Enum Class TokenTypes

Method Details

• values

  public static TokenTypes[] values()

  Returns an array containing the constants of this enum class, in the order they are declared.

  Returns:

  an array containing the constants of this enum class, in the order they are declared

• valueOf

  public static TokenTypes valueOf(String name)

  Returns the enum constant of this class with the specified name. The string must match exactly an identifier used to declare an enum constant in this class. (Extraneous whitespace characters are not permitted.)

  Parameters:

  name - the name of the enum constant to be returned.

  Returns:

  the enum constant with the specified name

  Throws:

  IllegalArgumentException - if this enum class has no constant with the specified name

  NullPointerException - if the argument is null

• tokens

  public static Lexer.Tokens<TokenTypes> tokens()

• quoteText

  public static String quoteText(String text)

  Returns:

  a source representation of the given text that can be safely lexed as STRING

• quoteTextIfNeeded

  public static String quoteTextIfNeeded(String text)

  Will wrap text in single quotes if it is not already so that it could be parsed as a Riskscape string literal expression. Useful for cases where the user isn't sure if they need to enter quotes or not, and we don't want to double-quote

• quoteIdent

  public static String quoteIdent(String token)

  Returns:

  a source representation of the given identifier that can be safely lexed as either an IDENTIFIER or as a QUOTED_IDENTIFIER

• stripQuotes

  public static String stripQuotes(String id)

  Returns:

  id with any wrapping quotes (either single or double) removed

• identToken

  public static Token identToken(String identifier)

  Returns:

  an identifier token, one of QUOTED_IDENTIFIER or IDENTIFIER, depending on whether the given identifier needs quoting or not. Takes care to construct the token with the correct source representation (quoted) as well as the correct unquoted value.

• matcher

  public TokenMatcher matcher()

  Specified by:

  matcher in interface TokenType

  Returns:

  a TokenMatcher that is used to match tokens of this type. Note that matchers might actually match other tokens as well - the enum should declare the tokens in order of precedence so that the most specific are first

• isWhitespace

  public boolean isWhitespace()

  Specified by:

  isWhitespace in interface TokenType

  Returns:

  true if this is a whitespace type token