transcendental-lisp/parser/Symbol.java

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2016-12-07 14:16:45 -05:00
/*
* 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;
}
}