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First of all that doesn't work because shift returns a reference. You need it to dereference the first element into an array. Secondly you know I love a challenge..like 76 characters:
sub o{ ($c,$s,$")=@_;sub t{$_=pop;s/./~0+index"@$c",$&/ges;$_}sort{t($a)cmp t +$b}@$s }
(I have to waste 3 on removing spaces, dang.)

UPDATE
In 5.6.x it appears you need to spend another character:

sub o{ ($c,$s,$")=@_;sub t{$_=pop;s/./1e9+index"@$c",$&/ges;$_}sort{t($a)cmp +t$b}@$s }

UPDATE 2
Saving another character..back to 76.

sub o{ ($c,$s,$")=@_;sub t{s/./1e9+index"@$c",$&/ges;$_}sort{t($_=$a)cmp t$_= +$b}@$s }

UPDATE 3
Throwing in tadman's improvement, 75:

sub o{ ($c,*w,$")=@_;sub t{s/./1e9+index"@$c",$&/ges;$_}sort{t($_=$a)cmp t$_= +$b}@w }
(Note that chr returning 2 chars wouldn't make Unicode come out right. Hence I am keeping the 1e9 trick.)

In reply to Re (tilly) 3: Golf: Arbitrary Alphabetical Sorting by tilly
in thread Golf: Arbitrary Alphabetical Sorting by Masem

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