## @file
# This file is used to parse meta files
#
# Copyright (c) 2008 - 2015, Intel Corporation. All rights reserved.<BR>
# This program and the accompanying materials
# are licensed and made available under the terms and conditions of the BSD License
# which accompanies this distribution.  The full text of the license may be found at
# http://opensource.org/licenses/bsd-license.php
#
# THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,
# WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.
#

##
# Import Modules
#
import Common.LongFilePathOs as os
import re
import time
import copy

import Common.EdkLogger as EdkLogger
import Common.GlobalData as GlobalData
import EccGlobalData
import EccToolError

from CommonDataClass.DataClass import *
from Common.DataType import *
from Common.String import *
from Common.Misc import GuidStructureStringToGuidString, CheckPcdDatum, PathClass, AnalyzePcdData
from Common.Expression import *
from CommonDataClass.Exceptions import *

from MetaFileTable import MetaFileStorage
from GenFds.FdfParser import FdfParser
from Common.LongFilePathSupport import OpenLongFilePath as open
from Common.LongFilePathSupport import CodecOpenLongFilePath

## A decorator used to parse macro definition
def ParseMacro(Parser):
    def MacroParser(self):
        Match = gMacroDefPattern.match(self._CurrentLine)
        if not Match:
            # Not 'DEFINE/EDK_GLOBAL' statement, call decorated method
            Parser(self)
            return

        TokenList = GetSplitValueList(self._CurrentLine[Match.end(1):], TAB_EQUAL_SPLIT, 1)
        # Syntax check
        if not TokenList[0]:
            EdkLogger.error('Parser', FORMAT_INVALID, "No macro name given",
                            ExtraData=self._CurrentLine, File=self.MetaFile, Line=self._LineIndex+1)
        if len(TokenList) < 2:
            TokenList.append('')

        Type = Match.group(1)
        Name, Value = TokenList
        # Global macros can be only defined via environment variable
        if Name in GlobalData.gGlobalDefines:
            EdkLogger.error('Parser', FORMAT_INVALID, "%s can only be defined via environment variable" % Name,
                            ExtraData=self._CurrentLine, File=self.MetaFile, Line=self._LineIndex+1)
        # Only upper case letters, digit and '_' are allowed
        if not gMacroNamePattern.match(Name):
            EdkLogger.error('Parser', FORMAT_INVALID, "The macro name must be in the pattern [A-Z][A-Z0-9_]*",
                            ExtraData=self._CurrentLine, File=self.MetaFile, Line=self._LineIndex+1)

        Value = ReplaceMacro(Value, self._Macros)
        self._ItemType = MODEL_META_DATA_DEFINE
        # DEFINE defined macros
        if Type == TAB_DSC_DEFINES_DEFINE:
            if type(self) == DecParser:
                if MODEL_META_DATA_HEADER in self._SectionType:
                    self._FileLocalMacros[Name] = Value
                else:
                    for Scope in self._Scope:
                        self._SectionsMacroDict.setdefault((Scope[2], Scope[0], Scope[1]), {})[Name] = Value
            elif self._SectionType == MODEL_META_DATA_HEADER:
                self._FileLocalMacros[Name] = Value
            else:
                SectionDictKey = self._SectionType, self._Scope[0][0], self._Scope[0][1]
                if SectionDictKey not in self._SectionsMacroDict:
                    self._SectionsMacroDict[SectionDictKey] = {}
                SectionLocalMacros = self._SectionsMacroDict[SectionDictKey]
                SectionLocalMacros[Name] = Value
        # EDK_GLOBAL defined macros
        elif type(self) != DscParser:
            EdkLogger.error('Parser', FORMAT_INVALID, "EDK_GLOBAL can only be used in .dsc file",
                            ExtraData=self._CurrentLine, File=self.MetaFile, Line=self._LineIndex+1)
        elif self._SectionType != MODEL_META_DATA_HEADER:
            EdkLogger.error('Parser', FORMAT_INVALID, "EDK_GLOBAL can only be used under [Defines] section",
                            ExtraData=self._CurrentLine, File=self.MetaFile, Line=self._LineIndex+1)
        elif (Name in self._FileLocalMacros) and (self._FileLocalMacros[Name] != Value):
            EdkLogger.error('Parser', FORMAT_INVALID, "EDK_GLOBAL defined a macro with the same name and different value as one defined by 'DEFINE'",
                            ExtraData=self._CurrentLine, File=self.MetaFile, Line=self._LineIndex+1)
            
        self._ValueList = [Type, Name, Value]

    return MacroParser

## Base class of parser
#
#  This class is used for derivation purpose. The specific parser for one kind
# type file must derive this class and implement some public interfaces.
#
#   @param      FilePath        The path of platform description file
#   @param      FileType        The raw data of DSC file
#   @param      Table           Database used to retrieve module/package information
#   @param      Macros          Macros used for replacement in file
#   @param      Owner           Owner ID (for sub-section parsing)
#   @param      From            ID from which the data comes (for !INCLUDE directive)
#
class MetaFileParser(object):
    # data type (file content) for specific file type
    DataType = {}

    # Parser objects used to implement singleton
    MetaFiles = {}

    ## Factory method
    #
    # One file, one parser object. This factory method makes sure that there's
    # only one object constructed for one meta file.
    #
    #   @param  Class           class object of real AutoGen class
    #                           (InfParser, DecParser or DscParser)
    #   @param  FilePath        The path of meta file
    #   @param  *args           The specific class related parameters
    #   @param  **kwargs        The specific class related dict parameters
    #
    def __new__(Class, FilePath, *args, **kwargs):
        if FilePath in Class.MetaFiles:
            return Class.MetaFiles[FilePath]
        else:
            ParserObject = super(MetaFileParser, Class).__new__(Class)
            Class.MetaFiles[FilePath] = ParserObject
            return ParserObject

    ## Constructor of MetaFileParser
    #
    #  Initialize object of MetaFileParser
    #
    #   @param      FilePath        The path of platform description file
    #   @param      FileType        The raw data of DSC file
    #   @param      Table           Database used to retrieve module/package information
    #   @param      Macros          Macros used for replacement in file
    #   @param      Owner           Owner ID (for sub-section parsing)
    #   @param      From            ID from which the data comes (for !INCLUDE directive)
    #
    def __init__(self, FilePath, FileType, Table, Owner=-1, From=-1):
        self._Table = Table
        self._RawTable = Table
        self._FileType = FileType
        self.MetaFile = FilePath
        self._Defines = {}
        self._FileLocalMacros = {}
        self._SectionsMacroDict = {}

        # for recursive parsing
        self._Owner = [Owner]
        self._From = From

        # parsr status for parsing
        self._ValueList = ['', '', '', '', '']
        self._Scope = []
        self._LineIndex = 0
        self._CurrentLine = ''
        self._SectionType = MODEL_UNKNOWN
        self._SectionName = ''
        self._InSubsection = False
        self._SubsectionType = MODEL_UNKNOWN
        self._SubsectionName = ''
        self._ItemType = MODEL_UNKNOWN
        self._LastItem = -1
        self._Enabled = 0
        self._Finished = False
        self._PostProcessed = False
        # Different version of meta-file has different way to parse.
        self._Version = 0
        # UNI object and extra UNI object
        self._UniObj = None
        self._UniExtraObj = None

    ## Store the parsed data in table
    def _Store(self, *Args):
        return self._Table.Insert(*Args)

    ## Virtual method for starting parse
    def Start(self):
        raise NotImplementedError

    ## Notify a post-process is needed
    def DoPostProcess(self):
        self._PostProcessed = False

    ## Set parsing complete flag in both class and table
    def _Done(self):
        self._Finished = True
        ## Do not set end flag when processing included files
        if self._From == -1:
            self._Table.SetEndFlag()

    def _PostProcess(self):
        self._PostProcessed = True

    ## Get the parse complete flag
    def _GetFinished(self):
        return self._Finished

    ## Set the complete flag
    def _SetFinished(self, Value):
        self._Finished = Value

    ## Use [] style to query data in table, just for readability
    #
    #   DataInfo = [data_type, scope1(arch), scope2(platform/moduletype)]
    #
    def __getitem__(self, DataInfo):
        if type(DataInfo) != type(()):
            DataInfo = (DataInfo,)

