Comment-dwim-2
comment-dwim-2 is a replacement for the Emacs' built-in command comment-dwim which includes more comment features, including:
- commenting/uncommenting the current line (or region, if active)
- inserting an inline comment
- killing the inline comment
- reindenting the inline comment
As its name suggests, comment-dwim-2 picks one behavior depending on the context but contrary to comment-dwim can also be repeated several times to switch between the different behaviors.
Demo
comment-dwim-2 repeated 3 times:
How to use
comment-dwim-2 is not bound to any key, so you need to set up you own keybinding first. For instance:
(global-set-key (kbd "M-;") 'comment-dwim-2)
Installation
This package can be installed from MELPA.
Detailed use cases
Commenting/uncommenting the region
Commenting current line
Uncommenting current line
Insert comment (repeated twice)
Kill comment (repeated twice)
Reindent comment (called with a prefix argument)
Customization
An alternative behavior closer to what comment-dwim does is available. To use it, add this to your init file:
(setq comment-dwim-2--inline-comment-behavior 'reindent-comment)
It basically swaps the killing and reindenting behavior, which means that repeating comment-dwim-2 will by default reindent the comment instead of killing it, and that calling comment-dwim-2 with a prefix argument will kill the comment instead of reindenting it.