Hi Randal, On Thu, 25 Aug 2011 11:41:34 -0700 mer...@stonehenge.com (Randal L. Schwartz) wrote:
> >>>>> "Shlomi" == Shlomi Fish <shlo...@shlomifish.org> writes: > > Shlomi> Well, I believe I've always avoided using an implicit $_ as > Shlomi> preventative measure (out of thinking I know better) and so cannot > Shlomi> present such a case first-hand. However, see: > > Shlomi> http://www.forum2.org/gaal/perl/Pitfall/slide001.html - “A $_ > Shlomi> Gotcha”. > > Ahh, so the break was *someone else's* code, not the coder's fault. > Well, it affected the coder, because they were dependant on using $_. > At that level, anything can go wrong... we can't code completely > defensively presuming everything else is idiotic. Well, coding defensively is a good idea within reason. > So I'm still wondering why you have excessive paranoia about *your* code > accidentally breaking $_. How did *you* get burned "accidentally" as > you claim? > Where do you see that you claim that I got burned accidentally? > If not, please stop suggesting that other people change their behavior > when using $_ *as designed* is a perfectly acceptable practice. It > makes Perl seem scarier than it is. (A lot of those PBPs are like that, > but I won't open that can of worms here.) If you want to use $_ so be it, but it can easily introduce subtle errors into your code, because $_ is so easy to modify and clobber. So I would recommend against these, and still think it's a good idea. > > print "Just another Perl hacker,"; # the original > Well, the text here may not be displayed on the shell (or displayed on the same line as the following prompt.). :-) Regards, Shlomi Fish -- ----------------------------------------------------------------- Shlomi Fish http://www.shlomifish.org/ The Case for File Swapping - http://shlom.in/file-swap COBOL is the old Java. Please reply to list if it's a mailing list post - http://shlom.in/reply . -- To unsubscribe, e-mail: beginners-unsubscr...@perl.org For additional commands, e-mail: beginners-h...@perl.org http://learn.perl.org/
