From: Mischa POSLAWSKY <perl@shiar.org>
Date: Sun, 8 Sep 2019 14:39:03 +0000 (+0200)
Subject: optional decimal point for human-readable integers
X-Git-Tag: v1.05~19
X-Git-Url: http://git.shiar.nl/barcat.git/commitdiff_plain/047d20c16603fb80b5abfe2fe1d1bb073e117eab

optional decimal point for human-readable integers

Retain input value precision.
---

diff --git a/barcat b/barcat
index bdddf65..a664d0d 100755
--- a/barcat
+++ b/barcat
@@ -143,10 +143,11 @@ if ($opt{markers} // 1 and $size > 0) {
 @lines > $nr or return if $opt{hidemin};
 
 sub sival {
-	my $unit = int(log($_[0]) / log(1000) - ($_[0] < 1));
-	my $float = $_[0] !~ /^ (?: 0*\.)? [0-9]{1,3} $/x;
+	my $unit = int(log($_[0]) / log(1000) - ($_[0] < 1) + 1e-15);
+	my $float = sprintf '%e', $_[0] / 1000 ** $unit;  #TODO: or $_[0] =~ /\./
+	$float -= int($float);
 	sprintf('%*.*f%*s',
-		$float ? 5 : 3, $float,  # length and tenths
+		$float ? (5,1) : (3,0),  # length and tenths
 		$_[0] / 1000 ** $unit,   # number
 		$float ? 0 : 3,          # unit size
 		$#{$opt{units}} >> 1 < abs $unit ? "e$unit" : $opt{units}->[$unit]