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.

In reply to Re: How to write regex for special characters without using back slashes?? by soonix
in thread How to write regex for special characters without using back slashes?? by sumathigokul

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