integer sinewave test data input

[barcat.git] / barcat

diff --git a/barcat b/barcat
index 15a2269c9829079d81e0b86368e9a398e3d566f4..804b3b074b8c54ba005c61ffdd1ffb32c73b01a4 100755 (executable)
--- a/barcat
+++ b/barcat
@@ -52,8 +52,22 @@ GetOptions(\%opt,
        'spark:s' => sub {
                $opt{spark} = [split //, $_[1] || '▁▂▃▄▅▆▇█'];
        },
-       'palette:s' => sub {
-               $opt{palette} = [ split /\s/, $_[1] ];
+       'palette=s' => sub {
+               $opt{palette} = {
+                       fire   => [qw( 90 31 91 33 93 97 96 )],
+                       fire88 => [map {"38;5;$_"} qw(
+                               80  32 48 64  68 72 76  77 78 79  47
+                       )],
+                       fire256=> [map {"38;5;$_"} qw(
+                               235  52 88 124 160 196
+                               202 208 214 220 226  227 228 229 230 231  159
+                       )],
+                       ramp88 => [map {"38;5;$_"} qw(
+                               64 65 66 67 51 35 39 23 22 26 25 28
+                       )],
+                       whites => [qw( 1;30 0;37 1;37 )],
+                       greys  => [map {"38;5;$_"} 52, 235..255, 47],
+               }->{$_[1]} // [ split /[^0-9;]/, $_[1] ];
        },
        'stat|s!',
        'signal-stat=s',
@@ -87,7 +101,7 @@ GetOptions(\%opt,
        },
 ) or exit 64;  # EX_USAGE
 
-$opt{width} ||= $ENV{COLUMNS} || 80;
+$opt{width} ||= $ENV{COLUMNS} || qx(tput cols) || 80;
 $opt{color} //= -t *STDOUT;  # enable on tty
 $opt{'graph-format'} //= '-';
 $opt{trim}   *= $opt{width} / 100 if $opt{trimpct};
@@ -396,7 +410,7 @@ Bars extend from 0 or the minimum value if lower,
 to the largest value encountered.
 These options can be set to customize this range.
 
-=item --palette=<color>...
+=item --palette=(<preset> | <color>...)
 
 Override colors of parsed numbers.
 Can be any CSI escape, such as I<90> for default dark grey,