# HG changeset patch
# User Bram Moolenaar <bram@vim.org>
# Date 1370460637 -7200
# Node ID 532a9855bd30d28cc14848ce5136658a273bc999
# Parent  7bb5ac89e9adb973f7b00e0317fccdadc20518ef
updated for version 7.3.1127
Problem:    No error for using empty \%[].
Solution:   Give error message.

diff --git a/src/regexp.c b/src/regexp.c
--- a/src/regexp.c
+++ b/src/regexp.c
@@ -366,7 +366,7 @@ static char_u e_z_not_allowed[] = N_("E6
 static char_u e_z1_not_allowed[] = N_("E67: \\z1 et al. not allowed here");
 #endif
 static char_u e_missing_sb[] = N_("E69: Missing ] after %s%%[");
-
+static char_u e_empty_sb[]  = N_("E70: Empty %s%%[]");
 #define NOT_MULTI	0
 #define MULTI_ONE	1
 #define MULTI_MULT	2
@@ -2227,7 +2227,7 @@ regatom(flagp)
 				      return NULL;
 			      }
 			      if (ret == NULL)
-				  EMSG2_RET_NULL(_("E70: Empty %s%%[]"),
+				  EMSG2_RET_NULL(_(e_empty_sb),
 						      reg_magic == MAGIC_ALL);
 			      lastbranch = regnode(BRANCH);
 			      br = regnode(NOTHING);
diff --git a/src/regexp_nfa.c b/src/regexp_nfa.c
--- a/src/regexp_nfa.c
+++ b/src/regexp_nfa.c
@@ -977,6 +977,9 @@ nfa_regatom()
 						      reg_magic == MAGIC_ALL);
 			    EMIT(c);
 			}
+			if (n == 0)
+			    EMSG2_RET_FAIL(_(e_empty_sb),
+						      reg_magic == MAGIC_ALL);
 			EMIT(NFA_OPT_CHARS);
 			EMIT(n);
 			break;
diff --git a/src/version.c b/src/version.c
--- a/src/version.c
+++ b/src/version.c
@@ -729,6 +729,8 @@ static char *(features[]) =
 static int included_patches[] =
 {   /* Add new patch number below this line */
 /**/
+    1127,
+/**/
     1126,
 /**/
     1125,