        # Parse the file first, if necessary
        if not self._Finished:
            if self._RawTable.IsIntegrity():
                self._Finished = True
            else:
                self._Table = self._RawTable
                self._PostProcessed = False
                self.Start()

        # No specific ARCH or Platform given, use raw data
        if self._RawTable and (len(DataInfo) == 1 or DataInfo[1] == None):
            return self._RawTable.Query(*DataInfo)

        # Do post-process if necessary
        if not self._PostProcessed:
            self._PostProcess()

        return self._Table.Query(*DataInfo)

    ## Data parser for the common format in different type of file
    #
    #   The common format in the meatfile is like
    #
    #       xxx1 | xxx2 | xxx3
    #
    @ParseMacro
    def _CommonParser(self):
        TokenList = GetSplitValueList(self._CurrentLine, TAB_VALUE_SPLIT)
        self._ValueList[0:len(TokenList)] = TokenList

    ## Data parser for the format in which there's path
    #
    #   Only path can have macro used. So we need to replace them before use.
    #
    @ParseMacro
    def _PathParser(self):
        TokenList = GetSplitValueList(self._CurrentLine, TAB_VALUE_SPLIT)
        self._ValueList[0:len(TokenList)] = TokenList
        # Don't do macro replacement for dsc file at this point
        if type(self) != DscParser:
            Macros = self._Macros
            self._ValueList = [ReplaceMacro(Value, Macros) for Value in self._ValueList]

    ## Skip unsupported data
    def _Skip(self):
        if self._SectionName == TAB_USER_EXTENSIONS.upper() and self._CurrentLine.upper().endswith('.UNI'):
            if EccGlobalData.gConfig.UniCheckHelpInfo == '1' or EccGlobalData.gConfig.UniCheckAll == '1' or EccGlobalData.gConfig.CheckAll == '1':
                ExtraUni = self._CurrentLine.strip()
                ExtraUniFile = os.path.join(os.path.dirname(self.MetaFile), ExtraUni)
                IsModuleUni = self.MetaFile.upper().endswith('.INF')
                self._UniExtraObj = UniParser(ExtraUniFile, IsExtraUni=True, IsModuleUni=IsModuleUni)
                self._UniExtraObj.Start()
        else:
            EdkLogger.warn("Parser", "Unrecognized content", File=self.MetaFile,
                            Line=self._LineIndex + 1, ExtraData=self._CurrentLine);
        self._ValueList[0:1] = [self._CurrentLine]

    ## Section header parser
    #
    #   The section header is always in following format:
    #
    #       [section_name.arch<.platform|module_type>]
    #
    def _SectionHeaderParser(self):
        self._Scope = []
        self._SectionName = ''
        ArchList = set()
        for Item in GetSplitValueList(self._CurrentLine[1:-1], TAB_COMMA_SPLIT):
            if Item == '':
                continue
            ItemList = GetSplitValueList(Item, TAB_SPLIT)
            # different section should not mix in one section
            if self._SectionName != '' and self._SectionName != ItemList[0].upper():
                EdkLogger.error('Parser', FORMAT_INVALID, "Different section names in the same section",
                                File=self.MetaFile, Line=self._LineIndex+1, ExtraData=self._CurrentLine)
            self._SectionName = ItemList[0].upper()
            if self._SectionName in self.DataType:
                self._SectionType = self.DataType[self._SectionName]
            else:
                self._SectionType = MODEL_UNKNOWN
                EdkLogger.warn("Parser", "Unrecognized section", File=self.MetaFile,
                                Line=self._LineIndex+1, ExtraData=self._CurrentLine)
            # S1 is always Arch
            if len(ItemList) > 1:
                S1 = ItemList[1].upper()
            else:
                S1 = 'COMMON'
            ArchList.add(S1)
            # S2 may be Platform or ModuleType
            if len(ItemList) > 2:
                S2 = ItemList[2].upper()
            else:
                S2 = 'COMMON'
            self._Scope.append([S1, S2])

        # 'COMMON' must not be used with specific ARCHs at the same section
        if 'COMMON' in ArchList and len(ArchList) > 1:
            EdkLogger.error('Parser', FORMAT_INVALID, "'common' ARCH must not be used with specific ARCHs",
                            File=self.MetaFile, Line=self._LineIndex+1, ExtraData=self._CurrentLine)
        # If the section information is needed later, it should be stored in database
        self._ValueList[0] = self._SectionName

    ## [defines] section parser
    @ParseMacro
    def _DefineParser(self):
        TokenList = GetSplitValueList(self._CurrentLine, TAB_EQUAL_SPLIT, 1)
        self._ValueList[1:len(TokenList)] = TokenList
        if not self._ValueList[1]:
            EdkLogger.error('Parser', FORMAT_INVALID, "No name specified",
                            ExtraData=self._CurrentLine, File=self.MetaFile, Line=self._LineIndex+1)
        if not self._ValueList[2]:
            EdkLogger.error('Parser', FORMAT_INVALID, "No value specified",
                            ExtraData=self._CurrentLine, File=self.MetaFile, Line=self._LineIndex+1)

        self._ValueList = [ReplaceMacro(Value, self._Macros) for Value in self._ValueList]
        Name, Value = self._ValueList[1], self._ValueList[2]
        # Sometimes, we need to make differences between EDK and EDK2 modules 
        if Name == 'INF_VERSION':
            try:
                self._Version = int(Value, 0)
            except:
                EdkLogger.error('Parser', FORMAT_INVALID, "Invalid version number",
                                ExtraData=self._CurrentLine, File=self.MetaFile, Line=self._LineIndex+1)
        elif Name == 'MODULE_UNI_FILE':
            UniFile = os.path.join(os.path.dirname(self.MetaFile), Value)
            if os.path.exists(UniFile):
                self._UniObj = UniParser(UniFile, IsExtraUni=False, IsModuleUni=True)
                self._UniObj.Start()
            else:
                EdkLogger.error('Parser', FILE_NOT_FOUND, "Module UNI file %s is missing." % Value,
                                ExtraData=self._CurrentLine, File=self.MetaFile, Line=self._LineIndex+1,
                                RaiseError=False)
        elif Name == 'PACKAGE_UNI_FILE':
            UniFile = os.path.join(os.path.dirname(self.MetaFile), Value)
            if os.path.exists(UniFile):
                self._UniObj = UniParser(UniFile, IsExtraUni=False, IsModuleUni=False)
        
        if type(self) == InfParser and self._Version < 0x00010005:
            # EDK module allows using defines as macros
            self._FileLocalMacros[Name] = Value
        self._Defines[Name] = Value

    ## [BuildOptions] section parser
    @ParseMacro
    def _BuildOptionParser(self):
        TokenList = GetSplitValueList(self._CurrentLine, TAB_EQUAL_SPLIT, 1)
        TokenList2 = GetSplitValueList(TokenList[0], ':', 1)
        if len(TokenList2) == 2:
            self._ValueList[0] = TokenList2[0]              # toolchain family
            self._ValueList[1] = TokenList2[1]              # keys
        else:
            self._ValueList[1] = TokenList[0]
        if len(TokenList) == 2 and type(self) != DscParser: # value
            self._ValueList[2] = ReplaceMacro(TokenList[1], self._Macros)

        if self._ValueList[1].count('_') != 4:
            EdkLogger.error(
                'Parser',
                FORMAT_INVALID,
                "'%s' must be in format of <TARGET>_<TOOLCHAIN>_<ARCH>_<TOOL>_FLAGS" % self._ValueList[1],
                ExtraData=self._CurrentLine,
                File=self.MetaFile,
                Line=self._LineIndex+1
                )

    def _GetMacros(self):
        Macros = {}
        Macros.update(self._FileLocalMacros)
        Macros.update(self._GetApplicableSectionMacro())
        return Macros


    ## Get section Macros that are applicable to current line, which may come from other sections 
    ## that share the same name while scope is wider
    def _GetApplicableSectionMacro(self):
        Macros = {}
        for Scope1, Scope2 in [("COMMON", "COMMON"), ("COMMON", self._Scope[0][1]),
                               (self._Scope[0][0], "COMMON"), (self._Scope[0][0], self._Scope[0][1])]:
            if (self._SectionType, Scope1, Scope2) in self._SectionsMacroDict:
                Macros.update(self._SectionsMacroDict[(self._SectionType, Scope1, Scope2)])
        return Macros

