(parse_reg_exp): If '|' is immediately followed by another '|', end of regex or enclo...

diff --git a/posix/regcomp.c b/posix/regcomp.c
index 0613de6..9406383 100644 (file)
--- a/posix/regcomp.c
+++ b/posix/regcomp.c
@@ -1807,6 +1807,8 @@ parse_reg_exp (regexp, preg, token, syntax, nest, err)
               return NULL;
             }
         }
+      else
+       branch = NULL;
       tree = create_tree (tree, branch, 0, new_idx);
       if (BE (new_idx == -1 || tree == NULL, 0))
         return *err = REG_ESPACE, NULL;