespace after colon.", token)
