Regex can be painful in cases which go beyond the low-lying, easy ones. Also, people have different innate skills. I am one who does not do so well remembering esoteric character combinations. I use regex frequently enough to understand how it works, and what I need, but without fail, I lack the "muscle memory" to just know what to type when doing much more complex than a simple match. This usually leads me to Google, or to a tool like this.
I have similar trouble with odd terminal commands and flags. I am not afraid of them, but it simply not part of my mental make-up to remember them all. The ones I use frequently - no problem. Those I use only occasionally - Google. :-)
Let's face it - regex IS HARD if you are not a regex "power user" or if you are the sort, like myself, whose mental map is not optimized for such things.
I have similar trouble with odd terminal commands and flags. I am not afraid of them, but it simply not part of my mental make-up to remember them all. The ones I use frequently - no problem. Those I use only occasionally - Google. :-)
Let's face it - regex IS HARD if you are not a regex "power user" or if you are the sort, like myself, whose mental map is not optimized for such things.