Ingo Blechschmidt skribis 2005-09-21 14:47 (+0000): > my $pair = (a => 42); > say ~$pair; # "a\t42"? "a\t42\n"? "a 42"? > say +$pair; # 0 (pairs aren't numbers)? > # 42? > # 0 ("a" is not a number)? > # 0 (~$pair can't be used as a number)? > say ?$pair; # true (because 42 is true)? > # true (because pairs are always true)? > FWIW, I'd opt for ~$pair to be "a\t42", +$pair to be +(~$pair) [1], > and ?$pair to be always true.
Pairs are objects, thus references. I like your suggestions for ~$pair (though any separator except other \s characters would do) and ?$pair. I don't think +(~$pair) makes any sense, though. It's basically the same as +(~$pair.key). It's probably wise to avoid that $pair can be confused for its key or value. A good alternative is hard to find, though. I tend to prefer 1 at this moment (coincidentally, that's +?$pair). Juerd -- http://convolution.nl/maak_juerd_blij.html http://convolution.nl/make_juerd_happy.html http://convolution.nl/gajigu_juerd_n.html