# HG changeset patch
# User Bram Moolenaar <bram@vim.org>
# Date 1383964311 -3600
# Node ID 9c777e2c702487bd0b5c48a22edc17c98b87e070
# Parent  3d194611edadfcfb031e2eea127ad0013380d34b
updated for version 7.4.082
Problem:    Using "gf" in a changed buffer suggests adding "!", which is not
	    possible. (Tim Chase)
Solution:   Pass a flag to check_changed() wether adding ! make sense.

diff --git a/src/ex_cmds.c b/src/ex_cmds.c
--- a/src/ex_cmds.c
+++ b/src/ex_cmds.c
@@ -3253,8 +3253,10 @@ do_ecmd(fnum, ffname, sfname, eap, newln
     if (  ((!other_file && !(flags & ECMD_OLDBUF))
 	    || (curbuf->b_nwindows == 1
 		&& !(flags & (ECMD_HIDE | ECMD_ADDBUF))))
-	&& check_changed(curbuf, p_awa, !other_file,
-					(flags & ECMD_FORCEIT), FALSE))
+	&& check_changed(curbuf, (p_awa ? CCGD_AW : 0)
+			       | (other_file ? 0 : CCGD_MULTWIN)
+			       | ((flags & ECMD_FORCEIT) ? CCGD_FORCEIT : 0)
+			       | (eap == NULL ? 0 : CCGD_EXCMD)))
     {
 	if (fnum == 0 && other_file && ffname != NULL)
 	    (void)setaltfname(ffname, sfname, newlnum < 0 ? 0 : newlnum);
@@ -7664,7 +7666,7 @@ ex_drop(eap)
 # ifdef FEAT_WINDOWS
 	    ++emsg_off;
 # endif
-	    split = check_changed(curbuf, TRUE, FALSE, FALSE, FALSE);
+	    split = check_changed(curbuf, CCGD_AW | CCGD_EXCMD);
 # ifdef FEAT_WINDOWS
 	    --emsg_off;
 # else
diff --git a/src/ex_cmds2.c b/src/ex_cmds2.c
--- a/src/ex_cmds2.c
+++ b/src/ex_cmds2.c
@@ -1436,20 +1436,20 @@ autowrite_all()
 }
 
 /*
- * return TRUE if buffer was changed and cannot be abandoned.
+ * Return TRUE if buffer was changed and cannot be abandoned.
+ * For flags use the CCGD_ values.
  */
     int
-check_changed(buf, checkaw, mult_win, forceit, allbuf)
+check_changed(buf, flags)
     buf_T	*buf;
-    int		checkaw;	/* do autowrite if buffer was changed */
-    int		mult_win;	/* check also when several wins for the buf */
-    int		forceit;
-    int		allbuf UNUSED;	/* may write all buffers */
+    int		flags;
 {
+    int forceit = (flags & CCGD_FORCEIT);
+
     if (       !forceit
 	    && bufIsChanged(buf)
-	    && (mult_win || buf->b_nwindows <= 1)
-	    && (!checkaw || autowrite(buf, forceit) == FAIL))
+	    && ((flags & CCGD_MULTWIN) || buf->b_nwindows <= 1)
+	    && (!(flags & CCGD_AW) || autowrite(buf, forceit) == FAIL))
     {
 #if defined(FEAT_GUI_DIALOG) || defined(FEAT_CON_DIALOG)
 	if ((p_confirm || cmdmod.confirm) && p_write)
@@ -1457,7 +1457,7 @@ check_changed(buf, checkaw, mult_win, fo
 	    buf_T	*buf2;
 	    int		count = 0;
 
-	    if (allbuf)
+	    if (flags & CCGD_ALLBUF)
 		for (buf2 = firstbuf; buf2 != NULL; buf2 = buf2->b_next)
 		    if (bufIsChanged(buf2)
 				     && (buf2->b_ffname != NULL
@@ -1480,7 +1480,10 @@ check_changed(buf, checkaw, mult_win, fo
 	    return bufIsChanged(buf);
 	}
 #endif
-	EMSG(_(e_nowrtmsg));
+	if (flags & CCGD_EXCMD)
+	    EMSG(_(e_nowrtmsg));
+	else
+	    EMSG(_(e_nowrtmsg_nobang));
 	return TRUE;
     }
     return FALSE;
@@ -1690,7 +1693,9 @@ check_changed_any(hidden)
 	{
 	    /* Try auto-writing the buffer.  If this fails but the buffer no
 	    * longer exists it's not changed, that's OK. */
-	    if (check_changed(buf, p_awa, TRUE, FALSE, TRUE) && buf_valid(buf))
+	    if (check_changed(buf, (p_awa ? CCGD_AW : 0)
+				 | CCGD_MULTWIN
+				 | CCGD_ALLBUF) && buf_valid(buf))
 		break;	    /* didn't save - still changes */
 	}
     }
@@ -2274,7 +2279,10 @@ do_argfile(eap, argn)
 		vim_free(p);
 	    }
 	    if ((!P_HID(curbuf) || !other)
-		  && check_changed(curbuf, TRUE, !other, eap->forceit, FALSE))
+		  && check_changed(curbuf, CCGD_AW
+					 | (other ? 0 : CCGD_MULTWIN)
+					 | (eap->forceit ? CCGD_FORCEIT : 0)
+					 | CCGD_EXCMD))
 		return;
 	}
 
