silence warnings on spark

diff --git a/barcat b/barcat
index 879624860a84d679ba05b82a65492d4c5795a576..0fd06e240ad1a79e9adb2d31e2f405b62323b498 100755 (executable)
--- a/barcat
+++ b/barcat
@@ -210,7 +210,7 @@ my $lenval = $opt{'value-length'} // max map { length } @order;
 my $len    = defined $opt{trim} && $opt{trim} <= 0 ? -$opt{trim} + 1 :
        max map { length $values[$_] && length $lines[$_] }
                0 .. min $#lines, $opt{hidemax} || ();  # left padding
-my $size   = $range &&
+my $size   = defined $opt{width} && $range &&
        ($opt{width} - $lenval - $len) / $range;  # bar multiplication
 
 my @barmark;
@@ -267,7 +267,7 @@ while ($nr <= $#lines) {
        if ($opt{spark}) {
                say '' if $opt{width} and $nr and $nr % $opt{width} == 0;
                print color($color), $opt{spark}->[
-                       !$val ? 0 : # blank
+                       !$val || !$#{$opt{spark}} ? 0 : # blank
                        $val == $order[0] ? -1 : # max
                        $val == $order[-1] ? 1 : # min
                        $#{$opt{spark}} < 3 ? 1 :