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* bug#43558: [PATCH]: Fix (forward-comment 1) when end delimiter is escaped.
@ 2020-09-22  9:35 Alan Mackenzie
  2020-09-22 14:09 ` Stefan Monnier
                   ` (2 more replies)
  0 siblings, 3 replies; 36+ messages in thread
From: Alan Mackenzie @ 2020-09-22  9:35 UTC (permalink / raw)
  To: 43558, monnier

Hello, Emacs and Stefan.

In the following C comment:

1   /*
2     \*/
3   /**/

, with point at BOL 1, do M-: (forward-comment 1).  This leaves point
wrongly at EOL 2.  It should end up at EOL 3, since the apparent comment
ender on L2 is actually escaped.

The following patch fixes this.  Are there any objections to me
installing it?


diff --git a/src/syntax.c b/src/syntax.c
index e6af8a377b..066972e6d8 100644
--- a/src/syntax.c
+++ b/src/syntax.c
@@ -2354,6 +2354,13 @@ forw_comment (ptrdiff_t from, ptrdiff_t from_byte, ptrdiff_t stop,
 	/* We have encountered a nested comment of the same style
 	   as the comment sequence which began this comment section.  */
 	nesting++;
+      if (comment_end_can_be_escaped
+          && (code == Sescape || code == Scharquote))
+        {
+          inc_both (&from, &from_byte);
+          UPDATE_SYNTAX_TABLE_FORWARD (from);
+          if (from == stop) continue; /* Failure */
+        }
       inc_both (&from, &from_byte);
       UPDATE_SYNTAX_TABLE_FORWARD (from);
 

-- 
Alan Mackenzie (Nuremberg, Germany).





^ permalink raw reply related	[flat|nested] 36+ messages in thread

end of thread, other threads:[~2022-04-28 18:52 UTC | newest]

Thread overview: 36+ messages (download: mbox.gz follow: Atom feed
-- links below jump to the message on this page --
2020-09-22  9:35 bug#43558: [PATCH]: Fix (forward-comment 1) when end delimiter is escaped Alan Mackenzie
2020-09-22 14:09 ` Stefan Monnier
2020-09-22 19:41   ` Alan Mackenzie
     [not found] ` <handler.43558.B.160076736116422.ack@debbugs.gnu.org>
2020-09-23  8:57   ` Alan Mackenzie
2020-09-23  9:01 ` Mattias Engdegård
2020-09-23 14:48   ` Alan Mackenzie
2020-09-23 18:44     ` Stefan Monnier
2020-09-23 19:44       ` Alan Mackenzie
2020-09-23 20:02         ` Stefan Monnier
2020-09-24 10:20       ` Alan Mackenzie
2020-09-24 16:56         ` Stefan Monnier
2020-09-24 18:50           ` Alan Mackenzie
2020-09-24 22:43             ` Stefan Monnier
2020-11-19 21:18           ` Alan Mackenzie
2020-11-19 22:47             ` Stefan Monnier
2020-11-22 13:12               ` Alan Mackenzie
2020-11-22 15:20                 ` Stefan Monnier
2020-11-22 17:08                   ` Alan Mackenzie
2020-11-22 17:46                     ` Dmitry Gutov
2020-11-22 18:19                       ` Alan Mackenzie
2020-11-22 20:39                         ` Dmitry Gutov
2020-11-22 21:13                           ` Alan Mackenzie
2020-11-22 21:34                             ` Dmitry Gutov
2020-11-22 22:01                               ` Alan Mackenzie
2020-11-22 23:00                                 ` Stefan Monnier
2021-05-13 10:38                                   ` Lars Ingebrigtsen
2021-05-13 14:51                                     ` Alan Mackenzie
2021-05-16 13:53                                       ` Lars Ingebrigtsen
2022-04-28 11:17                                       ` Lars Ingebrigtsen
2022-04-28 18:52                                         ` Alan Mackenzie
2020-11-22 23:10                     ` Stefan Monnier
2020-11-22 15:35                 ` Eli Zaretskii
2020-11-22 17:03                   ` Alan Mackenzie
2020-09-24 18:52     ` Michael Welsh Duggan
2020-09-24 19:57       ` Alan Mackenzie
2020-09-24 20:27         ` Michael Welsh Duggan

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