38 lines
731 B
Java
38 lines
731 B
Java
/*
|
|
* Name: Mike Cifelli
|
|
* Course: CIS 443 - Programming Languages
|
|
* Assignment: Lisp Parser
|
|
*/
|
|
|
|
package parser;
|
|
|
|
/**
|
|
* This class represents a SYMBOL in the PL-Lisp implementation.
|
|
*/
|
|
public class Symbol extends Atom {
|
|
|
|
/** This SYMBOL represents TRUE in the PL-Lisp implementation. */
|
|
public static final Symbol T = new Symbol("T");
|
|
|
|
/**
|
|
* Create a new SYMBOL with the specified text.
|
|
*
|
|
* @param text
|
|
* the text representing this SYMBOL
|
|
*/
|
|
public Symbol(String text) {
|
|
super(text.toUpperCase());
|
|
}
|
|
|
|
/**
|
|
* Test if this S-expression is a SYMBOL.
|
|
*
|
|
* @return
|
|
* <code>true</code>
|
|
*/
|
|
public boolean symbolp() {
|
|
return true;
|
|
}
|
|
|
|
}
|