GNU bug report logs - #21568
[PATCH] Add prettify-symbols-alist for js-mode

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Message #11 received at 21568 <at> debbugs.gnu.org (full text, mbox):

From: Simen Heggestøyl <simenheg <at> gmail.com>
To: Eli Zaretskii <eliz <at> gnu.org>
Cc: 21568 <at> debbugs.gnu.org
Subject: Re: bug#21568: [PATCH] Add prettify-symbols-alist for js-mode
Date: Sat, 26 Sep 2015 17:59:58 +0200

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On Sat, Sep 26, 2015 at 3:32 PM, Eli Zaretskii <eliz <at> gnu.org> wrote:
> Thanks, but please add a coding cookie to the file, so that UTF-8
> encoded characters in it will always decoded correctly.

Alright. Better?


From a51d8ceaa7e6114cf775a4f01e16a7cf1403e075 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Simen=20Heggest=C3=B8yl?= <simenheg <at> gmail.com>
Date: Wed, 23 Sep 2015 21:49:24 +0200
Subject: [PATCH] Add prettify-symbols-alist for js-mode

* lisp/progmodes/js.el (js--prettify-symbols-alist): New defconst.
(js-mode): Use it.
---
lisp/progmodes/js.el | 11 +++++++++++
1 file changed, 11 insertions(+)

diff --git a/lisp/progmodes/js.el b/lisp/progmodes/js.el
index 6a800f8..ab994f3 100644
--- a/lisp/progmodes/js.el
+++ b/lisp/progmodes/js.el
@@ -1724,6 +1724,12 @@ This performs fontification according to 
`js--class-styles'."
           (js-syntax-propertize-regexp end))))))
   (point) end))

+(defconst js--prettify-symbols-alist
+  '(("=>" . ?⇒)
+    (">=" . ?≥)
+    ("<=" . ?≤))
+  "Alist of symbol prettifications for JavaScript.")
+
;;; Indentation

(defconst js--possibly-braceless-keyword-re
@@ -3495,6 +3501,7 @@ If one hasn't been set, or if it's stale, prompt 
for a new one."
  (setq-local open-paren-in-column-0-is-defun-start nil)
  (setq-local font-lock-defaults (list js--font-lock-keywords))
  (setq-local syntax-propertize-function #'js-syntax-propertize)
+  (setq-local prettify-symbols-alist js--prettify-symbols-alist)

  (setq-local parse-sexp-ignore-comments t)
  (setq-local parse-sexp-lookup-properties t)
@@ -3564,4 +3571,8 @@ If one hasn't been set, or if it's stale, prompt 
for a new one."

(provide 'js)

+;; Local Variables:
+;; coding: utf-8
+;; End:
+
;; js.el ends here
-- 
2.5.3

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