On Fri, 12 Apr 2002, Miko O'Sullivan wrote:
> SUMMARY
>
> A way to declare public names for params irrelevant to the internal variable
> names:
>
> sub load_data (-filename $filename_tainted ; 'version' 'ver'
> $version_input / /= 1) {...}
I like it. It's clean (doesn't introduce any wierd operators or keywords,
or abuses of existing ones) and logical. I think it could be rather
useful for the user of the function. I have a tendency to remember single
letters better than entire names, so a nice (or mean from a readability
standpoint) module writer could say:
sub head ( $data ; -n 'number_of_lines' $lines //= 10) {...}
And I could just remember to call
head($foo, -n => 25)
instead of positional or the long number_of_lines thingy.
Of course I don't know if I'd like people who named things just
'number_of_lines'. That destroys perls wonderful terseness.
> Setting names wouldn't be required. If they aren't set, then Perl uses the
> name of the variable. One question would be if the variable name is still
> used as the name for a param. My inclination is no: declaring them means
> you want the declared name, not the private name. If you want all the
> names, you declare them all.
I like your inclination too.
Luke