@@ -2315,7 +2323,9 @@ ex_next(eap)
      */
     if (       P_HID(curbuf)
 	    || eap->cmdidx == CMD_snext
-	    || !check_changed(curbuf, TRUE, FALSE, eap->forceit, FALSE))
+	    || !check_changed(curbuf, CCGD_AW
+				    | (eap->forceit ? CCGD_FORCEIT : 0)
+				    | CCGD_EXCMD))
     {
 	if (*eap->arg != NUL)		    /* redefine file list */
 	{
@@ -2458,7 +2468,9 @@ ex_listdo(eap)
     if (eap->cmdidx == CMD_windo
 	    || eap->cmdidx == CMD_tabdo
 	    || P_HID(curbuf)
-	    || !check_changed(curbuf, TRUE, FALSE, eap->forceit, FALSE))
+	    || !check_changed(curbuf, CCGD_AW
+				    | (eap->forceit ? CCGD_FORCEIT : 0)
+				    | CCGD_EXCMD))
     {
 	/* start at the first argument/window/buffer */
 	i = 0;
diff --git a/src/ex_docmd.c b/src/ex_docmd.c
--- a/src/ex_docmd.c
+++ b/src/ex_docmd.c
@@ -6565,7 +6565,9 @@ ex_quit(eap)
     if (check_more(FALSE, eap->forceit) == OK && only_one_window())
 	exiting = TRUE;
     if ((!P_HID(curbuf)
-		&& check_changed(curbuf, p_awa, FALSE, eap->forceit, FALSE))
+		&& check_changed(curbuf, (p_awa ? CCGD_AW : 0)
+				       | (eap->forceit ? CCGD_FORCEIT : 0)
+				       | CCGD_EXCMD))
 	    || check_more(TRUE, eap->forceit) == FAIL
 	    || (only_one_window() && check_changed_any(eap->forceit)))
     {
@@ -7099,7 +7101,7 @@ handle_drop(filec, filev, split)
     if (!P_HID(curbuf) && !split)
     {
 	++emsg_off;
-	split = check_changed(curbuf, TRUE, FALSE, FALSE, FALSE);
+	split = check_changed(curbuf, CCGD_AW);
 	--emsg_off;
     }
     if (split)
@@ -7361,7 +7363,11 @@ ex_recover(eap)
 {
     /* Set recoverymode right away to avoid the ATTENTION prompt. */
     recoverymode = TRUE;
-    if (!check_changed(curbuf, p_awa, TRUE, eap->forceit, FALSE)
+    if (!check_changed(curbuf, (p_awa ? CCGD_AW : 0)
+			     | CCGD_MULTWIN
+			     | (eap->forceit ? CCGD_FORCEIT : 0)
+			     | CCGD_EXCMD)
+
 	    && (*eap->arg == NUL
 			     || setfname(curbuf, eap->arg, NULL, TRUE) == OK))
 	ml_recover();
diff --git a/src/globals.h b/src/globals.h
--- a/src/globals.h
+++ b/src/globals.h
@@ -1490,6 +1490,7 @@ EXTERN char_u e_notmp[]		INIT(= N_("E483
 EXTERN char_u e_notopen[]	INIT(= N_("E484: Can't open file %s"));
 EXTERN char_u e_notread[]	INIT(= N_("E485: Can't read file %s"));
 EXTERN char_u e_nowrtmsg[]	INIT(= N_("E37: No write since last change (add ! to override)"));
+EXTERN char_u e_nowrtmsg_nobang[]   INIT(= N_("E37: No write since last change"));
 EXTERN char_u e_null[]		INIT(= N_("E38: Null argument"));
 #ifdef FEAT_DIGRAPHS
 EXTERN char_u e_number_exp[]	INIT(= N_("E39: Number expected"));
diff --git a/src/proto/ex_cmds2.pro b/src/proto/ex_cmds2.pro
--- a/src/proto/ex_cmds2.pro
+++ b/src/proto/ex_cmds2.pro
@@ -35,7 +35,7 @@ void prof_inchar_exit __ARGS((void));
 int prof_def_func __ARGS((void));
 int autowrite __ARGS((buf_T *buf, int forceit));
 void autowrite_all __ARGS((void));
-int check_changed __ARGS((buf_T *buf, int checkaw, int mult_win, int forceit, int allbuf));
+int check_changed __ARGS((buf_T *buf, int flags));
 void browse_save_fname __ARGS((buf_T *buf));
 void dialog_changed __ARGS((buf_T *buf, int checkall));
 int can_abandon __ARGS((buf_T *buf, int forceit));
diff --git a/src/version.c b/src/version.c
--- a/src/version.c
+++ b/src/version.c
@@ -739,6 +739,8 @@ static char *(features[]) =
 static int included_patches[] =
 {   /* Add new patch number below this line */
 /**/
+    82,
+/**/
     81,
 /**/
     80,
diff --git a/src/vim.h b/src/vim.h
--- a/src/vim.h
+++ b/src/vim.h
@@ -1176,6 +1176,15 @@ extern char *(*dyn_libintl_textdomain)(c
 #define RESIZE_BOTH	15	/* resize in both directions */
 
 /*
+ * flags for check_changed()
+ */
+#define CCGD_AW		1	/* do autowrite if buffer was changed */
+#define CCGD_MULTWIN	2	/* check also when several wins for the buf */
+#define CCGD_FORCEIT	4	/* ! used */
+#define CCGD_ALLBUF	8	/* may write all buffers */
+#define CCGD_EXCMD	16	/* may suggest using ! */
+
+/*
  * "flags" values for option-setting functions.
  * When OPT_GLOBAL and OPT_LOCAL are both missing, set both local and global
  * values, get local value.