gistfile1.diff

diff -r 5cf390d4fbe1 src/eval.c
--- a/src/eval.c     Thu Jan 17 18:34:06 2013 +0100
+++ b/src/eval.c	Mon Jan 21 10:15:14 2013 +0900
@@ -360,6 +360,7 @@
     {VV_NAME("searchforward",	 VAR_NUMBER), 0},
     {VV_NAME("oldfiles",	 VAR_LIST), 0},
     {VV_NAME("windowid",	 VAR_NUMBER), VV_RO},
+    {VV_NAME("command",		 VAR_STRING), VV_RO},
 };
 
 /* shorthand */
diff -r 5cf390d4fbe1 src/ex_docmd.c
--- a/src/ex_docmd.c	Thu Jan 17 18:34:06 2013 +0100
+++ b/src/ex_docmd.c	Mon Jan 21 10:15:14 2013 +0900
@@ -2145,6 +2145,16 @@
     {
 	if (!ea.skip)
 	{
+#ifdef FEAT_AUTOCMD
+	    if (has_commandnotfound())
+	    {
+		set_vim_var_string(VV_COMMAND, *cmdlinep, -1);
+		int ret = apply_autocmds(EVENT_COMMANDNOTFOUND, NULL, NULL, FALSE, curbuf);
+		set_vim_var_string(VV_COMMAND, NULL, -1);
+		if (ret)
+		    goto doend;
+	    }
+#endif
 	    STRCPY(IObuff, _("E492: Not an editor command"));
 	    if (!sourcing)
 		append_command(*cmdlinep);
diff -r 5cf390d4fbe1 src/fileio.c
--- a/src/fileio.c	Thu Jan 17 18:34:06 2013 +0100
+++ b/src/fileio.c	Mon Jan 21 10:15:14 2013 +0900
@@ -7658,6 +7658,7 @@
     {"CmdwinEnter",	EVENT_CMDWINENTER},
     {"CmdwinLeave",	EVENT_CMDWINLEAVE},
     {"ColorScheme",	EVENT_COLORSCHEME},
+    {"CommandNotFound",	EVENT_COMMANDNOTFOUND},
     {"CompleteDone",	EVENT_COMPLETEDONE},
     {"CursorHold",	EVENT_CURSORHOLD},
     {"CursorHoldI",	EVENT_CURSORHOLDI},
@@ -9143,6 +9144,16 @@
     return (first_autopat[(int)EVENT_INSERTCHARPRE] != NULL);
 }
 
+/*
+ * Return TRUE when there is an CommandNotFound autocommand defined.
+ */
+    int
+has_commandnotfound()
+{
+    return (first_autopat[(int)EVENT_COMMANDNOTFOUND] != NULL);
+}
+
+
     static int
 apply_autocmds_group(event, fname, fname_io, force, group, buf, eap)
     event_T	event;
diff -r 5cf390d4fbe1 src/proto/fileio.pro
--- a/src/proto/fileio.pro	Thu Jan 17 18:34:06 2013 +0100
+++ b/src/proto/fileio.pro	Mon Jan 21 10:15:14 2013 +0900
@@ -45,6 +45,7 @@
 int has_cursormoved __ARGS((void));
 int has_cursormovedI __ARGS((void));
 int has_insertcharpre __ARGS((void));
+int has_commandnotfound __ARGS((void));
 void block_autocmds __ARGS((void));
 void unblock_autocmds __ARGS((void));
 char_u *getnextac __ARGS((int c, void *cookie, int indent));
diff -r 5cf390d4fbe1 src/vim.h
--- a/src/vim.h	Thu Jan 17 18:34:06 2013 +0100
+++ b/src/vim.h	Mon Jan 21 10:15:14 2013 +0900
@@ -1300,6 +1300,7 @@
     EVENT_TABENTER,		/* after entering a tab page */
     EVENT_SHELLCMDPOST,		/* after ":!cmd" */
     EVENT_SHELLFILTERPOST,	/* after ":1,2!cmd", ":w !cmd", ":r !cmd". */
+    EVENT_COMMANDNOTFOUND,	/* command not found */
     NUM_EVENTS			/* MUST be the last one */
 };
 
@@ -1870,7 +1871,8 @@
 #define VV_SEARCHFORWARD 53
 #define VV_OLDFILES	54
 #define VV_WINDOWID	55
-#define VV_LEN		56	/* number of v: vars */
+#define VV_COMMAND	56
+#define VV_LEN		57	/* number of v: vars */
 
 #ifdef FEAT_CLIPBOARD