On Thu, 8 Aug 2002, Juho Snellman wrote: > On Thu, Aug 08, 2002 at 08:31:44AM +0100, Stephen Turner wrote: > > So, the empty regexp lets $` escape. How did you discover > > that? Was it a brilliant insight, did you already know it, or was it (more > > likely, in my experience) a fluke born out of desparation? :-) > > *cough* I didn't know that the 'for' modifier created a lexical block. > Until Ton announced my "innovation", I thought that it acted just like > the 'while' modifier. :-) >
Ah yes, the good old "luck" approach! I have to admit I didn't even remember that $` was confined to the dynamic scope until I tried something like #!perl -l ($`%9e9*$_||1)=~/0*$/for 0..pop;print$`%10 # BROKEN! By the way, isn't it incredibly annoying that there isn't a single Perl variable which defaults to 1? (My UID is 1000, which would have worked well, but I doubted it met the "work everywhere" constraint. :-) -- Stephen Turner, Cambridge, UK http://homepage.ntlworld.com/adelie/stephen/ "This is Henman's 8th Wimbledon, and he's only lost 7 matches." BBC, 2/Jul/01
