patch 9.1.1860: clipboard register "+" enabled with cplipboard provider feature

Problem:  clipboard register "+" enabled with cplipboard provider feature
          (BenYip, after v9.1.1857)
Solution: Don't make clipboard provider enable plus register on UNIX
          (Foxe Chen)

fixes: #18580
closes: #18580

Signed-off-by: Foxe Chen <chen.foxe@gmail.com>
Signed-off-by: Christian Brabandt <cb@256bit.org>

runtime/doc/eval.txt

@@ -1,4 +1,4 @@
-*eval.txt*	For Vim version 9.1.  Last change: 2025 Oct 14
+*eval.txt*	For Vim version 9.1.  Last change: 2025 Oct 16
 
 
 		  VIM REFERENCE MANUAL	  by Bram Moolenaar
@@ -5274,8 +5274,9 @@ Usage: >vim
 
 When Vim is compiled with the |+clipboard_provider| feature, which requires
 the |+eval| feature, creating custom clipboards is possible.  These providers
-handle the "+" and "*" registers.  Note that on non-Unix or non-VMS systems,
-only the "*" register will be available for use.
+handle the "+" and "*" registers.  Note that if |+wayland_clipboard| or
+|+xterm_clipboard| features are not compiled in, then the "+" register will
+not be available.
 
 To add a provider, add a new entry to the |v:clipproviders| dictionary, in the
 format of: >
@@ -5353,7 +5354,7 @@ Here is an example script that uses the clipboard provider feature through the
 OSC52 command: >vim
 
 	func Available()
-	  return "+"
+	  return "*"
 	endfunc
 	
 	func Paste(reg, type)
@@ -5368,7 +5369,7 @@ OSC52 command: >vim
 	  augroup END
 	
 	  " Send command
-	  call echoraw("\<Esc>]52;c;?\<Esc>\\")
+	  call echoraw("\<Esc>]52;;?\<Esc>\\")
 	
 	  " Wait until autocmd is triggered
 	  while getchar(-1) != "\<F30>"
@@ -5377,7 +5378,7 @@ OSC52 command: >vim
 	  autocmd! OSC
 	
 	  " Extract the base64 stuff
-	  let l:stuff = matchstr(v:termosc, '52;c;\zs[A-Za-z0-9+/=]\+')
+	  let l:stuff = matchstr(v:termosc, '52;.\+;\zs[A-Za-z0-9+/=]\+')
 	
 	  return ("", blob2str(base64_decode(l:stuff)))
 	endfunc
@@ -5389,10 +5390,10 @@ OSC52 command: >vim
 	let v:clipproviders["myosc"] = {
 	    \   "available": function("Available"),
 	    \   "paste": {
-	    \     '+': function("Paste"),
+	    \     '*': function("Paste")
 	    \   },
 	    \   "copy": {
-	    \     '+': function("Copy"),
+	    \     '*': function("Copy")
 	    \   },
 	    \ }
 	set clipmethod=myosc

src/clipboard.c

@@ -3466,7 +3466,7 @@ clip_wl_owner_exists(Clipboard_T *cbd)
  * depending on the order of values in str.
  */
     static clipmethod_T
-get_clipmethod(char_u *str, bool *regular, bool *primary)
+get_clipmethod(char_u *str, bool *plus UNUSED, bool *star)
 {
     int		len	= (int)STRLEN(str) + 1;
     char_u	*buf	= alloc(len);
@@ -3493,8 +3493,8 @@ get_clipmethod(char_u *str, bool *regular, bool *primary)
 		if (clip_wl.regular.available || clip_wl.primary.available)
 		{
 		    method = CLIPMETHOD_WAYLAND;
-		    *regular = clip_wl.regular.available;
-		    *primary = clip_wl.primary.available;
+		    *plus = clip_wl.regular.available;
+		    *star = clip_wl.primary.available;
 		}
 #endif
 	    }
@@ -3516,7 +3516,7 @@ get_clipmethod(char_u *str, bool *regular, bool *primary)
 		    // won't be executed since xterm_dpy will be set to NULL.
 		    xterm_update();
 		    method = CLIPMETHOD_X11;
-		    *regular = *primary = true;
+		    *plus = *star = true;
 		}
 #endif
 	    }
@@ -3527,7 +3527,7 @@ get_clipmethod(char_u *str, bool *regular, bool *primary)
 	    if (gui.in_use)
 	    {
 		method = CLIPMETHOD_GUI;
-		*regular = *primary = true;
+		*star = *plus = true;
 	    }
 #endif
 	}
@@ -3535,27 +3535,40 @@ get_clipmethod(char_u *str, bool *regular, bool *primary)
 	{
 #ifndef UNIX
 		method = CLIPMETHOD_OTHER;
-		*regular = *primary = true;
+		*plus = *star = true;
 #endif
 	}
 	else
 	{
 #ifdef FEAT_CLIPBOARD_PROVIDER
 	    // Check if it is the name of a provider
-	    int reg = clip_provider_is_available(&clip_plus, buf);
-	    int pri = clip_provider_is_available(&clip_star, buf);
+#ifndef ONE_CLIPBOARD
+	    int plus_avail = clip_provider_is_available(&clip_plus, buf);
+#endif
+	    int star_avail = clip_provider_is_available(&clip_star, buf);
 
