deft-mode – Strip file variables from title line

deft-title-fn-strip-file-vars.el

;; Customise deft to remove file-vars from the title line.
;;
;; I use 'markdown-mode with deft usually, but for some longform files,
;; I prefer using 'org-mode.
;;
;; The easiest way to do this is to use a file variable like so:
;;
;;     -*- mode: org; -*-
;; 
;; in the first line of the file. This makes the file open in 'org-mode
;; instead of 'markdown-mode.
;;
;; Unfortunately, this ugly variable line will be shown in the main
;; deft frame. This function solves that problem.

(defun deft-title-fn-strip-file-vars (str)
  (replace-regexp-in-string "-\\*-.*-\\*-" "" (deft-strip-title str)))
  
(setq deft-parse-title-function 'deft-title-fn-strip-file-vars)