-cat >Beer.perl <<\EOT
-package Beer;
-
-use strict;
-use warnings;
-use parent qw(Exporter);
-our @EXPORT_OK = qw(round finalround);
-
-sub other; # forward declaration
-
-# hello
-
-sub round {
- my ($n) = @_;
- print "$n bottles of beer on the wall ";
- print "$n bottles of beer\n";
- print "Take one down, pass it around, ";
- $n = $n - 1;
- print "$n bottles of beer on the wall.\n";
-}
-
-sub finalround
-{
- print "Go to the store, buy some more\n";
- print "99 bottles of beer on the wall.\n");
-}
-
-sub withheredocument {
- print <<"EOF"
-decoy here-doc
-EOF
- # some lines of context
- # to pad it out
- print "hello\n";
-}
-
-__END__
-
-=head1 NAME
-
-Beer - subroutine to output fragment of a drinking song
-
-=head1 SYNOPSIS
-
- use Beer qw(round finalround);
-
- sub song {
- for (my $i = 99; $i > 0; $i--) {
- round $i;
- }
- finalround;
- }
-
- song;
-
-=cut
-EOT
-sed -e '
- s/hello/goodbye/
- s/beer\\/beer,\\/
- s/more\\/more,\\/
- s/song;/song();/
-' <Beer.perl >Beer-correct.perl