    _SectionParser  = {}
    Finished        = property(_GetFinished, _SetFinished)
    _Macros         = property(_GetMacros)


## INF file parser class
#
#   @param      FilePath        The path of platform description file
#   @param      FileType        The raw data of DSC file
#   @param      Table           Database used to retrieve module/package information
#   @param      Macros          Macros used for replacement in file
#
class InfParser(MetaFileParser):
    # INF file supported data types (one type per section)
    DataType = {
        TAB_UNKNOWN.upper() : MODEL_UNKNOWN,
        TAB_INF_DEFINES.upper() : MODEL_META_DATA_HEADER,
        TAB_DSC_DEFINES_DEFINE : MODEL_META_DATA_DEFINE,
        TAB_BUILD_OPTIONS.upper() : MODEL_META_DATA_BUILD_OPTION,
        TAB_INCLUDES.upper() : MODEL_EFI_INCLUDE,
        TAB_LIBRARIES.upper() : MODEL_EFI_LIBRARY_INSTANCE,
        TAB_LIBRARY_CLASSES.upper() : MODEL_EFI_LIBRARY_CLASS,
        TAB_PACKAGES.upper() : MODEL_META_DATA_PACKAGE,
        TAB_NMAKE.upper() : MODEL_META_DATA_NMAKE,
        TAB_INF_FIXED_PCD.upper() : MODEL_PCD_FIXED_AT_BUILD,
        TAB_INF_PATCH_PCD.upper() : MODEL_PCD_PATCHABLE_IN_MODULE,
        TAB_INF_FEATURE_PCD.upper() : MODEL_PCD_FEATURE_FLAG,
        TAB_INF_PCD_EX.upper() : MODEL_PCD_DYNAMIC_EX,
        TAB_INF_PCD.upper() : MODEL_PCD_DYNAMIC,
        TAB_SOURCES.upper() : MODEL_EFI_SOURCE_FILE,
        TAB_GUIDS.upper() : MODEL_EFI_GUID,
        TAB_PROTOCOLS.upper() : MODEL_EFI_PROTOCOL,
        TAB_PPIS.upper() : MODEL_EFI_PPI,
        TAB_DEPEX.upper() : MODEL_EFI_DEPEX,
        TAB_BINARIES.upper() : MODEL_EFI_BINARY_FILE,
        TAB_USER_EXTENSIONS.upper() : MODEL_META_DATA_USER_EXTENSION
    }

    ## Constructor of InfParser
    #
    #  Initialize object of InfParser
    #
    #   @param      FilePath        The path of module description file
    #   @param      FileType        The raw data of DSC file
    #   @param      Table           Database used to retrieve module/package information
    #   @param      Macros          Macros used for replacement in file
    #
    def __init__(self, FilePath, FileType, Table):
        # prevent re-initialization
        if hasattr(self, "_Table"):
            return
        MetaFileParser.__init__(self, FilePath, FileType, Table)
        self.TblFile = EccGlobalData.gDb.TblFile
        self.FileID = -1

    ## Parser starter
    def Start(self):
        NmakeLine = ''
        Content = ''
        Usage = ''
        try:
            Content = open(str(self.MetaFile), 'r').readlines()
        except:
            EdkLogger.error("Parser", FILE_READ_FAILURE, ExtraData=self.MetaFile)
        #
        # Insert a record for file
        #
        Filename = NormPath(self.MetaFile)
        FileID = self.TblFile.GetFileId(Filename)
        if FileID:
            self.FileID = FileID
        else:
            self.FileID = self.TblFile.InsertFile(Filename, MODEL_FILE_INF)
            
        # parse the file line by line
        IsFindBlockComment = False

        for Index in range(0, len(Content)):
            if self._SectionType in [MODEL_EFI_GUID,
                                     MODEL_EFI_PROTOCOL,
                                     MODEL_EFI_PPI,
                                     MODEL_PCD_FIXED_AT_BUILD,
                                     MODEL_PCD_PATCHABLE_IN_MODULE,
                                     MODEL_PCD_FEATURE_FLAG,
                                     MODEL_PCD_DYNAMIC_EX,
                                     MODEL_PCD_DYNAMIC]:
                Line = Content[Index].strip()
                if Line.startswith(TAB_SPECIAL_COMMENT):
                    Usage += ' ' + Line[Line.find(TAB_SPECIAL_COMMENT):]
                    continue
                elif Line.startswith(TAB_COMMENT_SPLIT):
                    continue
                elif Line.find(TAB_COMMENT_SPLIT) > 0:
                    Usage += ' ' + Line[Line.find(TAB_COMMENT_SPLIT):]
                    Line = Line[:Line.find(TAB_COMMENT_SPLIT)]
            else:
            # skip empty, commented, block commented lines
                Line = CleanString(Content[Index], AllowCppStyleComment=True)
                Usage = ''
            NextLine = ''
            if Index + 1 < len(Content):
                NextLine = CleanString(Content[Index + 1])
            if Line == '':
                continue
            if Line.find(DataType.TAB_COMMENT_EDK_START) > -1:
                IsFindBlockComment = True
                continue
            if Line.find(DataType.TAB_COMMENT_EDK_END) > -1:
                IsFindBlockComment = False
                continue
            if IsFindBlockComment:
                continue

            self._LineIndex = Index
            self._CurrentLine = Line

            # section header
            if Line[0] == TAB_SECTION_START and Line[-1] == TAB_SECTION_END:
                self._SectionHeaderParser()
                # Check invalid sections
                if self._Version < 0x00010005:
                    if self._SectionType in [MODEL_META_DATA_BUILD_OPTION,
                                             MODEL_EFI_LIBRARY_CLASS,
                                             MODEL_META_DATA_PACKAGE,
                                             MODEL_PCD_FIXED_AT_BUILD,
                                             MODEL_PCD_PATCHABLE_IN_MODULE,
                                             MODEL_PCD_FEATURE_FLAG,
                                             MODEL_PCD_DYNAMIC_EX,
                                             MODEL_PCD_DYNAMIC,
                                             MODEL_EFI_GUID,
                                             MODEL_EFI_PROTOCOL,
                                             MODEL_EFI_PPI,
                                             MODEL_META_DATA_USER_EXTENSION]:
                        EdkLogger.error('Parser', FORMAT_INVALID,
                                        "Section [%s] is not allowed in inf file without version" % (self._SectionName),
                                        ExtraData=self._CurrentLine, File=self.MetaFile, Line=self._LineIndex+1)
                elif self._SectionType in [MODEL_EFI_INCLUDE,
                                           MODEL_EFI_LIBRARY_INSTANCE,
                                           MODEL_META_DATA_NMAKE]:
                    EdkLogger.error('Parser', FORMAT_INVALID,
                                    "Section [%s] is not allowed in inf file with version 0x%08x" % (self._SectionName, self._Version),
                                    ExtraData=self._CurrentLine, File=self.MetaFile, Line=self._LineIndex+1)
                continue
            # merge two lines specified by '\' in section NMAKE
            elif self._SectionType == MODEL_META_DATA_NMAKE:
                if Line[-1] == '\\':
                    if NextLine == '':
                        self._CurrentLine = NmakeLine + Line[0:-1]
                        NmakeLine = ''
                    else:
                        if NextLine[0] == TAB_SECTION_START and NextLine[-1] == TAB_SECTION_END:
                            self._CurrentLine = NmakeLine + Line[0:-1]
                            NmakeLine = ''
                        else:
                            NmakeLine = NmakeLine + ' ' + Line[0:-1]
                            continue
                else:
                    self._CurrentLine = NmakeLine + Line
                    NmakeLine = ''

