Actually, from man perlop:
qr/STRING/imosx
This operator quotes (and possibly compiles) its
STRING as a regular expression. STRING is inter
polated the same way as PATTERN in "m/PATTERN/".
If "'" is used as the delimiter, no interpolation
is done. Returns a Perl value which may be used
instead of the corresponding "/STRING/imosx"
expression.
A little experiment:
use strict
my %a = (qr/(.+)pippo/, 1);
print keys %a;
prints out
(?-xism:(.+)pippo), which can be used in the matching part of a regex, while
use strict;
my %a = (1,2);
my %b = (\%a, 3);
for (keys %b) { print %$_ };
dies with error
Can't use string ("HASH(0x81005ac)") as a HASH ref while "strict refs" in use at - line 5.
The stupider the astronaut, the easier it is to win the trip to Vega - A. Tucket | [reply]
[d/l]
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Ok, I'm confused. I made the corrections and it works fine now, with no errors even using the strict and warning pragmas. Shouldn't it fail to work? | [reply] |
qr creates a Regexp reference.
I've never heard of a regex reference? Could you give me a pointer to the docs on that?
Okay you lot, get your wings on the left, halos on the right. It's one size fits all, and "No!", you can't have a different color.
Pick up your cloud down the end and "Yes" if you get allocated a grey one they are a bit damp under foot, but someone has to get them.
Get used to the wings fast cos its an 8 hour day...unless the Govenor calls for a cyclone or hurricane, in which case 16 hour shifts are mandatory.
Just be grateful that you arrived just as the tornado season finished. Them buggers are real work.
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