Delete whitespace between words, parenthesis and other delimiters in a smart (dumb) way.
Suppose you have this text in the buffer:
With smart-hungry-delete/backward-char, it will delete all but one (white-)space between word and paren:
If you delete here:
it deletes all whitespace, because it’s on the inside of a paren:
Inside of right paren:
This is configured for C-like languages (e.g. Python), where : usually has no space to the left:
It has space to the right though:
This also works for (nested) parentheses:
Between words it will leave a space:
Here’s a small demonstration video:
It’s in MELPA, so if you have that in your package lists, just
M-x package-install smart-hungry-delete, and bind smart-hungry-delete-backward-char and smart-hungry-delete-forward-char:
(require 'smart-hungry-delete) (smart-hungry-delete-add-default-hooks) (global-set-key (kbd "<backspace>") 'smart-hungry-delete-backward-char) (global-set-key (kbd "<delete>") 'smart-hungry-delete-backward-char) (global-set-key (kbd "C-d") 'smart-hungry-delete-forward-char)If you use
use-package:
(use-package smart-hungry-delete :ensure t :bind (([remap backward-delete-char-untabify] . smart-hungry-delete-backward-char) ([remap delete-backward-char] . smart-hungry-delete-backward-char) ([remap delete-char] . smart-hungry-delete-forward-char)) :init (smart-hungry-delete-add-default-hooks))
Only for some modes:
(use-package smart-hungry-delete
:ensure t
:bind (:map python-mode-map
([remap backward-delete-char-untabify] . smart-hungry-delete-backward-char)
([remap delete-backward-char] . smart-hungry-delete-backward-char)
([remap delete-char] . smart-hungry-delete-forward-char))
:init (smart-hungry-delete-add-default-hooks))Here’s the basic el-get recipe:
(:name smart-hungry-delete :type github :pkgname "hrehfeld/emacs-smart-hungry-delete")
smart-hungry-delete deletes hungrily if three regexps match:
<left><kill>(point)<right>
or with smart-hungry-delete-forward-char:
<left>(point)<kill><right>
You can configure these on a per buffer basis:
smart-hungry-delete-char-kill-regexp is a buffer-local variable holding a regex that defines what will be hungrily deleted (<kill>).
smart-hungry-delete-char-trigger-killall-regexps is a list of pairs:
'(("\\[" . ".") ;; delete when <left> is "[" and <right> is any of "."
("." . "\\]") ;; delete when <left> is any of "." and <right> is "]"
...)
smart-hungry-delete-add-regexps-left-right makes it easy to add left-right combinations of chars like parentheses:
(smart-hungry-delete-add-regexps-left-right "\\{" "\\}") ;;as above, but with "{" and "}"
smart-hungry-delete-add-default-hooks will add some good defaults for (some) programming modes. Check out the smart-hungry-delete-default-*-hook functions.
If you have good suggestions for more defaults, make sure to suggest the recipes!
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