X-Git-Url: http://git.shiar.net/barcat.git/blobdiff_plain/a0ff197f92a8630d87509509ad635c8f194fa29b..d91b9999c3add998accda17038ce123d0d5a73c1:/barcat

diff --git a/barcat b/barcat
index 650e406..a7c67ee 100755
--- a/barcat
+++ b/barcat
@@ -47,9 +47,10 @@ GetOptions(\%opt,
 		$opt{'graph-format'} = substr $_[1], 0, 1;
 	},
 	'spark:s' => sub {
-		$opt{spark} = [split //, $_[1] || '⎽▁▂▃▄▅▆▇█'];
+		$opt{spark} = [split //, $_[1] || '▁▂▃▄▅▆▇█'];
 	},
 	'stat|s!',
+	'signal-stat=s',
 	'unmodified|u!',
 	'width|w=i',
 	'usage|h' => sub {
@@ -84,14 +85,16 @@ $opt{units}   = [split //, ' kMGTPEZYyzafpnμm'] if $opt{'human-readable'};
 $opt{anchor} //= qr/\A/;
 $opt{'value-length'} = 6 if $opt{units};
 $opt{'value-length'} = 1 if $opt{unmodified};
+$opt{'signal-stat'} //= exists $SIG{INFO} ? 'INFO' : 'QUIT';
 
 my (@lines, @values, @order);
 
-$SIG{QUIT} = \&show_stat;
+$SIG{$_} = \&show_stat for $opt{'signal-stat'} || ();
 $SIG{ALRM} = sub {
 	show_lines();
 	alarm $opt{interval} if defined $opt{interval} and $opt{interval} > 0;
 };
+$SIG{INT} = \&show_exit;
 
 if (defined $opt{interval}) {
 	$opt{interval} ||= 1;
@@ -103,12 +106,6 @@ if (defined $opt{interval}) {
 	} or warn $@, "Expect slowdown with large datasets!\n";
 }
 
-$SIG{INT} = sub {
-	$SIG{INT} = 'DEFAULT';  # reset for subsequent attempts
-	exit if !$.;
-	'IGNORE' # continue after assumed eof
-};
-
 my $valmatch = qr/$opt{anchor} ( \h* -? [0-9]* \.? [0-9]+ (?: e[+-]?[0-9]+ )? |)/x;
 while (readline) {
 	s/\r?\n\z//;
@@ -219,7 +216,6 @@ continue {
 say '' if $opt{spark};
 
 }
-show_lines();
 
 sub show_stat {
 	if ($opt{hidemin} or $opt{hidemax}) {
@@ -239,7 +235,15 @@ sub show_stat {
 	}
 	say '';
 }
-show_stat() if $opt{stat};
+
+sub show_exit {
+	show_lines();
+	show_stat() if $opt{stat};
+	exit 130 if @_;  # 0x80+signo
+	exit;
+}
+
+show_exit();
 
 __END__
 =encoding utf8
@@ -352,6 +356,11 @@ or 68% of all entries.
 
 =back
 
+=item --spark
+
+Replace lines by I<sparklines>,
+single characters corresponding to input values.
+
 =item -s, --stat
 
 Total statistics after all data.