I love regular expressions. I would love to be an active contributer to this forum. Unfortunately, the software which runs this forum is wholely unusable. I joined up and contributed a few solutions, but will be leaving now due to the bugs in the UI.

Its unfortunate, because there are very few forums on the internet which are dedicated to regex. 

The regular expression which matches the facts supporting your remark is

$^

And this is pcre compliant.

Thanks for the feed back, but a feed back without facts will be ignored by the moderator, I guess.