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Postings from December 2004
Larry Wall wrote: > <>On Sat, Dec 04, 2004 at 08:55:00PM -0600, Rod Adams wrote: > > : $x ==<$foo>; # $x == <$foo>; $x = =<$foo>; > : @x <==<$foo>; # @x <= =<$foo>; @x <== <$foo>; > : $x//=<$foo>; # $x // =<$foo>; $x //= <$foo>; > : $x**=@y; # $x ** =@y; $x **= @y; > > In each of those cases the longest-token rule comes into effect. > That's not only consistent, but standard CompSci for the last 30 years > or so. The only person who will get burned on those is someone who > insists on *not* putting whitespace in front of unary = when it would > be ambiguous. I have negative sympathy for such people. <>Well said! Although I by no means dispute that longest token rule is a long term standard in language design, I will claim that many programmers, including myself before this, are unaware of it. So I will now change my concerns to: "The longest-token rule needs to be mentioned in S03, and explained in a future perlop.pod." -- Rod Adams