emacs/lisp/+casing.el

83 lines
3.2 KiB
EmacsLisp

;;; +casing.el --- Word-case-twiddling things -*- lexical-binding: t; -*-
;;; Code:
(require 'thingatpt)
;;;###autoload
(defun +upcase-dwim (arg)
"Upcase words in the region, or upcase word at point.
If the region is active, this function calls `upcase-region'.
Otherwise, it calls `upcase-word' on the word at point (using
`thingatpt'), and the following ARG - 1 words."
(interactive "*p")
(if (use-region-p)
(upcase-region (region-beginning) (region-end) (region-noncontiguous-p))
(let ((following (1- arg))
(word-bound (save-excursion
(skip-chars-forward "^[:word:]")
(bounds-of-thing-at-point 'word))))
(when (and (car word-bound) (cdr word-bound))
(upcase-region (car word-bound) (cdr word-bound))
(goto-char (cdr word-bound))
(upcase-word following)))))
;;;###autoload
(defun +downcase-dwim (arg)
"Downcase words in the region, or downcase word at point.
If the region is active, this function calls `downcase-region'.
Otherwise, it calls `downcase-word' on the word at point (using
`thingatpt'), and the following ARG - 1 words."
(interactive "*p")
(if (use-region-p)
(downcase-region (region-beginning) (region-end) (region-noncontiguous-p))
(let ((following (1- arg))
(word-bound (save-excursion
(skip-chars-forward "^[:word:]")
(bounds-of-thing-at-point 'word))))
(when (and (car word-bound) (cdr word-bound))
(downcase-region (car word-bound) (cdr word-bound))
(goto-char (cdr word-bound))
(downcase-word following)))))
;;;###autoload
(defun +capitalize-dwim (arg)
"Capitalize words in the region, or capitalize word at point.
If the region is active, this function calls `capitalize-region'.
Otherwise, it calls `capitalize-word' on the word at point (using
`thingatpt'), and the following ARG - 1 words."
(interactive "*p")
(if (use-region-p)
(capitalize-region (region-beginning) (region-end) (region-noncontiguous-p))
(let ((following (1- arg))
(word-bound (save-excursion
(skip-chars-forward "^[:word:]")
(bounds-of-thing-at-point 'word))))
(when (and (car word-bound) (cdr word-bound))
(capitalize-region (car word-bound) (cdr word-bound))
(goto-char (cdr word-bound))
(capitalize-word following)))))
;; Later on, I'll add repeat maps and stuff in here...
(defvar +casing-map (let ((map (make-sparse-keymap)))
(define-key map "u" #'+upcase-dwim)
(define-key map (kbd "M-u") #'+upcase-dwim)
(define-key map "l" #'+downcase-dwim)
(define-key map (kbd "M-l") #'+downcase-dwim)
(define-key map "c" #'+capitalize-dwim)
(define-key map (kbd "M-c") #'+capitalize-dwim)
map)
"Keymap for case-related twiddling.")
(define-minor-mode +casing-mode
"Enable easy case-twiddling commands."
:lighter " cC"
:global t
:keymap (let ((map (make-sparse-keymap)))
(define-key map (kbd "M-c") +casing-map)
map))
(provide '+casing)
;;; +casing.el ends here