File: dired.process_marked

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# -*- mode: snippet -*-
# name: process marked files in dired
# contributor : Xah Lee
# --
;; idiom for processing a list of files in dired's marked files

;; suppose myProcessFile is your function that takes a file path
;; and do some processing on the file

(defun dired-myProcessFile ()
  "apply myProcessFile function to marked files in dired."
  (interactive)
  (require 'dired)
  (mapc 'myProcessFile (dired-get-marked-files))
)

;; to use it, type M-x dired-myProcessFile