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# -*- perl -*-
use strict;
use Set::IntSpan 1.17 qw(grep_spans map_spans);
my $N = 1;
sub Not { print "not " }
sub OK { print "ok ", $N++, "\n" }
my @Sets = split(' ', q{ - (-) (-0 0-) 1 5 1-3 3-7 1-3,8,10-23 1-3,8,10-23,30-) });
sub long_span
{
my($l, $u) = @$_;
not defined $l or
not defined $u or
$u-$l > 3
}
sub short_span
{
my($l, $u) = @$_;
defined $l and
defined $u and
$u-$l < 3
}
my @Greps = ('0', '1', 'long_span', 'short_span');
sub mirror
{
my($l, $u) = @$_;
if ( defined $l and defined $u) { return [ -$u , -$l ] }
elsif (not defined $l and defined $u) { return [ -$u , undef ] }
elsif ( defined $l and not defined $u) { return [ undef, -$l ] }
else { return [ undef, undef ] }
}
sub mirror_mirror
{
my($l, $u) = @$_;
if ( defined $l and defined $u) { return [ -$u , -$l ], [ $l , $u ] }
elsif (not defined $l and defined $u) { return [ -$u , undef ], [ undef , $u ] }
elsif ( defined $l and not defined $u) { return [ undef, -$l ], [ $l , undef] }
else { return [ undef, undef ], [ undef, undef ] }
}
sub double_up
{
my($l, $u) = @$_;
if ( defined $l and defined $u) { return [ 2*$l , 2*$u ] }
elsif (not defined $l and defined $u) { return [ undef, 2*$u ] }
elsif ( defined $l and not defined $u) { return [ 2*$l, undef ] }
else { return [ undef, undef ] }
}
sub stretch_up
{
my($l, $u) = @$_;
if ( defined $l and defined $u) { return [ $l , $u+5 ] }
elsif (not defined $l and defined $u) { return [ undef, $u+5 ] }
elsif ( defined $l and not defined $u) { return [ $l , undef ] }
else { return [ undef, undef ] }
}
my @Maps = ('()', '$_', 'mirror', 'mirror_mirror', 'double_up', 'stretch_up');
print "1..", @Sets * (@Greps + @Maps), "\n";
Grep();
Map ();
sub Grep
{
print "#grep_span\n";
my @expected =
(['-', ' - ', ' - ', ' - ', '-', '-', ' - ', ' - ', ' - ', ' - '],
['-', '(-)', '(-0', '0-)', '1', '5', '1-3', '3-7', '1-3,8,10-23', '1-3,8,10-23,30-)'],
['-', '(-)', '(-0', '0-)', '-', '-', ' - ', '3-7', ' 10-23', ' 10-23,30-)'],
['-', ' - ', ' - ', ' - ', '1', '5', '1-3', ' - ', '1-3,8 ', '1-3,8, '],
);
for (my $g=0; $g<@Greps; $g++)
{
for (my $s=0; $s<@Sets; $s++)
{
my $set = new Set::IntSpan $Sets[$s];
my $result = grep_spans { eval $Greps[$g] } $set;
my $expected = new Set::IntSpan $expected[$g][$s];
printf "#%3d: grep_span { %-8s } %-20s -> %s\n",
$N, $Greps[$g], $Sets[$s], $result->run_list;
equal $result $expected or Not; OK;
}
}
}
sub Map
{
print "#map_span\n";
my @expected =
(['-', ' - ', ' - ', ' - ', ' -', ' -', ' - ' , ' - ', ' - ', ' - '],
['-', '(-)', '(-0', '0-)', ' 1', ' 5', ' 1-3' , ' 3-7 ', ' 1-3,8,10-23 ', ' 1-3,8,10-23,30-) '],
['-', '(-)', '0-)', '(-0', '-1', '-5', '-3--1', '-7--3', '-23--10,-8,-3--1', '(--30,-23--10,-8,-3--1'],
['-', '(-)', '(-)', '(-)', '-1,1', '-5,5', '-3--1,1-3', '-7--3,3-7 ',
'-23--10,-8,-3--1,1-3,8,10-23', '(--30,-23--10,-8,-3--1, 1-3,8,10-23,30-)'],
['-', '(-)', '(-0', '0-)', ' 2', ' 10', '2-6', '6-14', '2-6,16,20-46', '2-6,16,20-46,60-)' ],
['-', '(-)', '(-5', '0-)', ' 1-6', '5-10', ' 1-8', '3-12', '1-28' , '1-28,30-)' ],
);
for (my $g=0; $g<@Maps; $g++)
{
for (my $s=0; $s<@Sets; $s++)
{
my $set = new Set::IntSpan $Sets[$s];
my $result = map_spans { eval $Maps[$g] } $set;
my $expected = new Set::IntSpan $expected[$g][$s];
printf "#%3d: map_span { %-8s } %-20s -> %s\n",
$N, $Maps[$g], $Sets[$s], $result->run_list;
equal $result $expected or Not; OK;
}
}
}
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