            # section content
            self._ValueList = ['','','']
            # parse current line, result will be put in self._ValueList
            self._SectionParser[self._SectionType](self)
            if self._ValueList == None or self._ItemType == MODEL_META_DATA_DEFINE:
                self._ItemType = -1
                continue
            #
            # Model, Value1, Value2, Value3, Arch, Platform, BelongsToItem=-1,
            # LineBegin=-1, ColumnBegin=-1, LineEnd=-1, ColumnEnd=-1, Enabled=-1
            #
            self._ValueList[0] = self._ValueList[0].replace('/', '\\')
            Usage = Usage.strip()
            for Arch, Platform in self._Scope:
                self._Store(self._SectionType,
                            self._ValueList[0],
                            self._ValueList[1],
                            self._ValueList[2],
                            Arch,
                            Platform,
                            self._Owner[-1],
                            self.FileID,
                            self._LineIndex+1,
                            -1,
                            self._LineIndex+1,
                            -1,
                            0,
                            Usage
                            )
            Usage = ''
        if IsFindBlockComment:
            EdkLogger.error("Parser", FORMAT_INVALID, "Open block comments (starting with /*) are expected to end with */", 
                            File=self.MetaFile)
        self._Done()

    ## Data parser for the format in which there's path
    #
    #   Only path can have macro used. So we need to replace them before use.
    #
    def _IncludeParser(self):
        TokenList = GetSplitValueList(self._CurrentLine, TAB_VALUE_SPLIT)
        self._ValueList[0:len(TokenList)] = TokenList
        Macros = self._Macros
        if Macros:
            for Index in range(0, len(self._ValueList)):
                Value = self._ValueList[Index]
                if not Value:
                    continue

                if Value.upper().find('$(EFI_SOURCE)\Edk'.upper()) > -1 or Value.upper().find('$(EFI_SOURCE)/Edk'.upper()) > -1:
                    Value = '$(EDK_SOURCE)' + Value[17:]
                if Value.find('$(EFI_SOURCE)') > -1 or Value.find('$(EDK_SOURCE)') > -1:
                    pass
                elif Value.startswith('.'):
                    pass
                elif Value.startswith('$('):
                    pass
                else:
                    Value = '$(EFI_SOURCE)/' + Value

                self._ValueList[Index] = ReplaceMacro(Value, Macros)

    ## Parse [Sources] section
    #
    #   Only path can have macro used. So we need to replace them before use.
    #
    @ParseMacro
    def _SourceFileParser(self):
        TokenList = GetSplitValueList(self._CurrentLine, TAB_VALUE_SPLIT)
        self._ValueList[0:len(TokenList)] = TokenList
        Macros = self._Macros
        # For Acpi tables, remove macro like ' TABLE_NAME=Sata1'
        if 'COMPONENT_TYPE' in Macros:
            if self._Defines['COMPONENT_TYPE'].upper() == 'ACPITABLE':
                self._ValueList[0] = GetSplitValueList(self._ValueList[0], ' ', 1)[0]
        if self._Defines['BASE_NAME'] == 'Microcode':
            pass
        self._ValueList = [ReplaceMacro(Value, Macros) for Value in self._ValueList]

    ## Parse [Binaries] section
    #
    #   Only path can have macro used. So we need to replace them before use.
    #
    @ParseMacro
    def _BinaryFileParser(self):
        TokenList = GetSplitValueList(self._CurrentLine, TAB_VALUE_SPLIT, 2)
        if len(TokenList) < 2:
            EdkLogger.error('Parser', FORMAT_INVALID, "No file type or path specified",
                            ExtraData=self._CurrentLine + " (<FileType> | <FilePath> [| <Target>])",
                            File=self.MetaFile, Line=self._LineIndex+1)
        if not TokenList[0]:
            EdkLogger.error('Parser', FORMAT_INVALID, "No file type specified",
                            ExtraData=self._CurrentLine + " (<FileType> | <FilePath> [| <Target>])",
                            File=self.MetaFile, Line=self._LineIndex+1)
        if not TokenList[1]:
            EdkLogger.error('Parser', FORMAT_INVALID, "No file path specified",
                            ExtraData=self._CurrentLine + " (<FileType> | <FilePath> [| <Target>])",
                            File=self.MetaFile, Line=self._LineIndex+1)
        self._ValueList[0:len(TokenList)] = TokenList
        self._ValueList[1] = ReplaceMacro(self._ValueList[1], self._Macros)

    ## [nmake] section parser (Edk.x style only)
    def _NmakeParser(self):
        TokenList = GetSplitValueList(self._CurrentLine, TAB_EQUAL_SPLIT, 1)
        self._ValueList[0:len(TokenList)] = TokenList
        # remove macros
        self._ValueList[1] = ReplaceMacro(self._ValueList[1], self._Macros)
        # remove self-reference in macro setting
        #self._ValueList[1] = ReplaceMacro(self._ValueList[1], {self._ValueList[0]:''})

    ## [FixedPcd], [FeaturePcd], [PatchPcd], [Pcd] and [PcdEx] sections parser
    @ParseMacro
    def _PcdParser(self):
        TokenList = GetSplitValueList(self._CurrentLine, TAB_VALUE_SPLIT, 1)
        ValueList = GetSplitValueList(TokenList[0], TAB_SPLIT)
        if len(ValueList) != 2:
            EdkLogger.error('Parser', FORMAT_INVALID, "Illegal token space GUID and PCD name format",
                            ExtraData=self._CurrentLine + " (<TokenSpaceGuidCName>.<PcdCName>)",
                            File=self.MetaFile, Line=self._LineIndex+1)
        self._ValueList[0:1] = ValueList
        if len(TokenList) > 1:
            self._ValueList[2] = TokenList[1]
        if self._ValueList[0] == '' or self._ValueList[1] == '':
            EdkLogger.error('Parser', FORMAT_INVALID, "No token space GUID or PCD name specified",
                            ExtraData=self._CurrentLine + " (<TokenSpaceGuidCName>.<PcdCName>)",
                            File=self.MetaFile, Line=self._LineIndex+1)

        # if value are 'True', 'true', 'TRUE' or 'False', 'false', 'FALSE', replace with integer 1 or 0.
        if self._ValueList[2] != '':
            InfPcdValueList = GetSplitValueList(TokenList[1], TAB_VALUE_SPLIT, 1)
            if InfPcdValueList[0] in ['True', 'true', 'TRUE']:
                self._ValueList[2] = TokenList[1].replace(InfPcdValueList[0], '1', 1);
            elif InfPcdValueList[0] in ['False', 'false', 'FALSE']:
                self._ValueList[2] = TokenList[1].replace(InfPcdValueList[0], '0', 1);

    ## [depex] section parser
    @ParseMacro
    def _DepexParser(self):
        self._ValueList[0:1] = [self._CurrentLine]

    _SectionParser = {
        MODEL_UNKNOWN                   :   MetaFileParser._Skip,
        MODEL_META_DATA_HEADER          :   MetaFileParser._DefineParser,
        MODEL_META_DATA_BUILD_OPTION    :   MetaFileParser._BuildOptionParser,
        MODEL_EFI_INCLUDE               :   _IncludeParser,                 # for Edk.x modules
        MODEL_EFI_LIBRARY_INSTANCE      :   MetaFileParser._CommonParser,   # for Edk.x modules
        MODEL_EFI_LIBRARY_CLASS         :   MetaFileParser._PathParser,
        MODEL_META_DATA_PACKAGE         :   MetaFileParser._PathParser,
        MODEL_META_DATA_NMAKE           :   _NmakeParser,                   # for Edk.x modules
        MODEL_PCD_FIXED_AT_BUILD        :   _PcdParser,
        MODEL_PCD_PATCHABLE_IN_MODULE   :   _PcdParser,
        MODEL_PCD_FEATURE_FLAG          :   _PcdParser,
        MODEL_PCD_DYNAMIC_EX            :   _PcdParser,
        MODEL_PCD_DYNAMIC               :   _PcdParser,
        MODEL_EFI_SOURCE_FILE           :   _SourceFileParser,
        MODEL_EFI_GUID                  :   MetaFileParser._CommonParser,
        MODEL_EFI_PROTOCOL              :   MetaFileParser._CommonParser,
        MODEL_EFI_PPI                   :   MetaFileParser._CommonParser,
        MODEL_EFI_DEPEX                 :   _DepexParser,
        MODEL_EFI_BINARY_FILE           :   _BinaryFileParser,
        MODEL_META_DATA_USER_EXTENSION  :   MetaFileParser._Skip,
    }

