Re: Regex Search String in a Variable

Hello roho,

> Note: I tried running the search string variable through the "qr" function, but that did not help.

qr helps

#!/usr/bin/perl
use strict;
use warnings;

my ($text, $search);

$text = "\\x1\\x2\\x3\\x4";
$search = qr/x2\\.+\\x4/;

print "\nUsing variable in regex: (qr)\n";
print "Before: text = $text\n";
$text =~ s/$search/new/;
print " After: text = $text\n";

__END__

Using variable in regex: (qr)
Before: text = \x1\x2\x3\x4
 After: text = \x1\new
[download]

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Comment on Re: Regex Search String in a Variable Select or Download Code

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Re^2: Regex Search String in a Variable by roho (Bishop) on May 01, 2021 at 20:59 UTC
Thanks Discipulus. I now see the reason my qr didn't work. It was because I first assigned the search string to the variable, then reassigned the variable (run through qr) to itself, which did not double the backslashes. `my $search = "x2\\.+\\x4"; $search = qr($search);` [download] "It's not how hard you work, it's how much you get done."	[reply] [d/l]