207 lines
7.2 KiB
EmacsLisp
207 lines
7.2 KiB
EmacsLisp
;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
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;; FUNCTIONS
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;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
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(defun unfill-paragraph ()
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(interactive)
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(let ((fill-column (point-max)))
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(fill-paragraph nil)))
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(defun unfill-region ()
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(interactive)
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(let ((fill-column (point-max)))
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(fill-region (region-beginning) (region-end) nil)))
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(defun sort-lines-unique ()
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"Remove duplicate lines using shell command `sort -u'"
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(interactive)
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(shell-command-on-region (point) (mark) "sort -u" (buffer-name) t))
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(defun dtwi () "Delete trailing whitespaces interactively."
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(interactive)
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(query-replace-regexp " +
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" "
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"))
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(defun toggle-window-split ()
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"Vertical split shows more of each line, horizontal split shows
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more lines. This code toggles between them. It only works for
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frames with exactly two windows."
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(interactive)
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(if (= (count-windows) 2)
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(let* ((this-win-buffer (window-buffer))
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(next-win-buffer (window-buffer (next-window)))
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(this-win-edges (window-edges (selected-window)))
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(next-win-edges (window-edges (next-window)))
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(this-win-2nd (not (and (<= (car this-win-edges)
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(car next-win-edges))
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(<= (cadr this-win-edges)
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(cadr next-win-edges)))))
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(splitter
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(if (= (car this-win-edges)
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(car (window-edges (next-window))))
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'split-window-horizontally
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'split-window-vertically)))
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(delete-other-windows)
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(let ((first-win (selected-window)))
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(funcall splitter)
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(if this-win-2nd (other-window 1))
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(set-window-buffer (selected-window) this-win-buffer)
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(set-window-buffer (next-window) next-win-buffer)
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(select-window first-win)
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(if this-win-2nd (other-window 1))))))
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(define-key my-keys-minor-mode-map [(control c) (|)] 'toggle-window-split)
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(defun duplicate (arg)
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"Duplicates the current line or region ARG times.
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If there's no region, the current line will be duplicated. However, if
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there's a region, all lines that region covers will be duplicated."
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(interactive "p")
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(let (beg
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end
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(origin (point))
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(auto-fill-p (symbol-value 'auto-fill-function)))
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(if (and mark-active (> (point) (mark)))
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(exchange-point-and-mark))
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(setq beg (line-beginning-position))
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(if mark-active
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(exchange-point-and-mark))
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(setq end (line-end-position))
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(let ((region (buffer-substring-no-properties beg end)))
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(auto-fill-mode -1)
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(dotimes (i arg)
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(goto-char end)
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(newline)
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(insert region)
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(setq end (point)))
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(if auto-fill-p (auto-fill-mode))
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(goto-char (+ origin (* (length region) arg) arg)))))
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(define-key my-keys-minor-mode-map (kbd "C-c C-d") 'duplicate)
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(defun comment-or-uncomment-current-line-or-region ()
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"Comments or uncomments current current line or whole lines in region."
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(interactive)
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(save-excursion
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(let (min max)
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(if (region-active-p)
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(setq min (region-beginning) max (region-end))
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(setq min (point) max (point)))
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(comment-or-uncomment-region
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(progn (goto-char min) (line-beginning-position))
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(progn (goto-char max) (line-end-position))))))
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(define-key my-keys-minor-mode-map "\M-;" 'comment-or-uncomment-current-line-or-region)
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(defun xor (b1 b2)
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"Exclusive or of its two arguments."
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(or (and b1 b2)
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(and (not b1) (not b2))))
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(defun move-border-left-or-right (arg dir)
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"General function covering move-border-left and
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move-border-right. If DIR is t, then move left, otherwise move
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right."
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(interactive)
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(if (null arg) (setq arg 5))
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(let ((left-edge (nth 0 (window-edges))))
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(if (xor (= left-edge 0) dir)
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(shrink-window arg t)
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(enlarge-window arg t))))
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(defun move-border-left (arg)
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"If this is a window with its right edge being the edge of the
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screen, enlarge the window horizontally. If this is a window with
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its left edge being the edge of the screen, shrink the window
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horizontally. Otherwise, default to enlarging horizontally.
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Enlarge/Shrink by ARG columns, or 5 if arg is nil."
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(interactive "P")
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(if (= (count-windows) 2)
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(move-border-left-or-right arg t)))
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(defun move-border-right (arg)
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"If this is a window with its right edge being the edge of the
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screen, shrink the window horizontally. If this is a window with
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its left edge being the edge of the screen, enlarge the window
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horizontally. Otherwise, default to shrinking horizontally.
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Enlarge/Shrink by ARG columns, or 5 if arg is nil."
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(interactive "P")
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(if (= (count-windows) 2)
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(move-border-left-or-right arg nil)))
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(define-key my-keys-minor-mode-map (kbd "M-(") 'move-border-left)
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(define-key my-keys-minor-mode-map (kbd "M-)") 'move-border-right)
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(defun eval-and-replace ()
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"Replace the last sexp with its value."
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(interactive)
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(backward-kill-sexp)
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(condition-case nil
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(prin1 (eval (read (current-kill 0)))
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(current-buffer))
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(error (message "Invalid expression")
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(insert (current-kill 0)))))
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(defun swap-windows ()
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"If you have 2 windows, it swaps them."
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(interactive)
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(cond ((/= (count-windows) 2)
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(message "You need exactly 2 windows to do this."))
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(t
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(let* ((w1 (first (window-list)))
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(w2 (second (window-list)))
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(b1 (window-buffer w1))
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(b2 (window-buffer w2))
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(s1 (window-start w1))
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(s2 (window-start w2)))
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(set-window-buffer w1 b2)
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(set-window-buffer w2 b1)
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(set-window-start w1 s2)
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(set-window-start w2 s1))))
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(other-window 1))
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(define-key my-keys-minor-mode-map (kbd "C-c s") 'swap-windows)
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(defun rename-buffer-and-file ()
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"Renames current buffer and file it is visiting."
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(interactive)
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(let ((name (buffer-name))
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(filename (buffer-file-name)))
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(if (not (and filename (file-exists-p filename)))
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(error "Buffer '%s' is not visiting a file!" name)
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(let ((new-name (read-file-name "New name: " filename)))
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(cond ((get-buffer new-name)
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(error "A buffer named '%s' already exists!" new-name))
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(t
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(rename-file filename new-name 1)
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(rename-buffer new-name)
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(set-visited-file-name new-name)
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(set-buffer-modified-p nil)
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(message "File '%s' successfully renamed to '%s'" name (file-name-nondirectory new-name))))))))
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(define-key my-keys-minor-mode-map (kbd "C-x C-w") 'rename-buffer-and-file)
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(defun kill-all-buffers ()
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"Kill all buffers, leaving *scratch* only."
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(interactive)
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(mapc
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(lambda (x)
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(kill-buffer x))
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(buffer-list))
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(delete-other-windows))
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(defun sanitize ()
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"Untabifies, indents and deletes trailing whitespace from buffer or region."
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(interactive)
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(save-excursion
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(unless (region-active-p)
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(mark-whole-buffer))
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(untabify (region-beginning) (region-end))
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(indent-region (region-beginning) (region-end))
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(save-restriction
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(narrow-to-region (region-beginning) (region-end))
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(delete-trailing-whitespace))))
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