commit c01463a300aee951bd8364979b23b9e6ea102f94
from: Omar Polo <op@omarpolo.com>
date: Wed Aug 04 16:44:38 2021 UTC

add multiline consts

now it's possible to do also things like

	const (
		one = 1
		two = 2
		...
	)

instead of

	const one = 1
	const two = 2
	...

commit - afb311959eec920dbda96d86b42aa30ac55f1662
commit + c01463a300aee951bd8364979b23b9e6ea102f94
blob - 9640f09cd4866ccc1202135638947c519d9954bd
blob + 1f6f44dd273ab1a61844f7bff72279c7b9e6f5c3
--- np.y
+++ np.y
@@ -115,6 +115,8 @@ optnl		: '\n' optnl		/* zero or more newlines */
 		| /*empty*/
 		;
 
+nl	: '\n' optnl ;
+
 include : INCLUDE STRING {
 		struct file	*nfile;
 
@@ -130,14 +132,21 @@ include : INCLUDE STRING {
 	}
 	;
 
-const	: CONST SYMBOL '=' literal {
-		if (!global_set($2, $4)) {
+const	: CONST consti
+	| CONST '(' optnl mconst optnl ')'
+	;
+
+mconst	: consti nl | mconst consti nl ;
+
+consti	: SYMBOL '=' expr {
+		if (!global_set($1, $3)) {
 			yyerror("constant expression is not a literal");
-			free($2);
-			free_op($4);
+			free($1);
+			free_op($3);
 			YYERROR;
 		}
-};
+	}
+	;
 
 var	: SYMBOL '=' expr	{ $$ = op_assign($1, $3); }	;
 varref	: SYMBOL		{ $$ = op_var($1); }		;