## DSC file parser class
#
#   @param      FilePath        The path of platform description file
#   @param      FileType        The raw data of DSC file
#   @param      Table           Database used to retrieve module/package information
#   @param      Macros          Macros used for replacement in file
#   @param      Owner           Owner ID (for sub-section parsing)
#   @param      From            ID from which the data comes (for !INCLUDE directive)
#
class DscParser(MetaFileParser):
    # DSC file supported data types (one type per section)
    DataType = {
        TAB_SKUIDS.upper()                          :   MODEL_EFI_SKU_ID,
        TAB_LIBRARIES.upper()                       :   MODEL_EFI_LIBRARY_INSTANCE,
        TAB_LIBRARY_CLASSES.upper()                 :   MODEL_EFI_LIBRARY_CLASS,
        TAB_BUILD_OPTIONS.upper()                   :   MODEL_META_DATA_BUILD_OPTION,
        TAB_PCDS_FIXED_AT_BUILD_NULL.upper()        :   MODEL_PCD_FIXED_AT_BUILD,
        TAB_PCDS_PATCHABLE_IN_MODULE_NULL.upper()   :   MODEL_PCD_PATCHABLE_IN_MODULE,
        TAB_PCDS_FEATURE_FLAG_NULL.upper()          :   MODEL_PCD_FEATURE_FLAG,
        TAB_PCDS_DYNAMIC_DEFAULT_NULL.upper()       :   MODEL_PCD_DYNAMIC_DEFAULT,
        TAB_PCDS_DYNAMIC_HII_NULL.upper()           :   MODEL_PCD_DYNAMIC_HII,
        TAB_PCDS_DYNAMIC_VPD_NULL.upper()           :   MODEL_PCD_DYNAMIC_VPD,
        TAB_PCDS_DYNAMIC_EX_DEFAULT_NULL.upper()    :   MODEL_PCD_DYNAMIC_EX_DEFAULT,
        TAB_PCDS_DYNAMIC_EX_HII_NULL.upper()        :   MODEL_PCD_DYNAMIC_EX_HII,
        TAB_PCDS_DYNAMIC_EX_VPD_NULL.upper()        :   MODEL_PCD_DYNAMIC_EX_VPD,
        TAB_COMPONENTS.upper()                      :   MODEL_META_DATA_COMPONENT,
        TAB_COMPONENTS_SOURCE_OVERRIDE_PATH.upper() :   MODEL_META_DATA_COMPONENT_SOURCE_OVERRIDE_PATH,
        TAB_DSC_DEFINES.upper()                     :   MODEL_META_DATA_HEADER,
        TAB_DSC_DEFINES_DEFINE                      :   MODEL_META_DATA_DEFINE,
        TAB_DSC_DEFINES_EDKGLOBAL                   :   MODEL_META_DATA_GLOBAL_DEFINE,
        TAB_INCLUDE.upper()                         :   MODEL_META_DATA_INCLUDE,
        TAB_IF.upper()                              :   MODEL_META_DATA_CONDITIONAL_STATEMENT_IF,
        TAB_IF_DEF.upper()                          :   MODEL_META_DATA_CONDITIONAL_STATEMENT_IFDEF,
        TAB_IF_N_DEF.upper()                        :   MODEL_META_DATA_CONDITIONAL_STATEMENT_IFNDEF,
        TAB_ELSE_IF.upper()                         :   MODEL_META_DATA_CONDITIONAL_STATEMENT_ELSEIF,
        TAB_ELSE.upper()                            :   MODEL_META_DATA_CONDITIONAL_STATEMENT_ELSE,
        TAB_END_IF.upper()                          :   MODEL_META_DATA_CONDITIONAL_STATEMENT_ENDIF,
        TAB_ERROR.upper()                           :   MODEL_META_DATA_CONDITIONAL_STATEMENT_ERROR,
    }

    # Valid names in define section
    DefineKeywords = [
        "DSC_SPECIFICATION",
        "PLATFORM_NAME",
        "PLATFORM_GUID",
        "PLATFORM_VERSION",
        "SKUID_IDENTIFIER",
        "PCD_INFO_GENERATION",
        "SUPPORTED_ARCHITECTURES",
        "BUILD_TARGETS",
        "OUTPUT_DIRECTORY",
        "FLASH_DEFINITION",
        "BUILD_NUMBER",
        "RFC_LANGUAGES",
        "ISO_LANGUAGES",
        "TIME_STAMP_FILE",
        "VPD_TOOL_GUID",
        "FIX_LOAD_TOP_MEMORY_ADDRESS"
    ]

    SymbolPattern = ValueExpression.SymbolPattern

    ## Constructor of DscParser
    #
    #  Initialize object of DscParser
    #
    #   @param      FilePath        The path of platform description file
    #   @param      FileType        The raw data of DSC file
    #   @param      Table           Database used to retrieve module/package information
    #   @param      Macros          Macros used for replacement in file
    #   @param      Owner           Owner ID (for sub-section parsing)
    #   @param      From            ID from which the data comes (for !INCLUDE directive)
    #
    def __init__(self, FilePath, FileType, Table, Owner=-1, From=-1):
        # prevent re-initialization
        if hasattr(self, "_Table"):
            return
        MetaFileParser.__init__(self, FilePath, FileType, Table, Owner, From)
        self._Version = 0x00010005  # Only EDK2 dsc file is supported
        # to store conditional directive evaluation result
        self._DirectiveStack = []
        self._DirectiveEvalStack = []
        self._Enabled = 1

        # Final valid replacable symbols
        self._Symbols = {}
        #
        #  Map the ID between the original table and new table to track
        #  the owner item
        #
        self._IdMapping = {-1:-1}
        
        self.TblFile = EccGlobalData.gDb.TblFile
        self.FileID = -1

    ## Parser starter
    def Start(self):
        Content = ''
        try:
            Content = open(str(self.MetaFile.Path), 'r').readlines()
        except:
            EdkLogger.error("Parser", FILE_READ_FAILURE, ExtraData=self.MetaFile)
        #
        # Insert a record for file
        #
        Filename = NormPath(self.MetaFile.Path)
        FileID = self.TblFile.GetFileId(Filename)
        if FileID:
            self.FileID = FileID
        else:
            self.FileID = self.TblFile.InsertFile(Filename, MODEL_FILE_DSC)
        
        
        for Index in range(0, len(Content)):
            Line = CleanString(Content[Index])
            # skip empty line
            if Line == '':
                continue

            self._CurrentLine = Line
            self._LineIndex = Index
            if self._InSubsection and self._Owner[-1] == -1:
                self._Owner.append(self._LastItem)
            
            # section header
            if Line[0] == TAB_SECTION_START and Line[-1] == TAB_SECTION_END:
                self._SectionType = MODEL_META_DATA_SECTION_HEADER
            # subsection ending
            elif Line[0] == '}' and self._InSubsection:
                self._InSubsection = False
                self._SubsectionType = MODEL_UNKNOWN
                self._SubsectionName = ''
                self._Owner[-1] = -1
                continue
            # subsection header
            elif Line[0] == TAB_OPTION_START and Line[-1] == TAB_OPTION_END:
                self._SubsectionType = MODEL_META_DATA_SUBSECTION_HEADER
            # directive line
            elif Line[0] == '!':
                self._DirectiveParser()
                continue

            if self._InSubsection:
                SectionType = self._SubsectionType
            else:
                SectionType = self._SectionType
            self._ItemType = SectionType

            self._ValueList = ['', '', '']
            self._SectionParser[SectionType](self)
            if self._ValueList == None:
                continue
            #
            # Model, Value1, Value2, Value3, Arch, ModuleType, BelongsToItem=-1, BelongsToFile=-1,
            # LineBegin=-1, ColumnBegin=-1, LineEnd=-1, ColumnEnd=-1, Enabled=-1
            #
            for Arch, ModuleType in self._Scope:
                self._LastItem = self._Store(
                                        self._ItemType,
                                        self._ValueList[0],
                                        self._ValueList[1],
                                        self._ValueList[2],
                                        Arch,
                                        ModuleType,
                                        self._Owner[-1],
                                        self.FileID,
                                        self._From,
                                        self._LineIndex+1,
                                        -1,
                                        self._LineIndex+1,
                                        -1,
                                        self._Enabled
                                        )

        if self._DirectiveStack:
            Type, Line, Text = self._DirectiveStack[-1]
            EdkLogger.error('Parser', FORMAT_INVALID, "No matching '!endif' found",
                            ExtraData=Text, File=self.MetaFile, Line=Line)
        self._Done()

