My Emacs configuration.
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;;; db-hydras.el --- Personal hydras ' -*- lexical-binding: t -*-
;;; Commentary:
;;; Code:
(autoload 'rectangle-exchange-point-and-mark "rect")
(require 'hydra)
(require 'db-customize)
(defhydra hydra-toggle (:color blue)
"toggle"
("c" column-number-mode "column")
("d" toggle-debug-on-error "debug-on-error")
("e" toggle-debug-on-error "debug-on-error")
("f" auto-fill-mode "auto-fill")
("l" toggle-truncate-lines "truncate lines")
("q" toggle-debug-on-quit "debug-on-quit")
("r" read-only-mode "read-only"))
;; zooming with single keystrokes (from oremacs)
(defhydra hydra-zoom (:color red
:body-pre (require 'face-remap))
;; the following newline is important, as otherwise the format string is not
;; interpreted correctly; cf. https://oremacs.com/2015/02/23/hydra-0.11.0/
"
Zoom (%`text-scale-mode-amount): "
("g" text-scale-increase "increase")
("l" text-scale-decrease "decrease"))
(defhydra hydra-rectangle (:body-pre (rectangle-mark-mode 1)
:color pink
:post (deactivate-mark))
"
^_k_^ _d_elete _s_tring
_h_ _l_ _o_k _y_ank
^_j_^ _n_ew-copy _r_eset
^^^^ _e_xchange _u_ndo
^^^^ ^ ^ _p_aste
"
("h" backward-char nil)
("l" forward-char nil)
("k" previous-line nil)
("j" next-line nil)
("n" copy-rectangle-as-kill nil)
("d" delete-rectangle nil)
("r" (if (region-active-p)
(deactivate-mark)
(rectangle-mark-mode 1))
nil)
("y" yank-rectangle nil)
("u" undo nil)
("s" string-rectangle nil)
("p" kill-rectangle nil)
("e" rectangle-exchange-point-and-mark nil)
("o" nil nil))
;; The hydra for our frequently used features should be defined here, but should
;; also be redefined every time `db/frequently-used-features' is redefined via
;; customize. To this end, we provide a special function here that defines this
;; hydra, that can also be called in the setter of
;; `db/frequently-used-features'.
(defun db/define-feature-shortcuts-hydra ()
"Globally define `hydra-feature-shortcuts' for feature shortcuts.
If instead of a shortcut character nil is provided, no entry in
the hydra will be generated. See documentation of
`db/frequently-used-features' for details."
(eval
`(defhydra hydra-feature-shortcuts (:color blue)
""
,@(mapcar (lambda (entry)
(pcase-let ((`(,description ,shortcut ,function) entry))
(list (string shortcut) function description)))
(cl-remove-if #'(lambda (entry)
(null (cl-second entry)))
db/frequently-used-features)))))
(db/define-feature-shortcuts-hydra)
(provide 'db-hydras)
;;; db-hydras.el ends here