patch 7.4.1833

Problem:    Cannot use an Ex command for 'keywordprg'.
Solution:   Accept an Ex command. (Nelo-Thara Wallus)

runtime/doc/options.txt

@@ -4587,16 +4587,18 @@ A jump table for the options with a short description can be found at |Q_op|.
 
 					*'keywordprg'* *'kp'*
 'keywordprg' 'kp'	string	(default "man" or "man -s",  DOS: ":help",
-						OS/2: "view /", VMS: "help")
+								  VMS: "help")
 			global or local to buffer |global-local|
 			{not in Vi}
 	Program to use for the |K| command.  Environment variables are
 	expanded |:set_env|.  ":help" may be used to access the Vim internal
 	help.  (Note that previously setting the global option to the empty
 	value did this, which is now deprecated.)
-	When "man" is used, Vim will automatically translate a count for the
-	"K" command to a section number.  Also for "man -s", in which case the
-	"-s" is removed when there is no count.
+	When the first character is ":", the command is invoked as a Vim
+	Ex command prefixed with [count].
+	When "man", "man -s" or an Ex command is used, Vim will automatically
+	translate a count for the "K" command and pass it as the first
+	argument.  For "man -s" the "-s" is removed when there is no count.
 	See |option-backslash| about including spaces and backslashes.
 	Example: >
 		:set keywordprg=man\ -s

src/normal.c

@@ -5485,10 +5485,12 @@ nv_ident(cmdarg_T *cap)
 {
     char_u	*ptr = NULL;
     char_u	*buf;
+    unsigned	buflen;
     char_u	*newbuf;
     char_u	*p;
     char_u	*kp;		/* value of 'keywordprg' */
-    int		kp_help;	/* 'keywordprg' is ":help" */
+    int		kp_help;	/* 'keywordprg' is ":he" */
+    int		kp_ex;		/* 'keywordprg' starts with ":" */
     int		n = 0;		/* init for GCC */
     int		cmdchar;
     int		g_cmd;		/* "g" command */
@@ -5536,7 +5538,9 @@ nv_ident(cmdarg_T *cap)
     kp = (*curbuf->b_p_kp == NUL ? p_kp : curbuf->b_p_kp);
     kp_help = (*kp == NUL || STRCMP(kp, ":he") == 0
 						 || STRCMP(kp, ":help") == 0);
-    buf = alloc((unsigned)(n * 2 + 30 + STRLEN(kp)));
+    kp_ex = (*kp == ':');
+    buflen = (unsigned)(n * 2 + 30 + STRLEN(kp));
+    buf = alloc(buflen);
     if (buf == NULL)
 	return;
     buf[0] = NUL;
@@ -5562,6 +5566,15 @@ nv_ident(cmdarg_T *cap)
 	case 'K':
 	    if (kp_help)
 		STRCPY(buf, "he! ");
+	    else if (kp_ex)
+	    {
+		if (cap->count0 != 0)
+		    vim_snprintf((char *)buf, buflen, "%s %ld",
+							     kp, cap->count0);
+		else
+		    STRCPY(buf, kp);
+		STRCAT(buf, " ");
+	    }
 	    else
 	    {
 		/* An external command will probably use an argument starting

src/version.c

@@ -753,6 +753,8 @@ static char *(features[]) =
 
 static int included_patches[] =
 {   /* Add new patch number below this line */
+/**/
+    1833,
 /**/
     1832,
 /**/