HL Variables

function EL-VAR? : (object)
Return T iff OBJECT is a symbol which can be interpreted as an EL variable.
Single value returned satisfies BOOLEANP. 

function VARIABLE-P : (object)
Return T iff OBJECT is an HL variable.
Single value returned satisfies BOOLEANP. 

function FIND-VARIABLE-BY-ID : (id)
Return the HL variable with ID, or NIL if not present.
ID must satisfy INTEGERP.
Single value returned satisfies VARIABLE-P or is NIL. 

function VARIABLE-ID : (variable)
Return id of HL variable VARIABLE.
VARIABLE must satisfy VARIABLE-P.
Single value returned satisfies INTEGERP. 

function DEFAULT-EL-VAR-FOR-HL-VAR : (variable)
Return a readable EL var from HL var VARIABLE.
VARIABLE must satisfy VARIABLE-P. 

function FULLY-BOUND-P : (object)
Return T iff OBJECT contains no HL variables, and therefore is fully bound.
Single value returned satisfies BOOLEANP. 

function VARIABLE-COUNT : ()
Return the total number of HL variables.
Single value returned satisfies INTEGERP.