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;;; td-functions --- custom elisp functions -*- lexical-binding: t; -*-
;;; Code:
;;; Functions
(defun td/increment-number-at-point (&optional increment)
"Increment number at point like vim's `C-a'."
(interactive "p")
(td/change-number-at-point '+ (or increment 2)))
(defun td/decrement-number-at-point (&optional decrement)
"Decrement number at point like vim's `C-x'."
(interactive "p")
(td/change-number-at-point '- (or decrement 2)))
(defun td/change-number-at-point (change operation)
"The generic logic for incrementing and decrementing numbers at point."
(search-forward-regexp (rx digit))
(let ((number (number-at-point))
(point (point)))
(when number
(forward-word)
(search-backward (number-to-string number))
(replace-match (number-to-string (funcall change number operation)))
(goto-char (- point 1)))))
;;; Packages
(use-package custom-functions
:ensure nil
:bind (("C-x n a" . td/increment-number-at-point)
("C-x n x" . td/decrement-number-at-point)))
(provide 'td-functions)
;;; td-functions.el ends here
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