MdePkg/Include/DxeDepex.h

   1 /** @file
   2   Include file for DXE Dependency Expression *.DXS file.
   3
   4   This include file is only for Dependency Expression *.DXS files and
   5   should not be include directly in modules.
   6
   7   DEPEX (DEPendency EXpresion) BNF Grammer for DXE:
   8   The BNF grammar is thus:
   9 <pre>
  10      <depex>   ::= before GUID
  11                  | after GUID
  12                  | SOR <bool>
  13                  | <bool>
  14      <bool>    ::= <bool> and <term>
  15                  | <bool> or <term>
  16                  | <term>
  17      <term>    ::= not <factor>
  18                  | <factor>
  19      <factor>  ::= <bool>
  20                  | <boolval>
  21                  | <depinst>
  22                  | <termval>
  23      <boolval> ::= true
  24                  | false
  25      <depinst> ::= push GUID
  26      <termval> ::= end
  27 </pre>
  28
  29 Copyright (c) 2006, Intel Corporation
  30 All rights reserved. This program and the accompanying materials
  31 are licensed and made available under the terms and conditions of the BSD License
  32 which accompanies this distribution.  The full text of the license may be found at
  33 http://opensource.org/licenses/bsd-license.php
  34
  35 THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,
  36 WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.
  37
  38 **/
  39
  40 #ifndef __DXE_DEPEX_H__
  41 #define __DXE_DEPEX_H__
  42
  43 //
  44 // The Depex grammer needs the following strings so we must undo
  45 // any pre-processor redefinitions
  46 //
  47 #undef DEPENDENCY_START
  48 #undef BEFORE
  49 #undef AFTER
  50 #undef SOR
  51 #undef AND
  52 #undef OR
  53 #undef NOT
  54 #undef TRUE
  55 #undef FALSE
  56 #undef DEPENDENCY_END
  57
  58 #endif