insert-parentheses ). move-over-close-and-reindent ).
The commands M-( (insert-parentheses ) and M-) (move-over-close-and-reindent ) are designed to facilitate a style of editing which keeps parentheses balanced at all times. M-( inserts a pair of parentheses, either together as in `()', or, if given an argument, around the next several sexps. It leaves point after the open parenthesis. The command M-) moves past the close parenthesis, deleting any indentation preceding it (in this example there is none), and indenting with LFD after it.
For example, instead of typing ( F O O ), you can type M-( F O O, which has the same effect except for leaving the cursor before the close parenthesis.
M-( may insert a space before the open parenthesis, depending on the syntax class of the preceding character. Set parens-dont-require-spaces to a non-nil value if you wish to inhibit this.