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Class epp.LiteralToken

java.lang.Object
   |
   +----epp.Token
           |
           +----epp.LiteralToken

public class LiteralToken

extends Token

All literals are described as instances of this class. The type of a literal is expressed by data of type Symbol, and information about the contents of a literal is expressed by data of type String called literalContents.

Examples:
123       (int "123")
1.2       (double "1.2")
"abc"     (string "abc")
"\n"      (string "\\n")
'c'       (char "c")

See Also:

Token

LiteralToken(Symbol, String)

isLiteralToken()

Returns true is this token is LiteralToken, false otherwise.

literalContents()

Returns literalContents if this token is a LiteralToken.

literalTag()

Returns literalTag if this token is a LiteralTag.

toString()

Converts a LiteralToken into a String for debugging.

 public LiteralToken(Symbol tag,
                     String contents)

 public boolean isLiteralToken()

Returns true is this token is LiteralToken, false otherwise.

Overrides:

isLiteralToken in class Token

 public Symbol literalTag()

Returns literalTag if this token is a LiteralTag. If this token is not a LiteralTag, a fatal error occurs.

Overrides:

literalTag in class Token

 public String literalContents()

Returns literalContents if this token is a LiteralToken. If this token is not a LiteralToken, a fatal error occurs.

Overrides:

literalContents in class Token

 public String toString()

Converts a LiteralToken into a String for debugging. It converts the literalTag and literalContens into a string, enclosing them together within parentheses. For example, a LiteralToken that expresses 123 will converted into a string such as "(int \"123\")".

Overrides:

toString in class Object

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