In a test script, I am trying to match a line using like(), which requires the qr// form of regex. However, the /m modifier does not seem to work. A sample script illustrating the problem follows:

!/usr/bin/env perl

use strict;
use warnings;

use Test::More qw(no_plan);

my $string = "abc\ndef\nghi";

# (1) Passes
like($string, qr/def/m, 'found def');
# (2) Passes
like($string, qr/^def/m, 'found ^def');
# (3) Fails
like($string, qr/def$/m, 'found def$');
# (4) Fails - this is the test I want to run
like($string, qr/^def$/m, 'found ^def$');
# (5) Passes
ok(($string =~ m/^def$/m), 'found ^def$');
# (6) Passes - supposedly the equivalent of (4)?
ok(($string =~ m/(?m-xis:^def$)/), 'found ^def$');

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In this toy example, I am looking for a line matching (exactly) 'def' within the string. It may be the first line, the last line (without a newline), or anywhere in between. In this example, it is in the middle.

My ideal match would be qr/^def$/m (test 4), but it does not seem to work. The fact that (2) passes, and (3) fails leads me to believe that it is just the '$' that has the problem.

I would much appreciate if anyone could enlighten me as to what I am doing wrong.

Thanks,
Gary

In reply to Use of qr// modifier with Test::More::like by gary.monson

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