MdePkg/Include/PeimDepex.h

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