    ## <subsection_header> parser
    def _SubsectionHeaderParser(self):
        self._SubsectionName = self._CurrentLine[1:-1].upper()
        if self._SubsectionName in self.DataType:
            self._SubsectionType = self.DataType[self._SubsectionName]
        else:
            self._SubsectionType = MODEL_UNKNOWN
            EdkLogger.warn("Parser", "Unrecognized sub-section", File=self.MetaFile,
                           Line=self._LineIndex+1, ExtraData=self._CurrentLine)
        self._ValueList[0] = self._SubsectionName

    ## Directive statement parser
    def _DirectiveParser(self):
        self._ValueList = ['','','']
        TokenList = GetSplitValueList(self._CurrentLine, ' ', 1)
        self._ValueList[0:len(TokenList)] = TokenList

        # Syntax check
        DirectiveName = self._ValueList[0].upper()
        if DirectiveName not in self.DataType:
            EdkLogger.error("Parser", FORMAT_INVALID, "Unknown directive [%s]" % DirectiveName,
                            File=self.MetaFile, Line=self._LineIndex+1)
        if DirectiveName in ['!IF', '!IFDEF', '!INCLUDE', '!IFNDEF', '!ELSEIF'] and self._ValueList[1] == '':
            EdkLogger.error("Parser", FORMAT_INVALID, "Missing expression",
                            File=self.MetaFile, Line=self._LineIndex+1,
                            ExtraData=self._CurrentLine)

        ItemType = self.DataType[DirectiveName]
        if ItemType == MODEL_META_DATA_CONDITIONAL_STATEMENT_ENDIF:
            # Remove all directives between !if and !endif, including themselves
            while self._DirectiveStack:
                # Remove any !else or !elseif
                DirectiveInfo = self._DirectiveStack.pop()
                if DirectiveInfo[0] in [MODEL_META_DATA_CONDITIONAL_STATEMENT_IF,
                                        MODEL_META_DATA_CONDITIONAL_STATEMENT_IFDEF,
                                        MODEL_META_DATA_CONDITIONAL_STATEMENT_IFNDEF]:
                    break
            else:
                EdkLogger.error("Parser", FORMAT_INVALID, "Redundant '!endif'",
                                File=self.MetaFile, Line=self._LineIndex+1,
                                ExtraData=self._CurrentLine)
        elif ItemType != MODEL_META_DATA_INCLUDE:
            # Break if there's a !else is followed by a !elseif
            if ItemType == MODEL_META_DATA_CONDITIONAL_STATEMENT_ELSEIF and \
               self._DirectiveStack and \
               self._DirectiveStack[-1][0] == MODEL_META_DATA_CONDITIONAL_STATEMENT_ELSE:
                EdkLogger.error("Parser", FORMAT_INVALID, "'!elseif' after '!else'",
                                File=self.MetaFile, Line=self._LineIndex+1,
                                ExtraData=self._CurrentLine)
            self._DirectiveStack.append((ItemType, self._LineIndex+1, self._CurrentLine))
        elif self._From > 0:
            EdkLogger.error('Parser', FORMAT_INVALID,
                            "No '!include' allowed in included file",
                            ExtraData=self._CurrentLine, File=self.MetaFile, 
                            Line=self._LineIndex+1)

        #
        # Model, Value1, Value2, Value3, Arch, ModuleType, BelongsToItem=-1, BelongsToFile=-1,
        # LineBegin=-1, ColumnBegin=-1, LineEnd=-1, ColumnEnd=-1, Enabled=-1
        #
        self._LastItem = self._Store(
                                ItemType,
                                self._ValueList[0],
                                self._ValueList[1],
                                self._ValueList[2],
                                'COMMON',
                                'COMMON',
                                self._Owner[-1],
                                self.FileID,
                                self._From,
                                self._LineIndex+1,
                                -1,
                                self._LineIndex+1,
                                -1,
                                0
                                )

    ## [defines] section parser
    @ParseMacro
    def _DefineParser(self):
        TokenList = GetSplitValueList(self._CurrentLine, TAB_EQUAL_SPLIT, 1)
        self._ValueList[1:len(TokenList)] = TokenList

        # Syntax check
        if not self._ValueList[1]:
            EdkLogger.error('Parser', FORMAT_INVALID, "No name specified",
                            ExtraData=self._CurrentLine, File=self.MetaFile, Line=self._LineIndex+1)
        if not self._ValueList[2]:
            EdkLogger.error('Parser', FORMAT_INVALID, "No value specified",
                            ExtraData=self._CurrentLine, File=self.MetaFile, Line=self._LineIndex+1)
        if not self._ValueList[1] in self.DefineKeywords:
            EdkLogger.error('Parser', FORMAT_INVALID,
                            "Unknown keyword found: %s. "
                            "If this is a macro you must "
                            "add it as a DEFINE in the DSC" % self._ValueList[1],
                            ExtraData=self._CurrentLine, File=self.MetaFile, Line=self._LineIndex+1)
        self._Defines[self._ValueList[1]] = self._ValueList[2]
        self._ItemType = self.DataType[TAB_DSC_DEFINES.upper()]

    @ParseMacro
    def _SkuIdParser(self):
        TokenList = GetSplitValueList(self._CurrentLine, TAB_VALUE_SPLIT)
        if len(TokenList) != 2:
            EdkLogger.error('Parser', FORMAT_INVALID, "Correct format is '<Integer>|<UiName>'",
                            ExtraData=self._CurrentLine, File=self.MetaFile, Line=self._LineIndex+1)
        self._ValueList[0:len(TokenList)] = TokenList

    ## Parse Edk style of library modules
    def _LibraryInstanceParser(self):
        self._ValueList[0] = self._CurrentLine

    ## PCD sections parser
    #
    #   [PcdsFixedAtBuild]
    #   [PcdsPatchableInModule]
    #   [PcdsFeatureFlag]
    #   [PcdsDynamicEx
    #   [PcdsDynamicExDefault]
    #   [PcdsDynamicExVpd]
    #   [PcdsDynamicExHii]
    #   [PcdsDynamic]
    #   [PcdsDynamicDefault]
    #   [PcdsDynamicVpd]
    #   [PcdsDynamicHii]
    #
    @ParseMacro
    def _PcdParser(self):
        TokenList = GetSplitValueList(self._CurrentLine, TAB_VALUE_SPLIT, 1)
        self._ValueList[0:1] = GetSplitValueList(TokenList[0], TAB_SPLIT)
        if len(TokenList) == 2:
            self._ValueList[2] = TokenList[1]
        if self._ValueList[0] == '' or self._ValueList[1] == '':
            EdkLogger.error('Parser', FORMAT_INVALID, "No token space GUID or PCD name specified",
                            ExtraData=self._CurrentLine + " (<TokenSpaceGuidCName>.<TokenCName>|<PcdValue>)",
                            File=self.MetaFile, Line=self._LineIndex+1)
        if self._ValueList[2] == '':
            EdkLogger.error('Parser', FORMAT_INVALID, "No PCD value given",
                            ExtraData=self._CurrentLine + " (<TokenSpaceGuidCName>.<TokenCName>|<PcdValue>)",
                            File=self.MetaFile, Line=self._LineIndex+1)
        # if value are 'True', 'true', 'TRUE' or 'False', 'false', 'FALSE', replace with integer 1 or 0.
        DscPcdValueList = GetSplitValueList(TokenList[1], TAB_VALUE_SPLIT, 1)
        if DscPcdValueList[0] in ['True', 'true', 'TRUE']:
            self._ValueList[2] = TokenList[1].replace(DscPcdValueList[0], '1', 1);
        elif DscPcdValueList[0] in ['False', 'false', 'FALSE']:
            self._ValueList[2] = TokenList[1].replace(DscPcdValueList[0], '0', 1);

    ## [components] section parser
    @ParseMacro
    def _ComponentParser(self):
        if self._CurrentLine[-1] == '{':
            self._ValueList[0] = self._CurrentLine[0:-1].strip()
            self._InSubsection = True
        else:
            self._ValueList[0] = self._CurrentLine

