patch 9.1.1182: No cmdline completion for 'completefuzzycollect'

Problem:  No cmdline completion for the 'completefuzzycollect' option
          (after v9.1.1178)
Solution: Add cmdline completion for the 'completefuzzycollect' option,
          improve its description in optwin.vim (zeertzjq).

closes: #16813

Signed-off-by: zeertzjq <zeertzjq@outlook.com>
Signed-off-by: Christian Brabandt <cb@256bit.org>

runtime/doc/options.txt

@@ -1,4 +1,4 @@
-*options.txt*	For Vim version 9.1.  Last change: 2025 Mar 06
+*options.txt*	For Vim version 9.1.  Last change: 2025 Mar 07
 
 
 		  VIM REFERENCE MANUAL	  by Bram Moolenaar

runtime/optwin.vim

@@ -1,7 +1,7 @@
 " These commands create the option window.
 "
 " Maintainer:	The Vim Project <https://github.com/vim/vim>
-" Last Change:	2025 Feb 08
+" Last Change:	2025 Mar 07
 " Former Maintainer:	Bram Moolenaar <Bram@vim.org>
 
 " If there already is an option window, jump to that one.
@@ -849,7 +849,7 @@ if has("insert_expand")
   call <SID>AddOption("complete", gettext("specifies how Insert mode completion works for CTRL-N and CTRL-P"))
   call append("$", "\t" .. s:local_to_buffer)
   call <SID>OptionL("cfc")
-  call <SID>AddOption("completefuzzycollect", gettext("using fuzzy collect for defaule completion mode"))
+  call <SID>AddOption("completefuzzycollect", gettext("use fuzzy collection for specific completion modes"))
   call <SID>OptionL("cpt")
   call <SID>AddOption("completeopt", gettext("whether to use a popup menu for Insert mode completion"))
   call <SID>OptionL("cot")

src/optiondefs.h

@@ -656,7 +656,7 @@ static struct vimoption options[] =
 #endif
 			    SCTX_INIT},
     {"completefuzzycollect", "cfc", P_STRING|P_VI_DEF|P_ONECOMMA|P_NODUP,
-			    (char_u *)&p_cfc, PV_NONE, did_set_completefuzzycollect, NULL,
+			    (char_u *)&p_cfc, PV_NONE, did_set_completefuzzycollect, expand_set_completefuzzycollect,
 			    {(char_u *)"", (char_u *)0L}
 			    SCTX_INIT},
     {"completeitemalign", "cia", P_STRING|P_VI_DEF|P_ONECOMMA|P_NODUP,

src/optionstr.c

@@ -1659,6 +1659,20 @@ did_set_completefuzzycollect(optset_T *args UNUSED)
     return NULL;
 }
 
+    int
+expand_set_completefuzzycollect(
+	optexpand_T *args,
+	int *numMatches,
+	char_u ***matches)
+{
+    return expand_set_opt_string(
+	    args,
+	    p_cfc_values,
+	    ARRAY_LENGTH(p_cfc_values) - 1,
+	    numMatches,
+	    matches);
+}
+
 /*
  * The 'completeitemalign' option is changed.
  */

src/proto/optionstr.pro

@@ -44,6 +44,7 @@ char *did_set_completeopt(optset_T *args);
 int expand_set_completeopt(optexpand_T *args, int *numMatches, char_u ***matches);
 char *did_set_completeitemalign(optset_T *args);
 char *did_set_completefuzzycollect(optset_T *args);
+int expand_set_completefuzzycollect(optexpand_T *args, int *numMatches, char_u ***matches);
 char *did_set_completepopup(optset_T *args);
 char *did_set_completeslash(optset_T *args);
 int expand_set_completeslash(optexpand_T *args, int *numMatches, char_u ***matches);

src/testdir/test_options.vim

@@ -501,6 +501,7 @@ func Test_set_completion_string_values()
   endif
   call assert_equal('.', getcompletion('set complete=', 'cmdline')[1])
   call assert_equal('menu', getcompletion('set completeopt=', 'cmdline')[1])
+  call assert_equal('keyword', getcompletion('set completefuzzycollect=', 'cmdline')[0])
   if exists('+completeslash')
     call assert_equal('backslash', getcompletion('set completeslash=', 'cmdline')[1])
   endif

src/version.c

@@ -704,6 +704,8 @@ static char *(features[]) =
 
 static int included_patches[] =
 {   /* Add new patch number below this line */
+/**/
+    1182,
 /**/
     1181,
 /**/