-	    if (reg == 1 || pri == 1)
+	    if (
+#ifndef ONE_CLIPBOARD
+		    plus_avail == 1 ||
+#endif
+		    star_avail == 1)
 	    {
 		method = CLIPMETHOD_PROVIDER;
 
 		vim_free(clipprovider_name);
 		clipprovider_name = vim_strsave(buf);
 
-		*regular = reg == 1;
-		*primary = pri == 1;
+#ifndef ONE_CLIPBOARD
+		*plus = plus_avail == 1;
+#endif
+		*star = star_avail == 1;
 	    }
-	    else if (reg == -1)
+
+	    else if (
+#ifndef ONE_CLIPBOARD
+		    plus_avail == -1 ||
+#endif
+		    star_avail == -1)
 #endif
 	    {
 		ret = CLIPMETHOD_FAIL;
@@ -3614,8 +3627,9 @@ clipmethod_to_str(clipmethod_T method)
     char *
 choose_clipmethod(void)
 {
-    bool regular = false, primary = false;
-    clipmethod_T method = get_clipmethod(p_cpm, &regular, &primary);
+    bool plus = false;
+    bool star = false;
+    clipmethod_T method = get_clipmethod(p_cpm, &plus, &star);
 
     if (method == CLIPMETHOD_FAIL)
 	return e_invalid_argument;
@@ -3633,9 +3647,11 @@ choose_clipmethod(void)
     // If we have a clipmethod that works now, then initialize clipboard
     else if (clipmethod == CLIPMETHOD_NONE && method != CLIPMETHOD_NONE)
     {
-	clip_init_single(&clip_plus, regular);
-	clip_init_single(&clip_star, primary);
+#ifndef ONE_CLIPBOARD
+	clip_init_single(&clip_plus, plus);
 	clip_plus.did_warn = false;
+#endif
+	clip_init_single(&clip_star, star);
 	clip_star.did_warn = false;
     }
     else if ((clipmethod != CLIPMETHOD_NONE && method != clipmethod))
@@ -3643,20 +3659,23 @@ choose_clipmethod(void)
 	// Disown clipboard if we are switching to a new method
 	if (clip_star.owned)
 	    clip_lose_selection(&clip_star);
+	clip_init_single(&clip_star, star);
+#ifndef ONE_CLIPBOARD
 	if (clip_plus.owned)
 	    clip_lose_selection(&clip_plus);
-
-	clip_init_single(&clip_plus, regular);
-	clip_init_single(&clip_star, primary);
+	clip_init_single(&clip_plus, plus);
+#endif
     }
     else
     {
 	// If availability of a clipboard changed, then update the clipboard
 	// structure.
-	if (regular != clip_plus.available)
-	    clip_init_single(&clip_plus, regular);
-	if (primary != clip_star.available)
-	    clip_init_single(&clip_star, primary);
+#ifndef ONE_CLIPBOARD
+	if (plus != clip_plus.available)
+	    clip_init_single(&clip_plus, plus);
+#endif
+	if (star != clip_star.available)
+	    clip_init_single(&clip_star, star);
     }
 
     clipmethod = method;
@@ -3724,8 +3743,12 @@ clip_provider_is_available(Clipboard_T *cbd, char_u *provider)
 
     avail = rettv.vval.v_string;
 
-    if ((vim_strchr(avail, '+') != NULL && cbd == &clip_plus)
-	    || (vim_strchr(avail, '*') != NULL && cbd == &clip_star))
+
+    if (
+#ifndef ONE_CLIPBOARD
+	    (vim_strchr(avail, '+') != NULL && cbd == &clip_plus) ||
+#endif
+	    (vim_strchr(avail, '*') != NULL && cbd == &clip_star))
 	res = 1;
 
     if (FALSE)

src/globals.h

@@ -972,8 +972,7 @@ EXTERN int	gui_win_y INIT(= -1);
 
 #ifdef FEAT_CLIPBOARD
 EXTERN Clipboard_T clip_star;	// PRIMARY selection in X11/Wayland
-# if defined(FEAT_X11) || defined(FEAT_WAYLAND_CLIPBOARD) \
-    || ((defined(UNIX) || defined(VMS)) && defined(FEAT_CLIPBOARD_PROVIDER))
+# if defined(FEAT_X11) || defined(FEAT_WAYLAND_CLIPBOARD)
 EXTERN Clipboard_T clip_plus;	// CLIPBOARD selection in X11/Wayland
 # else
 #  define clip_plus clip_star	// there is only one clipboard

src/version.c

@@ -734,6 +734,8 @@ static char *(features[]) =
 
 static int included_patches[] =
 {   /* Add new patch number below this line */
+/**/
+    1860,
 /**/
     1859,
 /**/