    ## [LibraryClasses] section
    @ParseMacro
    def _LibraryClassParser(self):
        TokenList = GetSplitValueList(self._CurrentLine, TAB_VALUE_SPLIT)
        if len(TokenList) < 2:
            EdkLogger.error('Parser', FORMAT_INVALID, "No library class or instance specified",
                            ExtraData=self._CurrentLine + " (<LibraryClassName>|<LibraryInstancePath>)",
                            File=self.MetaFile, Line=self._LineIndex+1)
        if TokenList[0] == '':
            EdkLogger.error('Parser', FORMAT_INVALID, "No library class specified",
                            ExtraData=self._CurrentLine + " (<LibraryClassName>|<LibraryInstancePath>)",
                            File=self.MetaFile, Line=self._LineIndex+1)
        if TokenList[1] == '':
            EdkLogger.error('Parser', FORMAT_INVALID, "No library instance specified",
                            ExtraData=self._CurrentLine + " (<LibraryClassName>|<LibraryInstancePath>)",
                            File=self.MetaFile, Line=self._LineIndex+1)

        self._ValueList[0:len(TokenList)] = TokenList

    def _CompponentSourceOverridePathParser(self):
        self._ValueList[0] = self._CurrentLine

    ## [BuildOptions] section parser
    @ParseMacro
    def _BuildOptionParser(self):
        TokenList = GetSplitValueList(self._CurrentLine, TAB_EQUAL_SPLIT, 1)
        TokenList2 = GetSplitValueList(TokenList[0], ':', 1)
        if len(TokenList2) == 2:
            self._ValueList[0] = TokenList2[0]  # toolchain family
            self._ValueList[1] = TokenList2[1]  # keys
        else:
            self._ValueList[1] = TokenList[0]
        if len(TokenList) == 2:                 # value
            self._ValueList[2] = TokenList[1]

        if self._ValueList[1].count('_') != 4:
            EdkLogger.error(
                'Parser',
                FORMAT_INVALID,
                "'%s' must be in format of <TARGET>_<TOOLCHAIN>_<ARCH>_<TOOL>_FLAGS" % self._ValueList[1],
                ExtraData=self._CurrentLine,
                File=self.MetaFile,
                Line=self._LineIndex+1
                )

    ## Override parent's method since we'll do all macro replacements in parser
    def _GetMacros(self):
        Macros = dict( [('ARCH','IA32'), ('FAMILY','MSFT'),('TOOL_CHAIN_TAG','VS2008x86'),('TARGET','DEBUG')])
        Macros.update(self._FileLocalMacros)
        Macros.update(self._GetApplicableSectionMacro())
        Macros.update(GlobalData.gEdkGlobal)
        Macros.update(GlobalData.gPlatformDefines)
        Macros.update(GlobalData.gCommandLineDefines)
        # PCD cannot be referenced in macro definition
        if self._ItemType not in [MODEL_META_DATA_DEFINE, MODEL_META_DATA_GLOBAL_DEFINE]:
            Macros.update(self._Symbols)
        return Macros

    def _PostProcess(self):
        Processer = {
            MODEL_META_DATA_SECTION_HEADER                  :   self.__ProcessSectionHeader,
            MODEL_META_DATA_SUBSECTION_HEADER               :   self.__ProcessSubsectionHeader,
            MODEL_META_DATA_HEADER                          :   self.__ProcessDefine,
            MODEL_META_DATA_DEFINE                          :   self.__ProcessDefine,
            MODEL_META_DATA_GLOBAL_DEFINE                   :   self.__ProcessDefine,
            MODEL_META_DATA_INCLUDE                         :   self.__ProcessDirective,
            MODEL_META_DATA_CONDITIONAL_STATEMENT_IF        :   self.__ProcessDirective,
            MODEL_META_DATA_CONDITIONAL_STATEMENT_ELSE      :   self.__ProcessDirective,
            MODEL_META_DATA_CONDITIONAL_STATEMENT_IFDEF     :   self.__ProcessDirective,
            MODEL_META_DATA_CONDITIONAL_STATEMENT_IFNDEF    :   self.__ProcessDirective,
            MODEL_META_DATA_CONDITIONAL_STATEMENT_ENDIF     :   self.__ProcessDirective,
            MODEL_META_DATA_CONDITIONAL_STATEMENT_ELSEIF    :   self.__ProcessDirective,
            MODEL_EFI_SKU_ID                                :   self.__ProcessSkuId,
            MODEL_EFI_LIBRARY_INSTANCE                      :   self.__ProcessLibraryInstance,
            MODEL_EFI_LIBRARY_CLASS                         :   self.__ProcessLibraryClass,
            MODEL_PCD_FIXED_AT_BUILD                        :   self.__ProcessPcd,
            MODEL_PCD_PATCHABLE_IN_MODULE                   :   self.__ProcessPcd,
            MODEL_PCD_FEATURE_FLAG                          :   self.__ProcessPcd,
            MODEL_PCD_DYNAMIC_DEFAULT                       :   self.__ProcessPcd,
            MODEL_PCD_DYNAMIC_HII                           :   self.__ProcessPcd,
            MODEL_PCD_DYNAMIC_VPD                           :   self.__ProcessPcd,
            MODEL_PCD_DYNAMIC_EX_DEFAULT                    :   self.__ProcessPcd,
            MODEL_PCD_DYNAMIC_EX_HII                        :   self.__ProcessPcd,
            MODEL_PCD_DYNAMIC_EX_VPD                        :   self.__ProcessPcd,
            MODEL_META_DATA_COMPONENT                       :   self.__ProcessComponent,
            MODEL_META_DATA_COMPONENT_SOURCE_OVERRIDE_PATH  :   self.__ProcessSourceOverridePath,
            MODEL_META_DATA_BUILD_OPTION                    :   self.__ProcessBuildOption,
            MODEL_UNKNOWN                                   :   self._Skip,
            MODEL_META_DATA_USER_EXTENSION                  :   self._Skip,
            MODEL_META_DATA_CONDITIONAL_STATEMENT_ERROR     :   self._Skip,
        }
        
        self._RawTable = self._Table
        self._Table = MetaFileStorage(self._RawTable.Cur, self.MetaFile, MODEL_FILE_DSC, True)
        self._DirectiveStack = []
        self._DirectiveEvalStack = []
        self._FileWithError = self.MetaFile
        self._FileLocalMacros = {}
        self._SectionsMacroDict = {}
        GlobalData.gPlatformDefines = {}

        # Get all macro and PCD which has straitforward value
        self.__RetrievePcdValue()
        self._Content = self._RawTable.GetAll()
        self._ContentIndex = 0
        while self._ContentIndex < len(self._Content) :
            Id, self._ItemType, V1, V2, V3, S1, S2, Owner, BelongsToFile, self._From, \
                LineStart, ColStart, LineEnd, ColEnd, Enabled = self._Content[self._ContentIndex]

            if self._From < 0:
                self._FileWithError = self.MetaFile

            self._ContentIndex += 1

            self._Scope = [[S1, S2]]
            self._LineIndex = LineStart - 1
            self._ValueList = [V1, V2, V3]

            try:
                Processer[self._ItemType]()
            except EvaluationException, Excpt:
                # 
                # Only catch expression evaluation error here. We need to report
                # the precise number of line on which the error occurred
                #
                pass
#                 EdkLogger.error('Parser', FORMAT_INVALID, "Invalid expression: %s" % str(Excpt),
#                                 File=self._FileWithError, ExtraData=' '.join(self._ValueList),
#                                 Line=self._LineIndex+1)
            except MacroException, Excpt:
                EdkLogger.error('Parser', FORMAT_INVALID, str(Excpt),
                                File=self._FileWithError, ExtraData=' '.join(self._ValueList), 
                                Line=self._LineIndex+1)

            if self._ValueList == None:
                continue 

            NewOwner = self._IdMapping.get(Owner, -1)
            self._Enabled = int((not self._DirectiveEvalStack) or (False not in self._DirectiveEvalStack))
            self._LastItem = self._Store(
                                self._ItemType,
                                self._ValueList[0],
                                self._ValueList[1],
                                self._ValueList[2],
                                S1,
                                S2,
                                NewOwner,
                                BelongsToFile,
                                self._From,
                                self._LineIndex+1,
                                -1,
                                self._LineIndex+1,
                                -1,
                                self._Enabled
                                )
            self._IdMapping[Id] = self._LastItem

