updated for version 7.2.409

Problem:    Summary of number of substitutes is incorrect for ":folddo". (Jean
            Johner)
Solution:   Reset sub_nsubs and sub_nlines in global_exe().

src/ex_cmds.c

@@ -4238,6 +4238,7 @@ do_sub(eap)
     char_u	*sub_firstline;		/* allocated copy of first sub line */
     int		endcolumn = FALSE;	/* cursor in last column when done */
     pos_T	old_cursor = curwin->w_cursor;
+    int		start_nsubs;
 
     cmd = eap->arg;
     if (!global_busy)
@@ -4245,6 +4246,7 @@ do_sub(eap)
 	sub_nsubs = 0;
 	sub_nlines = 0;
     }
+    start_nsubs = sub_nsubs;
 
     if (eap->cmdidx == CMD_tilde)
 	which_pat = RE_LAST;	/* use last used regexp */
@@ -5106,7 +5108,7 @@ outofmem:
     if (do_count)
 	curwin->w_cursor = old_cursor;
 
-    if (sub_nsubs)
+    if (sub_nsubs > start_nsubs)
     {
 	/* Set the '[ and '] marks. */
 	curbuf->b_op_start.lnum = eap->line1;
@@ -5236,8 +5238,6 @@ ex_global(eap)
 	type = *eap->cmd;
     cmd = eap->arg;
     which_pat = RE_LAST;	    /* default: use last used regexp */
-    sub_nsubs = 0;
-    sub_nlines = 0;
 
     /*
      * undocumented vi feature:
@@ -5341,6 +5341,8 @@ global_exe(cmd)
     /* When the command writes a message, don't overwrite the command. */
     msg_didout = TRUE;
 
+    sub_nsubs = 0;
+    sub_nlines = 0;
     global_need_beginline = FALSE;
     global_busy = 1;
     old_lcount = curbuf->b_ml.ml_line_count;

src/regexp.c

@@ -6963,6 +6963,8 @@ vim_regsub_both(source, dest, copy, magic, backslash)
 	    eval_result = eval_to_string(source + 2, NULL, TRUE);
 	    if (eval_result != NULL)
 	    {
+		int had_backslash = FALSE;
+
 		for (s = eval_result; *s != NUL; mb_ptr_adv(s))
 		{
 		    /* Change NL to CR, so that it becomes a line break.
@@ -6970,7 +6972,20 @@ vim_regsub_both(source, dest, copy, magic, backslash)
 		    if (*s == NL)
 			*s = CAR;
 		    else if (*s == '\\' && s[1] != NUL)
+		    {
 			++s;
+			had_backslash = TRUE;
+		    }
+		}
+		if (had_backslash && backslash)
+		{
+		    /* Backslashes will be consumed, need to double them. */
+		    s = vim_strsave_escaped(eval_result, (char_u *)"\\");
+		    if (s != NULL)
+		    {
+			vim_free(eval_result);
+			eval_result = s;
+		    }
 		}
 
 		dst += STRLEN(eval_result);

src/screen.c

@@ -25,10 +25,11 @@
  * one character which occupies two display cells.
  * For UTF-8 a multi-byte character is converted to Unicode and stored in
  * ScreenLinesUC[].  ScreenLines[] contains the first byte only.  For an ASCII
- * character without composing chars ScreenLinesUC[] will be 0.  When the
- * character occupies two display cells the next byte in ScreenLines[] is 0.
+ * character without composing chars ScreenLinesUC[] will be 0 and
+ * ScreenLinesC[][] is not used.  When the character occupies two display
+ * cells the next byte in ScreenLines[] is 0.
  * ScreenLinesC[][] contain up to 'maxcombine' composing characters
- * (drawn on top of the first character).  They are 0 when not used.
+ * (drawn on top of the first character).  There is 0 after the last one used.
  * ScreenLines2[] is only used for euc-jp to store the second byte if the
  * first byte is 0x8e (single-width character).
  *
@@ -4893,6 +4894,7 @@ static int comp_char_differs __ARGS((int, int));
 
 /*
  * Return if the composing characters at "off_from" and "off_to" differ.
+ * Only to be used when ScreenLinesUC[off_from] != 0.
  */
     static int
 comp_char_differs(off_from, off_to)
@@ -6281,6 +6283,7 @@ static int screen_comp_differs __ARGS((int, int*));
 /*
  * Return TRUE if composing characters for screen posn "off" differs from
  * composing characters in "u8cc".
+ * Only to be used when ScreenLinesUC[off] != 0.
  */
     static int
 screen_comp_differs(off, u8cc)
@@ -6461,8 +6464,10 @@ screen_puts_len(text, len, row, col, attr)
 		    && c == 0x8e
 		    && ScreenLines2[off] != ptr[1])
 		|| (enc_utf8
-		    && (ScreenLinesUC[off] != (u8char_T)(c >= 0x80 ? u8c : 0)
-			|| screen_comp_differs(off, u8cc)))
+		    && (ScreenLinesUC[off] !=
+				(u8char_T)(c < 0x80 && u8cc[0] == 0 ? 0 : u8c)
+			|| (ScreenLinesUC[off] != 0
+					  && screen_comp_differs(off, u8cc))))
 #endif
 		|| ScreenAttrs[off] != attr
 		|| exmode_active;
@@ -7542,7 +7547,7 @@ retry:
 	new_ScreenLinesUC = (u8char_T *)lalloc((long_u)(
 			     (Rows + 1) * Columns * sizeof(u8char_T)), FALSE);
 	for (i = 0; i < p_mco; ++i)
-	    new_ScreenLinesC[i] = (u8char_T *)lalloc((long_u)(
+	    new_ScreenLinesC[i] = (u8char_T *)lalloc_clear((long_u)(
 			     (Rows + 1) * Columns * sizeof(u8char_T)), FALSE);
     }
     if (enc_dbcs == DBCS_JPNU)

src/version.c

@@ -681,6 +681,14 @@ static char *(features[]) =
 
 static int included_patches[] =
 {   /* Add new patch number below this line */
+/**/
+    409,
+/**/
+    408,
+/**/
+    407,
+/**/
+    406,
 /**/
     405,
 /**/