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Álvaro Ramírez
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Álvaro Ramírez

14 March 2015 Prefill Emacs swiper with current region

The new swiper Emacs package is proving to be a great alternative to helm-swoop. Here's how to prefill with current region: 

(defun ar/prefilled-swiper ()
  "Pre-fill swiper input with region."
  (interactive)
  (if (region-active-p)
      (let ((region-text (buffer-substring (region-beginning)
                                           (region-end))))
        (swiper region-text))
    (swiper)))

(global-set-key (kbd "C-s")
                #'ar/prefilled-swiper)