vim-patch:7.4.437

Problem:    New and old regexp engine are not consistent.
Solution:   Also give an error for "\ze*" for the old regexp engine.

https://code.google.com/p/vim/source/detail?r=v7-4-437

src/nvim/regexp.c

@@ -1983,9 +1983,15 @@ static char_u *regatom(int *flagp)
       break;
 
     case 's': ret = regnode(MOPEN + 0);
+      if (!re_mult_next("\\zs")) {
+        return NULL;
+      }
       break;
 
     case 'e': ret = regnode(MCLOSE + 0);
+      if (!re_mult_next("\\ze")) {
+        return NULL;
+      }
       break;
 
     default:  EMSG_RET_NULL(_("E68: Invalid character after \\z"));
@@ -2460,6 +2466,15 @@ do_multibyte:
   return ret;
 }
 
+/// Used in a place where no * or \+ can follow.
+static bool re_mult_next(char *what)
+{
+  if (re_multi_type(peekchr()) == MULTI_MULT) {
+    EMSG2_RET_FAIL(_("E888: (NFA regexp) cannot repeat %s"), what);
+  }
+  return true;
+}
+
 /*
  * Return TRUE if MULTIBYTECODE should be used instead of EXACTLY for
  * character "c".

src/nvim/regexp_nfa.c

@@ -1747,15 +1747,6 @@ nfa_do_multibyte:
   return OK;
 }
 
-/// Used in a place where no * or \+ can follow.
-static bool re_mult_next(char *what)
-{
-  if (re_multi_type(peekchr()) == MULTI_MULT) {
-    EMSG2_RET_FAIL(_("E888: (NFA regexp) cannot repeat %s"), what);
-  }
-  return true;
-}
-
 /*
  * Parse something followed by possible [*+=].
  *

src/nvim/version.c

@@ -228,7 +228,7 @@ static int included_patches[] = {
   440,
   439,
   //438,
-  //437,
+  437,
   436,
   //435,
   //434,