deprecate %matching_marks

[white-dragon]

here two simple (same) patches:

--- tabbedex.utf8	2019-12-29 21:02:07.025578848 +0300
+++ tabbedex	2019-12-29 21:35:42.596547420 +0300
@@ -1011,11 +1011,11 @@
 	my $root = shift;
 	my $timeouts = shift // '';
 	my $re = qr/(?:\d+)?\.\d+|\d+/;
-	$re = eval { qr/\G($re):(\X)(?::|$)/ } // qr/\G($re):(.)(?::|$)/;
+	$re = eval { qr/\G($re):(\X)(\X)?(?::|$)/ } // qr/\G($re):(.)(.)?(?::|$)/;
 	my @timeouts;
 	while ($timeouts =~ /$re/g) {
 		my $left = $root->special_encode($2);
-		push @timeouts, [$1 + 0, $left, $matching_marks{$2} // $left];
+		my $right = $root->special_encode($3) if defined $3;
+		push @timeouts, [$1 + 0, $left, $right // $matching_marks{$2} // $left];
 	}
 	@timeouts = sort { $b->[0] <=> $a->[0] } @timeouts;
 	if (!@timeouts || $timeouts[$#timeouts][0] > 0) {

and

--- tabbedex.utf8	2019-12-29 21:02:07.025578848 +0300
+++ tabbedex	2019-12-29 22:10:05.096447474 +0300
@@ -1005,17 +1005,16 @@
 
 {
 
-my %matching_marks = ('[' => ']', '{' => '}', '(' => ')', '<' => '>');
-
 sub parse_timeouts {
 	my $root = shift;
 	my $timeouts = shift // '';
 	my $re = qr/(?:\d+)?\.\d+|\d+/;
-	$re = eval { qr/\G($re):(\X)(?::|$)/ } // qr/\G($re):(.)(?::|$)/;
+	$re = eval { qr/\G($re):(\X)(\X)?(?::|$)/ } // qr/\G($re):(.)(.)?(?::|$)/;
 	my @timeouts;
 	while ($timeouts =~ /$re/g) {
 		my $left = $root->special_encode($2);
-		push @timeouts, [$1 + 0, $left, $matching_marks{$2} // $left];
+		my $right = $root->special_encode($3) if defined $3;
+		push @timeouts, [$1 + 0, $left, $right // $left];
 	}
 	@timeouts = sort { $b->[0] <=> $a->[0] } @timeouts;
 	if (!@timeouts || $timeouts[$#timeouts][0] > 0) {

1st just add functional, 2nd also remove useless %matching_marks (but broke backward compatibility (does any one use it?))

now u can use any pairs of 'brackets'
for example :URxvt.tabbedex.tabbar-timeouts: 0:)(:1:}{:2:][:3:><
or something like this, after patching utf8 (#29):
URxvt.tabbedex.tabbar-timeouts: 0:⣿:1:⣟⣻:2:⢯⡽:3:⢵⡺:4:⡬⡓:5:⢔⠙:6:⠌⢂:7:·

ps: im going write generator of blowing tabs :)