From: Noam Postavsky <npostavs@gmail.com>
Date: Sun, 14 Jul 2019 01:30:43 +0000 (-0400)
Subject: ; Add comment about sh-assignment-regexp value
X-Git-Tag: emacs-27.0.90~1931
X-Git-Url: http://git.eshelyaron.com/gitweb/?a=commitdiff_plain;h=bcc3d36d8a4b2931ffb7a45436c4b014b1420ff3;p=emacs.git

; Add comment about sh-assignment-regexp value

* lisp/progmodes/sh-script.el (sh-assignment-regexp): Explain what the
the "\\[.+\\]" is for, to make clear it is not a typo for "[.+]".
---

diff --git a/lisp/progmodes/sh-script.el b/lisp/progmodes/sh-script.el
index ae90531a7fe..b92449d7647 100644
--- a/lisp/progmodes/sh-script.el
+++ b/lisp/progmodes/sh-script.el
@@ -578,6 +578,7 @@ This is buffer-local in every such buffer.")
   :group 'sh-script)
 
 (defcustom sh-assignment-regexp
+  ;; The "\\[.+\\]" matches the "[index]" in "arrayvar[index]=value".
   `((csh . "\\<\\([[:alnum:]_]+\\)\\(\\[.+\\]\\)?[ \t]*[-+*/%^]?=")
     ;; actually spaces are only supported in let/(( ... ))
     (ksh88 . ,(concat "\\<\\([[:alnum:]_]+\\)\\(\\[.+\\]\\)?"