Highlighting and typing "(" should clear the contents instead of wrapping

[eluberoff]

Too many times I've watched people highlight (2,3) and type ( expecting to get blank parens and instead getting ((2,3)).

Because it's so easy to open and close parens, it doesn't feel like highlight & type should wrap (like we do with square roots and fractions).

Final proposed designs:

If the highlighted content is wrapped in parentheses and you type the same kind of parentheses, it erases the content and you're left with empty (and hardened) parentheses instead of double-paren-wrapping the contents.

[mikehaverstock]

I personally like the version that checks if it's already paren wrapped

[eluberoff]

+1 from Christopher & Yanna