Class LetterState


  • public final class LetterState
    extends AbstractParserState
    This parser state checks consumed characters against a specific character.
    • Field Detail

      • noMatchState

        private final AbstractParserState noMatchState
        Next state if not match is found.
      • thisLetter

        private final char thisLetter
        Character to match.
    • Constructor Detail

      • LetterState

        public LetterState​(AbstractParser parser,
                           char matchLetter,
                           AbstractParserState nextStateArg,
                           AbstractParserState noMatchStateArg)
        Constructor.
        Parameters:
        parser - parser
        matchLetter - letter to match
        nextStateArg - next state if a match on the letter
        noMatchStateArg - state if no match on letter
    • Method Detail

      • consume

        public AbstractParserState consume​(char ch)
        Consumes a character and returns the next state for the parser.
        Specified by:
        consume in class AbstractParserState
        Parameters:
        ch - next character
        Returns:
        the configured nextState if ch is the expected character or the configure noMatchState otherwise.