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Add common pairs to defcustom for electric-quote-chars

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* lisp/electric.el (electric--print-list-of-chars): New function to
display chars as chars instead of integers in a custom widget.
(electric-char-pair): New widget for displaying a pair of characters.
(electric-quote-chars-pairs): New widget.  Contains presets for common
combinations of left/right quotation characters
(electric-quote-chars): Update to use 'electric-quote-chars-pairs'.

* etc/NEWS: Announce the change.
This commit is contained in:
Robert Pluim 2024-06-03 14:00:56 +02:00
parent 68cc4cb6b1
commit 62d6ba2ede
2 changed files with 60 additions and 2 deletions
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6
etc/NEWS
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@ -141,6 +141,12 @@ function to the advice to remove.
** Emacs now supports Unicode Standard version 15.1.
** New pre-defined values for 'electric-quote-chars'.
The available customization options for 'electric-quote-chars' have been
updated with common pairs of quotation characters, including "‘", "’",
"“", "”", "«", "»", "‹", "›", "‚", "„", "「", "」", "『", and "』".
The default is unchanged.
** Network Security Manager
+++

56
lisp/electric.el
View file

@ -506,12 +506,64 @@ The variable `electric-layout-rules' says when and how to insert newlines."
:version "25.1"
:type 'boolean :safe 'booleanp :group 'electricity)
;; The default :value-create produces "list of numbers" when given "list
;; of characters", this prints them as characters.
(defun electric--print-list-of-chars (widget)
(let ((print-integers-as-characters t))
(princ (widget-get widget :value) (current-buffer))))
;; This is just so we can make pairs print as characters.
(define-widget 'electric-char-pair 'const
"Electric quote character pair."
:group 'electricity
:format "%t: %v\n"
:inline t
:value-create #'electric--print-list-of-chars
:type '(list character character))
(define-widget 'electric-quote-chars-pairs 'lazy
"Choose pair of electric quote chars."
:group 'electricity
:type '(radio
(electric-char-pair :tag "Single" (?‘ ?’))
(electric-char-pair :tag "Double" (?“ ?”))
(electric-char-pair :tag "Guillemets" (?« ?»))
(electric-char-pair :tag "Single guillemets" (?‹ ?›))
(electric-char-pair :tag "Corners" (?「 ?」))
(electric-char-pair :tag "Double corners" (?『 ?』))
(electric-char-pair :tag "Low/high single left" (?‚ ?‘))
(electric-char-pair :tag "Low/high double left" (?„ ?“))
(electric-char-pair :tag "Low/high single right" (?‚ ?’))
(electric-char-pair :tag "Low/high double right" (?„ ?”))
(electric-char-pair :tag "Single inverted" (?’ ?‘))
(electric-char-pair :tag "Right single only" (?’ ?’))
(electric-char-pair :tag "Right double only" (?” ?”))
(electric-char-pair :tag "Guillemets inverted" (?» ?«))
(electric-char-pair :tag "Guillemets right only" (?» ?»))
(electric-char-pair :tag "Single guillemets inverted" (?› ?‹))
(electric-char-pair :tag "Mathematical double angle" (?⟪ ?⟫))
(electric-char-pair :tag "Mathematical single angle" (?⟨ ?⟩))
(electric-char-pair :tag "Double angle" (?《 ?》))
(electric-char-pair :tag "Single angle" (?〈 ?〉))))
(defcustom electric-quote-chars '(?‘ ?’ ?“ ?”)
"Curved quote characters for `electric-quote-mode'.
This list's members correspond to left single quote, right single
quote, left double quote, and right double quote, respectively."
quote, left double quote, and right double quote, respectively.
Commonly used pairs are predefined, or you can define your own
completely custom style."
:version "26.1"
:type '(list character character character character)
:type '(choice
(const :format "%t: %v\n" :tag "Default"
:value-create electric--print-list-of-chars
(?‘ ?’ ?“ ?”))
(list :tag "Predefined pairs"
(electric-quote-chars-pairs :tag "Single quotes")
(electric-quote-chars-pairs :tag "Double quotes"))
(list :tag "Custom"
(character ?‘) (character ?’)
(character ?“) (character ?”)))
:safe (lambda (x)
(pcase x
(`(,(pred characterp) ,(pred characterp)