Hello everyone,
I stumbled a couple of times across a behaviour by
‘electric-quote-mode’ where it replaces two consecutive single
electric quotes with a single double quote. To see what I mean open
‘emacs -Q’, enable ‘electric-quote-mode’ and ‘text-mode’, then hit `
or ' twice. I find it more annoying than helpful so I changed
‘electric-quote-post-self-insert-function’ to make it check an option
that can disable this behaviour. It involves the two lines marked with
‘<--’ arrows in the code below.
Do you think it can be included in Emacs?
Best of wishes,
Andrea
Code:
(defcustom electric-quote-replace-consecutive t
"Non-nil means to replace two consecutive electric single quotes
with the corresponding (opening or closing) double quote."
:type 'boolean :safe #'booleanp :group 'electricity)
(defun electric-quote-post-self-insert-function ()
"Function that `electric-quote-mode' adds to `post-self-insert-hook'.
This requotes when a quoting key is typed."
(when (and electric-quote-mode
(or (eq last-command-event ?\')
(and (not electric-quote-context-sensitive)
(eq last-command-event ?\`))
(and electric-quote-replace-double
(eq last-command-event ?\")))
(not (run-hook-with-args-until-success
'electric-quote-inhibit-functions))
(if (derived-mode-p 'text-mode)
electric-quote-paragraph
(and comment-start comment-use-syntax
(or electric-quote-comment electric-quote-string)
(let* ((syntax (syntax-ppss))
(beg (nth 8 syntax)))
(and beg
(or (and electric-quote-comment (nth 4 syntax))
(and electric-quote-string (nth 3 syntax)))
;; Do not requote a quote that starts or ends
;; a comment or string.
(eq beg (nth 8 (save-excursion
(syntax-ppss (1- (point)))))))))))
(pcase electric-quote-chars
(`(,q< ,q> ,q<< ,q>>)
(save-excursion
(let ((backtick ?\`))
(if (or (eq last-command-event ?\`)
(and (or electric-quote-context-sensitive ;; <-- Changed here
(and electric-quote-replace-double
(eq last-command-event ?\")))
(save-excursion
(backward-char)
(skip-syntax-backward "\\")
(or (bobp) (bolp)
(memq (char-before) (list q< q<<))
(memq (char-syntax (char-before))
'(?\s ?\())))
(setq backtick ?\')))
(cond ((and electric-quote-replace-consecutive ;; <----- and here
(search-backward (string q< backtick) (- (point) 2) t))
(replace-match (string q<<))
(when (and electric-pair-mode
(eq (cdr-safe
(assq q< electric-pair-text-pairs))
(char-after)))
(delete-char 1))
(setq last-command-event q<<))
((search-backward (string backtick) (1- (point)) t)
(replace-match (string q<))
(setq last-command-event q<))
((search-backward "\"" (1- (point)) t)
(replace-match (string q<<))
(setq last-command-event q<<)))
(cond ((and electric-quote-replace-consecutive
(search-backward (string q> ?') (- (point) 2) t))
(replace-match (string q>>))
(setq last-command-event q>>))
((search-backward "'" (1- (point)) t)
(replace-match (string q>))
(setq last-command-event q>))
((search-backward "\"" (1- (point)) t)
(replace-match (string q>>))
(setq last-command-event q>>))))))))))