Cupidvogel
Novice
May 4, 2012, 5:30 AM
Post #1 of 2
(507 views)
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$MATCH not working like $`
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Can't Post
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Hi, as per the Perlvar manpage, the $PREMATCH variable (alongwith @- and @+ arrays) was meant to do the same thing as $` without the performance overload of the latter. However, when I try the following code:
$a = "abc123dfv";
if ($a =~ m/\d+/) {
print "Yep: $PREMATCH \n";
}
Nothing gets printed after Yep:, whereas if I run this:
$a = "abc123dfv";
if ($a =~ m/\d+/) {
print "Yep: $` \n";
}
I get the usual result: Yep: abc. Can anybody explain it?
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