> I installed the patch below for now.
Duh, here it is,
Stefan
diff --git a/smalltalk-mode.el b/smalltalk-mode.el
index f662fe1d69..5260b1e510 100644
--- a/smalltalk-mode.el
+++ b/smalltalk-mode.el
@@ -2,8 +2,8 @@
;; Author: Steve Byrne
;; Maintainer: Derek Zhou <de...@3qin.us>
-;; Version: 3.2.92
-;; Copyright 1988-2020 Free Software Foundation, Inc.
+;; Version: 4.0
+;; Copyright 1988-2021 Free Software Foundation, Inc.
;; This file is part of GNU Smalltalk.
@@ -39,6 +39,13 @@
;; Incorporates Frank Caggiano's changes for Emacs 19.
;; Updates and changes for Emacs 20 and 21 by David Forster
+;;; News
+
+;; New in 4.0:
+;; - Completely rewritten indentation code, which now relies on SMIE
+;; - Support for `prettify-symbols-mode'
+;; - Use `electric-indent-mode'
+
;;; Code:
(require 'smie nil t) ;Not indispensable (yet).
@@ -352,10 +359,11 @@ of the line where the search succeeded. Otherwise,
return nil."
("<" id ">") ;Meta info like `comment' and `category'
(exp "!" exp) ;GNU Smalltalk extension
(id ":=" exp) ;Assignment
+ (id "_" exp) ;Assignment
(exp ";" exp) ;Message cascading
(exp "\n" exp) ;Separator for bang method header
(exp "." exp))) ;Separate instructions
- '((assoc "!") (assoc "|") (assoc "." "\n") (noassoc ":=" "^")
+ '((assoc "!") (assoc "|") (assoc "." "\n") (noassoc ":=" "_" "^")
(assoc ";") (assoc "kw-sel" "bin-sel"))))))
(defconst smalltalk--smie-id-re
@@ -453,7 +461,7 @@ of the line where the search succeeded. Otherwise, return
nil."
"Return non-nil if the thing at point is allowed to be an /expr/."
(save-excursion
(pcase (smalltalk--smie-backward-token)
- ((or `"bin-sel" `"kw-sel" ":=" `"." `"^" `"!" "|")
+ ((or `"bin-sel" `"kw-sel" ":=" "_" `"." `"^" `"!" "|")
t)
((or `"|-open" `";" `"lit-symbol" "lit-number") nil)
;;`""' means we bumped into a paren or a string.
@@ -475,7 +483,7 @@ of the line where the search succeeded. Otherwise, return
nil."
(`(:elem . basic) smalltalk-indent-amount)
(`(:after . "|") 0)
(`(:after . ">") 0) ;Indentation after a pragma.
- (`(:after . ":=") smalltalk-indent-amount)
+ (`(:after . ,(or ":=" "_")) smalltalk-indent-amount)
(`(:after . "\n") (if (smie-rule-parent-p "!") ;GST2 method header
separator
smalltalk-indent-amount))
(`(:after . ";")
@@ -534,6 +542,7 @@ of the line where the search succeeded. Otherwise, return
nil."
(defvar smalltalk-prettify-symbols-alist
'(("^" . ?↑)
+ ("_" . ?←)
(":=" . ?←)))
;;;; ---[ Interactive functions ]---------------------------------------
