From: William Denton <wtd@pobox.com>
Date: Sat, 29 May 2021 06:08:35 +0000 (+0200)
Subject: Add pretty symbols to ruby-mode
X-Git-Tag: emacs-28.0.90~2284
X-Git-Url: http://git.eshelyaron.com/gitweb/?a=commitdiff_plain;h=90cd4d6caeac337054fa0c4548281cc54eed37d3;p=emacs.git

Add pretty symbols to ruby-mode

* lisp/progmodes/ruby-mode.el (ruby--prettify-symbols-alist): Add
pretty symbols (bug#48681).
(ruby-mode): Use them.
---

diff --git a/lisp/progmodes/ruby-mode.el b/lisp/progmodes/ruby-mode.el
index 0c54a1d27a6..cb8bbcd9b9a 100644
--- a/lisp/progmodes/ruby-mode.el
+++ b/lisp/progmodes/ruby-mode.el
@@ -2421,6 +2421,14 @@ If there is no Rubocop config file, Rubocop will be passed a flag
    report-fn
    args))
 
+(defconst ruby--prettify-symbols-alist
+  '(("<=" . ?≤)
+    (">=" . ?≥)
+    ("->"  . ?→)
+    ("=>"  . ?⇒)
+    ("::" . ?∷))
+  "Value for `prettify-symbols-alist' in `ruby-mode'.")
+
 ;;;###autoload
 (define-derived-mode ruby-mode prog-mode "Ruby"
   "Major mode for editing Ruby code."
@@ -2437,6 +2445,7 @@ If there is no Rubocop config file, Rubocop will be passed a flag
 
   (setq-local font-lock-defaults '((ruby-font-lock-keywords) nil nil
                                    ((?_ . "w"))))
+  (setq-local prettify-symbols-alist ruby--prettify-symbols-alist)
 
   (setq-local syntax-propertize-function #'ruby-syntax-propertize))