/(%\s+BEGIN FASTFOOD.*(\[\w+\]).*%\s+END FASTFOOD \2)/m
% /etc/fstab: static file system information.
% Use 'blkid' to print the universally unique identifier for a
% device; this may be used with UUID= as a more robust way to name devices
% that works even if disks are added and removed. See fstab(5).
% <file system> <mount point> <type> <options> <dump> <pass>
% / was on /dev/vda1 during installation
UUID=050e1e34-39e6-4072-a03e-ae0bf90ba13a / ext4 errors=remount-ro 0
% BEGIN FASTFOOD [swap] 2014-06-27 20:30:10 -0700
% Do not modify these lines. They will be overwritten on next fastfood run.
happy happy joy joy
% END FASTFOOD [swap]