master 7220bbe0511: Correction to patch on 2023-06-21 15:36:56 +0000.

[Alan Mackenzie]

branch: master
commit 7220bbe0511e213cf142059c21bfdd63fc494f28
Author: Alan Mackenzie <acm@muc.de>
Commit: Alan Mackenzie <acm@muc.de>

    Correction to patch on 2023-06-21 15:36:56 +0000.
    
    This corrects an error where commenting out a template closer
    left a subsequent closer without a syntax-table text property.
    
    * lisp/progmodes/cc-engine.el (c-unmark-<>-around-region):
    Don't scan from the inside of 2-character comment delimiters.
    Replace invalid skip-syntax-forward call with a null string
    argument by an invocation of
    c-search-forward-non-nil-char-property.
---
 lisp/progmodes/cc-engine.el | 17 ++++++++---------
 1 file changed, 8 insertions(+), 9 deletions(-)

diff --git a/lisp/progmodes/cc-engine.el b/lisp/progmodes/cc-engine.el
index 0eadeafc836..c4ae8aadd65 100644
--- a/lisp/progmodes/cc-engine.el
+++ b/lisp/progmodes/cc-engine.el
@@ -7158,8 +7158,8 @@ comment at the start of cc-engine.el for more info."
           (beg-literal-beg (car (cddr lit-search-beg-s)))
           (lit-search-end-s (c-semi-pp-to-literal lit-search-end))
           (end-literal-beg (car (cddr lit-search-end-s)))
-          (beg-literal-end (c-end-of-literal lit-search-beg-s beg))
-          (end-literal-end (c-end-of-literal lit-search-end-s end))
+          (beg-literal-end (c-end-of-literal lit-search-beg-s lit-search-beg))
+          (end-literal-end (c-end-of-literal lit-search-end-s lit-search-end))
           new-beg new-end search-region)
 
       ;; Determine any new end of literal resulting from the 
insertion/deletion.
@@ -7212,13 +7212,12 @@ comment at the start of cc-engine.el for more info."
                  ;; Save current settings of the 'syntax-table property in
                  ;; (BEG END), then splat these with the punctuation value.
                  (goto-char beg)
-                 (while (progn (skip-syntax-forward "" end)
-                               (< (point) end))
-                   (setq syn-tab-value
-                         (c-get-char-property (point) 'syntax-table))
-                   (when (not (c-get-char-property (point) 'category))
-                     (push (cons (point) syn-tab-value) syn-tab-settings))
-                   (forward-char))
+                 (while (setq syn-tab-value
+                              (c-search-forward-non-nil-char-property
+                               'syntax-table end))
+                   (when (not (c-get-char-property (1- (point)) 'category))
+                     (push (cons (1- (point)) syn-tab-value)
+                           syn-tab-settings)))
 
                  (c-put-char-properties beg end 'syntax-table '(1))
                  ;; If an open string's opener has just been neutralized,