.emacs.d/custom.el

;;; Compilation
(setq compile-command "make ")
;; C-m functions as \r, so pressing C-x C-m C-m will call compile and skip the prompt.
(global-set-key (kbd "C-x C-m") 'compile)

;; Nicer movement in compilation-mode.
(add-hook 'compilation-mode-hook
		  (lambda () (local-set-key (kbd "n") 'compilation-next-error)))
(add-hook 'compilation-mode-hook
		  (lambda () (local-set-key (kbd "p") 'compilation-previous-error)))

;; Function for selecting the current line.
(defun fez/mark-line ()
  "Selects the current line with the mark."
  (interactive)
  (move-beginning-of-line nil)
  (set-mark (point))
  (move-end-of-line nil))

;; Toggle between indenting with tabs or spaces.
(defun fez/toggle-indent ()
  (interactive)
  (setq-default indent-tabs-mode (not indent-tabs-mode)))

(defun fez/current-line-empty-p ()
  (save-excursion
    (beginning-of-line)
    (looking-at-p "[[:space:]]*$")))

(defun fez/flash-region (&optional timeout)
  "Temporarily highlight region from START to END. Taken from SLIME source code and modified."
  (interactive)
  (transient-mark-mode)
  (save-excursion
    (mark-defun)
    ;; Don't mark the line above the s-expression.
    (while (fez/current-line-empty-p)
      (forward-char))
    (let* ((start (region-beginning))
           (end (region-end))
           (overlay (make-overlay start end)))
      (deactivate-mark)
      (overlay-put overlay 'face 'secondary-selection)
      (run-with-timer (or timeout 0.2) nil 'delete-overlay overlay)))
  (transient-mark-mode))

(defun fez/insert-keybind ()
  (interactive)
  (insert (concat "(kbd \""
                  (key-description (read-key-sequence-vector "Key sequence: "))
                  "\")")))

(defun fez/time-stamp ()
  (interactive)
  (shell-command "LANG=nb_NO.UTF-8 date +%d-%m-%Y" t))

;; Eshell convinience commands.
(defalias 'open 'find-file-other-window)
(defalias 'clean 'eshell/clear-scrollback)

;;; Keybinds

;; C-x C-z and C-z are normally mapped to suspend-frame, an absolutely useless function.
;; Unbind them before making the keybind useful.
(global-unset-key (kbd "C-x C-z"))
(global-unset-key (kbd "C-z"))
(global-set-key (kbd "C-x C-z") 'fez/mark-line)

;; Better buffer management (smol).
(global-set-key (kbd "C-x C-b") 'bs-show)

;; Insipiration from Nyxt, kill the current buffer.
(global-set-key (kbd "C-x C-k") 'kill-this-buffer)

(global-set-key (kbd "C-c t") 'fez/time-stamp)

;; Binds for switching between light and dark themes.
(global-set-key [f5] (lambda ()
                       (interactive)
                       (disable-theme 'basic)
                       (load-theme 'magik)))
(global-set-key [f6] (lambda ()
                       (interactive)
                       (disable-theme 'magik)
                       (load-theme 'basic)))

(add-hook 'emacs-lisp-mode-hook
          (lambda () (local-set-key (kbd "C-c k") #'fez/insert-keybind)))