>I'm still somewhat ambivalent about this, myself. My previous
>experience with hyphens in identifiers is chiefly in languages that
>don't generally have algebraic expressions, e.g. LISP, XML, so it will
>take some getting used to in Perl. But at least in Perl's case the
>subtraction conflict is mitigated by the fact that many subtraction
>expressions will involve sigils; $x-$y can't possibly be a single
>identifier.
People use nonadic functions (nonary operators? where non = 0, not 9)
without parens, and get themselves into trouble for it.
% perl -E 'say time-time'
0
% perl -E 'say time-do{sleep 3; time}'
-3
% perl -E 'say time +5'
1218475824
% perl -E 'say time -5'
1218475817
% perl -E 'say time(-5)'
syntax error at -e line 1, near "(-"
Execution of -e aborted due to compilation errors.
Exit 19
--tom
