use HTML::TreeBuilder;
my $row_html = '
https://www.google.com
';
my $html = HTML::TreeBuilder->new;
$html->ignore_ignorable_whitespace(0);
$html->no_space_compacting(1);
$html->store_comments(1);
$html->parse($row_html);
# i will do some modifications to HTML here
my $output_html = $html->as_HTML(undef,undef,{});
print $output_html;