Example #1
0
class XPathLexer(Lexer):

    atn = ATNDeserializer().deserialize(serializedATN())

    decisionsToDFA = [DFA(ds, i) for i, ds in enumerate(atn.decisionToState)]

    TOKEN_REF = 1
    RULE_REF = 2
    ANYWHERE = 3
    ROOT = 4
    WILDCARD = 5
    BANG = 6
    ID = 7
    STRING = 8

    modeNames = ["DEFAULT_MODE"]

    literalNames = ["<INVALID>", "'//'", "'/'", "'*'", "'!'"]

    symbolicNames = [
        "<INVALID>", "TOKEN_REF", "RULE_REF", "ANYWHERE", "ROOT", "WILDCARD",
        "BANG", "ID", "STRING"
    ]

    ruleNames = [
        "ANYWHERE", "ROOT", "WILDCARD", "BANG", "ID", "NameChar",
        "NameStartChar", "STRING"
    ]

    grammarFileName = "XPathLexer.g4"

    def __init__(self, input=None):
        super().__init__(input)
        self.checkVersion("4.6")
        self._interp = LexerATNSimulator(self, self.atn, self.decisionsToDFA,
                                         PredictionContextCache())
        self._actions = None
        self._predicates = None

    def action(self, localctx: RuleContext, ruleIndex: int, actionIndex: int):
        if self._actions is None:
            actions = dict()
            actions[4] = self.ID_action
            self._actions = actions
        _action = self._actions.get(ruleIndex, None)
        if _action is not None:
            _action(localctx, actionIndex)
        else:
            raise Exception("No registered action for:" + str(ruleIndex))

    def ID_action(self, localctx: RuleContext, actionIndex: int):
        if actionIndex == 0:
            char = self.text[0]
            if char.isupper():
                self.type = XPathLexer.TOKEN_REF
            else:
                self.type = XPathLexer.RULE_REF
Example #2
0
 def getATNWithBypassAlts(self):
     serializedAtn = self.getSerializedATN()
     if serializedAtn is None:
         raise UnsupportedOperationException("The current parser does not support an ATN with bypass alternatives.")
     result = self.bypassAltsAtnCache.get(serializedAtn, None)
     if result is None:
         deserializationOptions = ATNDeserializationOptions()
         deserializationOptions.generateRuleBypassTransitions = True
         result = ATNDeserializer(deserializationOptions).deserialize(serializedAtn)
         self.bypassAltsAtnCache[serializedAtn] = result
     return result