GQE

Lisp Language

An example with a simple grammar designed to specify the Lisp language.

• Grammar Code



/** A grammar for Lisp Language written in ANTLR v4.
*/
grammar LispGIC;

lisp 
	: sExp
	;

sExpList 
	: sExp sExpList
	| 
	;

sExp
	: NUM
	| WRD
	| '(' sExpList ')'
	;


NUM : ('0'..'9')+
    ;

WRD : ('a'..'z')+
    ;

WS : (' ' | '\t' | '\n' | '\r' ) { channel=HIDDEN; };
	

• Results




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Lexicographic Metrics

Clear Identifiers for Terminals and Non-terminals metric is shown.



Quality Report

Quality Evaluations generated automatically by GQE for this grammar.