From: Alan Mackenzie <acm@muc.de>
Date: Thu, 16 Apr 2020 17:01:14 +0000 (+0000)
Subject: (forward-comment -n): escaped newline is sometimes NOT end of comment
X-Git-Tag: emacs-28.0.90~7567
X-Git-Url: http://git.eshelyaron.com/gitweb/?a=commitdiff_plain;h=22ba04742072098be60ec223ed2e97fa9a09b045;p=emacs.git

(forward-comment -n): escaped newline is sometimes NOT end of comment

* src/syntax.c (Fforward_comment) When comment-end-can-be-escaped is non-nil,
don't attempt back_comment when point is just after an escaped newline, etc.
---

diff --git a/src/syntax.c b/src/syntax.c
index e24b98da32a..ff125b137cf 100644
--- a/src/syntax.c
+++ b/src/syntax.c
@@ -2572,8 +2572,9 @@ between them, return t; otherwise return nil.  */)
 	    }
 	  else if (code == Sendcomment)
 	    {
-	      found = back_comment (from, from_byte, stop, comnested, comstyle,
-				    &out_charpos, &out_bytepos);
+              found = (!quoted || !Vcomment_end_can_be_escaped)
+                && back_comment (from, from_byte, stop, comnested, comstyle,
+                                 &out_charpos, &out_bytepos);
 	      if (!found)
 		{
 		  if (c == '\n')