Larry Wall skribis 2005-06-14 14:54 (-0700):
> : [ 'a' .. 'e' ].join # "a b c d e"
> : [ 'a' .. 'e' ].cat # "abcde"
> I had forgotten that. Yes, there is a little something to be
> said for preserving the (mostly false) symmetry of split and join.
> I think I argued for .cat on the basis that it also gives us cat as
> a list operator. But these days that's just [~], so at the moment
> I'm inclined to stick with argumentless .join doing concatenation,
> especially since I'd like to undo the split(' ') special case anyway
> and use a different notation for word splitting.
Still, argumentless split probably defaults to something. And ' ' is a
good thing to default to, IMO. It doesn't have to be a special case. In
fact, it not being a special case makes the symmetry less false, and
would --if ' ' is the default-- make the case even stronger for join to
default to ' ' too.
Juerd
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