Been working on this problem and can't find my error. I'm trying to use the m modifier to read a large text in line by line. I want to use the inline form, (?m) rather than following the regex slash with m.

#!/usr/bin/perl
use strict;
use warnings;
use feature 'say';

my $s = <<'EOF';
int t; //variable t
t->a=0;  //t->a does;; something
printf("\nEnter the Employee ID : ");
scanf("%d", ptrx->eid);  //employee id ptrx->eid
printf("\nEnter the Employee Name : ");
scanf("%s", ptr->name);
return 0;
EOF

for my $line (split/(?m)\n(?=$)/, $s) {
    say '<' . $line . '>';    
}
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C:\Old_Data\perlp>perl test3.pl
<int t; //variable t
t->a=0;  //t->a does;; something
printf("\nEnter the Employee ID : ");
scanf("%d", ptrx->eid);  //employee id ptrx->eid
printf("\nEnter the Employee Name : ");
scanf("%s", ptr->name);
return 0;>
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Update: It works ok without the extra specifiers if i just do for my $line (split/\n/, $s)

But wondering why.