http://www.perlmonks.org?node_id=1127449


in reply to How to write regex for special characters without using back slashes??

I don't quite understand your requirements. Possibly this is because English is not my native language, but I fear it is unclear even to the native speakers.
My impression is, that you haven't yet thought it completely through yourself.

I recommend the teddy bear approach, that is, try to explain to a random person, who should   not   be an expert, what it is you want to do and how you think it should be done.

Update 2015-07-02: I just learnt that the "official" name of this technique is rubber duck debugging.