At 11:43 PM -0400 8/16/11, shawn wilson wrote:
On Aug 16, 2011 9:48 PM, "John W. Krahn" <jwkr...@shaw.ca> wrote:
Joseph L. Casale wrote:
What is the correct way to quickly assign the result of a regex against
a cmdline arg into a new variable:
my $var = ($ARGV[0] =~ s/(.*)foo/$1/i);
my ( $var ) = $ARGV[0] =~ /(.*)foo/i;
IIRC, that rederines $ARGV as well. I think (my $var = $ARGV) =~ /(.+)foo/;
might be better.
The binding operator =~ does not modify the variable on its left-hand
side if the expression on the right-hand side is a regular
expression. The substitute operator (s///) does that. The only thing
modified are the various data elements associated with evaluating a
regular expression, including, in this instance, the global $1
variable.
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