enable lexical subs before perl v5.26

[barcat.git] / graph

diff --git a/graph b/graph
index eaafb764d387a5f65514ed3fcb017e8763e62840..307c9e41d47bfc031ad0e897ee120d4c9c3a19f4 100755 (executable)
--- a/graph
+++ b/graph
@@ -1,9 +1,10 @@
 #!/usr/bin/env perl
-use 5.014;
+use 5.018;
 use warnings;
 use utf8;
 use List::Util qw( min max sum );
 use open qw( :std :utf8 );
+use experimental qw( lexical_subs );
 
 our $VERSION = '1.02';
 
@@ -39,7 +40,7 @@ $SIG{INT} = 'IGNORE';  # continue after assumed eof
 
 my (@lines, @values);
 while (readline) {
-       chomp;
+       s/\r?\n\z//;
        s/^\h*// unless $opt{unmodified};
        push @values, s/^ ( \h* -? [0-9]* \.? [0-9]+ |)//x && $1;
        if (defined $opt{trim}) {
@@ -53,13 +54,13 @@ while (readline) {
        }
        push @lines, $_;
 }
-@lines or exit;
 
 $SIG{INT} = 'DEFAULT';
 
 sub show_lines {
 
 state $nr = 0;
+@lines and @lines > $nr or return;
 
 my @order  = sort { $b <=> $a } grep { length } @values;
 my $maxval = $order[0];