use open qw( :std :utf8 );
use experimental qw( lexical_subs );
-our $VERSION = '1.05';
+our $VERSION = '1.06';
use Getopt::Long '2.33', qw( :config gnu_getopt );
my %opt;
" (range expected)\n"
);
},
+ 'header!',
'markers|m=s',
'graph-format=s' => sub {
$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',
+ 'version' => sub {
+ say "barcat version $VERSION";
+ exit;
+ },
'usage|h' => sub {
local $/;
my $pod = readline *DATA;
$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{$_} = \&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;
} 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//;
);
}
+say sprintf '%*s-+%*s-+', $lenval, $minval, $size * ($maxval - $minval) - 3, $maxval if $opt{header};
+
while ($nr <= $#lines) {
$nr >= $opt{hidemax} and last if defined $opt{hidemax};
my $val = $values[$nr];
say '' if $opt{spark};
}
-show_lines();
-if ($opt{stat}) {
+sub show_stat {
if ($opt{hidemin} or $opt{hidemax}) {
$opt{hidemin} ||= 1;
$opt{hidemax} ||= @lines;
say '';
}
+sub show_exit {
+ show_lines();
+ show_stat() if $opt{stat};
+ exit 130 if @_; # 0x80+signo
+ exit;
+}
+
+show_exit();
+
__END__
=encoding utf8
or capture the numbers itself,
for example I<-f'(\d+)'> for the first digits anywhere.
+=item --header
+
+Prepend a chart axis with minimum and maximum values labeled.
+
=item -H, --human-readable
Format values using SI unit prefixes,
=back
+=item --spark[=<glyphs>]
+
+Replace lines by I<sparklines>,
+single characters corresponding to input values.
+A specified sequence of unicode characters will be used for
+Of a specified sequence of unicode characters,
+the first one will be used for non-values,
+the last one for the maximum,
+the second (if any) for the minimum,
+and any remaining will be distributed over the range of values.
+Unspecified, block fill glyphs U+2581-2588 will be used.
+
=item -s, --stat
Total statistics after all data.