Inserting parens before other parens

[jonashaag]

Current behaviour:

Before        Input         After
------------------------------------
|()           (             (|)()

Sometimes it's the right thing to insert the closing parenthesis as well, but sometimes it's not what the user wants. I believe the following outcomes are legitimate use cases:

      Before        Input         After
------------------------------------
(1)   |(...)        (             (|)(...)
(2)   |(...)        foo(          (|(...)
(3)   |(...)        foo(          (|(...))

• Example for case (1): Changing array access of a variable to array access of a function result: a[i] -> foo()[i]
• Example for case (2): Calling a function with an existing expression as argument: (x + 1) * 2 -> foo((x + 1) * 2)
• Case (3) is like (2) but auto-closes the paren.

My suggestion is to never insert a closing paren if the symbol following the cursor is a paren: Having to type a closing paren in some situations lexima doesn't support is perfectly fine. What annoys me is deleting an incorrectly inserted paren because it means I have to leave insert mode, press L, press X, and enter insert mode again.

[jonashaag]

This also bugs me when trying to wrap a word in quotes, e.g. |foo --> ' --> '|'foo

[anthrotype]

I found this plugin https://github.com/Raimondi/delimitMate seems to do the right thing in this case

[cohama]

This is intended. It is sometimes good but sometimes annoying, even for me.

My choice is that

• alywas auto-clossing parens is easy to predict for users.
• omitting a closing paren sometimes breaks dot-repeatable

In these case, I often use vim-surroud.