Create repo for yank-indent

repos/x-lib/yank-indent.el

@@ -0,0 +1,47 @@
+;;; yank-indent.el -*- lexical-binding: t -*-
+
+;; Automatically indent yanked text in programming modes.
+
+;;
+;;; Variables:
+
+(defvar +x-yank-indent--additional-modes
+  '(LaTeX-mode TeX-mode)
+  "Additional modes in which to indent yanked(-popped) regions.
+Only modes that don't derive from `prog-mode' should be listed.")
+
+(defvar +x-yank-indent--blacklisted-modes
+  '(python-mode slim-mode haml-mode yaml-mode)
+  "Modes for which auto-indenting is suppressed.")
+
+(defvar +x-yank-indent--threshold 10000
+  "Threshold (# chars) for auto yank indentation.")
+
+;;
+;;; Code:
+
+;; -----------------------------------------------------------------------------
+;; To configure, add `+x-yank-indent-a' as `:after' advice to all the yank-like
+;; functions that you would like to auto-indent. For example:
+;;
+;; (advice-add 'yank :after #'+x-yank-indent-a)
+;; (advice-add 'yank-pop :after #'+x-yank-indent-a)
+;; (advice-add 'consult-yank-pop :after #'+x-yank-indent-a)
+;; -----------------------------------------------------------------------------
+
+;;;###autoload
+(defun +x-yank-indent-a (&optional _)
+  "Indent yanked text.
+Except when used with prefix arg or in one of the excluded modes."
+  (when (and (not current-prefix-arg)
+             (not (member major-mode +x-yank-indent--blacklisted-modes))
+             (or (derived-mode-p 'prog-mode)
+                 (member major-mode +x-yank-indent--additional-modes)))
+    (let ((transient-mark-mode nil)
+          (beg (region-beginning))
+          (end (region-end)))
+      (unless (> (- end beg) +x-yank-indent--threshold)
+        (indent-region beg end nil)))))
+
+(provide 'yank-indent)
+;;; yank-indent.el ends here