A wee Schwartzian transform should do it 
my @unsorted = qw/Psdf lPik Easd aKwe SSdf eqwer scfgh Oegb rqwer T/;
print "pre sorted:  @unsorted\n";

my @sorted = map substr($_, 1),
             sort map { /^[a-z]/ ? "A$_" : "B$_" } @unsorted;

print "post sorted: @sorted\n";

__output__

pre sorted:  Psdf lPik Easd aKwe SSdf eqwer scfgh Oegb rqwer T
post sorted: aKwe eqwer lPik rqwer scfgh Easd Oegb Psdf SSdf T

[download]
See. japhy's Resorting to Sorting for more information on Schwartzian transforms and other sorting techniques.
HTH

_________
broquaint

In reply to Re: criteria based array sorting by broquaint
in thread criteria based array sorting by zentara

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