shithub: riscv

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newt: improve input filtering

--- a/rc/bin/newt

+++ b/rc/bin/newt

@@ -154,8 +154,10 @@

 	cmd=`{read}

 	switch($cmd){

 	case [0-9]*

-		post=$cmd(1)

-		printp $post

+		if(grep -s -e '^[0-9]+$' <{echo $cmd(1)}){

+			post=$cmd(1)

+			printp $post

+		}

 	case b

 		if(! ~ $post $posts(1)){

 			post=`{echo $post^-1 | bc}