        RecordList = self._Table.GetAll()
        
        self._RawTable.Drop()
        self._Table.Drop()
        for Record in RecordList:
            EccGlobalData.gDb.TblDsc.Insert(Record[1],Record[2],Record[3],Record[4],Record[5],Record[6],Record[7],Record[8],Record[9],Record[10],Record[11],Record[12],Record[13],Record[14])
        GlobalData.gPlatformDefines.update(self._FileLocalMacros)
        self._PostProcessed = True
        self._Content = None

    def __ProcessSectionHeader(self):
        self._SectionName = self._ValueList[0]
        if self._SectionName in self.DataType:
            self._SectionType = self.DataType[self._SectionName]
        else:
            self._SectionType = MODEL_UNKNOWN

    def __ProcessSubsectionHeader(self):
        self._SubsectionName = self._ValueList[0]
        if self._SubsectionName in self.DataType:
            self._SubsectionType = self.DataType[self._SubsectionName]
        else:
            self._SubsectionType = MODEL_UNKNOWN

    def __RetrievePcdValue(self):
        Records = self._RawTable.Query(MODEL_PCD_FEATURE_FLAG, BelongsToItem=-1.0)
        for TokenSpaceGuid,PcdName,Value,Dummy2,Dummy3,ID,Line in Records:
            Value, DatumType, MaxDatumSize = AnalyzePcdData(Value)
            # Only use PCD whose value is straitforward (no macro and PCD)
            if self.SymbolPattern.findall(Value):
                continue
            Name = TokenSpaceGuid + '.' + PcdName
            # Don't use PCD with different values.
            if Name in self._Symbols and self._Symbols[Name] != Value:
                self._Symbols.pop(Name)
                continue 
            self._Symbols[Name] = Value

        Records = self._RawTable.Query(MODEL_PCD_FIXED_AT_BUILD, BelongsToItem=-1.0)
        for TokenSpaceGuid,PcdName,Value,Dummy2,Dummy3,ID,Line in Records:
            Value, DatumType, MaxDatumSize = AnalyzePcdData(Value)
            # Only use PCD whose value is straitforward (no macro and PCD)
            if self.SymbolPattern.findall(Value):
                continue 
            Name = TokenSpaceGuid+'.'+PcdName
            # Don't use PCD with different values.
            if Name in self._Symbols and self._Symbols[Name] != Value:
                self._Symbols.pop(Name)
                continue 
            self._Symbols[Name] = Value

    def __ProcessDefine(self):
        if not self._Enabled:
            return

        Type, Name, Value = self._ValueList
        Value = ReplaceMacro(Value, self._Macros, False)
        if self._ItemType == MODEL_META_DATA_DEFINE:
            if self._SectionType == MODEL_META_DATA_HEADER:
                self._FileLocalMacros[Name] = Value
            else:
                SectionDictKey = self._SectionType, self._Scope[0][0], self._Scope[0][1]
                if SectionDictKey not in self._SectionsMacroDict:
                    self._SectionsMacroDict[SectionDictKey] = {}
                SectionLocalMacros = self._SectionsMacroDict[SectionDictKey]
                SectionLocalMacros[Name] = Value
        elif self._ItemType == MODEL_META_DATA_GLOBAL_DEFINE:
            GlobalData.gEdkGlobal[Name] = Value
        
        #
        # Keyword in [Defines] section can be used as Macros
        #
        if (self._ItemType == MODEL_META_DATA_HEADER) and (self._SectionType == MODEL_META_DATA_HEADER):
            self._FileLocalMacros[Name] = Value
            
        self._ValueList = [Type, Name, Value]

    def __ProcessDirective(self):
        Result = None
        if self._ItemType in [MODEL_META_DATA_CONDITIONAL_STATEMENT_IF,
                              MODEL_META_DATA_CONDITIONAL_STATEMENT_ELSEIF]:
            Macros = self._Macros
            Macros.update(GlobalData.gGlobalDefines)
            try:
                Result = ValueExpression(self._ValueList[1], Macros)()
            except SymbolNotFound, Exc:
                EdkLogger.debug(EdkLogger.DEBUG_5, str(Exc), self._ValueList[1])
                Result = False
            except WrnExpression, Excpt:
                # 
                # Catch expression evaluation warning here. We need to report
                # the precise number of line and return the evaluation result
                #
                EdkLogger.warn('Parser', "Suspicious expression: %s" % str(Excpt),
                                File=self._FileWithError, ExtraData=' '.join(self._ValueList), 
                                Line=self._LineIndex+1)
                Result = Excpt.result
            except BadExpression, Exc:
                EdkLogger.debug(EdkLogger.DEBUG_5, str(Exc), self._ValueList[1])
                Result = False

        if self._ItemType in [MODEL_META_DATA_CONDITIONAL_STATEMENT_IF,
                              MODEL_META_DATA_CONDITIONAL_STATEMENT_IFDEF,
                              MODEL_META_DATA_CONDITIONAL_STATEMENT_IFNDEF]:
            self._DirectiveStack.append(self._ItemType)
            if self._ItemType == MODEL_META_DATA_CONDITIONAL_STATEMENT_IF:
                Result = bool(Result)
            else:
                Macro = self._ValueList[1]
                Macro = Macro[2:-1] if (Macro.startswith("$(") and Macro.endswith(")")) else Macro
                Result = Macro in self._Macros
                if self._ItemType == MODEL_META_DATA_CONDITIONAL_STATEMENT_IFNDEF:
                    Result = not Result
            self._DirectiveEvalStack.append(Result)
        elif self._ItemType == MODEL_META_DATA_CONDITIONAL_STATEMENT_ELSEIF:
            self._DirectiveStack.append(self._ItemType)
            self._DirectiveEvalStack[-1] = not self._DirectiveEvalStack[-1]
            self._DirectiveEvalStack.append(bool(Result))
        elif self._ItemType == MODEL_META_DATA_CONDITIONAL_STATEMENT_ELSE:
            self._DirectiveStack[-1] = self._ItemType
            self._DirectiveEvalStack[-1] = not self._DirectiveEvalStack[-1]
        elif self._ItemType == MODEL_META_DATA_CONDITIONAL_STATEMENT_ENDIF:
            # Back to the nearest !if/!ifdef/!ifndef
            while self._DirectiveStack:
                self._DirectiveEvalStack.pop()
                Directive = self._DirectiveStack.pop()
                if Directive in [MODEL_META_DATA_CONDITIONAL_STATEMENT_IF,
                                 MODEL_META_DATA_CONDITIONAL_STATEMENT_IFDEF,
                                 MODEL_META_DATA_CONDITIONAL_STATEMENT_ELSE,
                                 MODEL_META_DATA_CONDITIONAL_STATEMENT_IFNDEF]:
                    break
        elif self._ItemType == MODEL_META_DATA_INCLUDE:
            # The included file must be relative to workspace or same directory as DSC file
            __IncludeMacros = {}
            #
            # Allow using system environment variables  in path after !include
            #
            __IncludeMacros['WORKSPACE'] = GlobalData.gGlobalDefines['WORKSPACE']
            if "ECP_SOURCE" in GlobalData.gGlobalDefines.keys():
                __IncludeMacros['ECP_SOURCE'] = GlobalData.gGlobalDefines['ECP_SOURCE']
            #
            # During GenFds phase call DSC parser, will go into this branch.
            #
            elif "ECP_SOURCE" in GlobalData.gCommandLineDefines.keys():
                __IncludeMacros['ECP_SOURCE'] = GlobalData.gCommandLineDefines['ECP_SOURCE']
                
            __IncludeMacros['EFI_SOURCE'] = GlobalData.gGlobalDefines['EFI_SOURCE']
            __IncludeMacros['EDK_SOURCE'] = GlobalData.gGlobalDefines['EDK_SOURCE']
            #
            # Allow using MACROs comes from [Defines] section to keep compatible. 
            #
            __IncludeMacros.update(self._Macros)
            
            IncludedFile = NormPath(ReplaceMacro(self._ValueList[1], __IncludeMacros, RaiseError=True))
            #
            # First search the include file under the same directory as DSC file
            #
            IncludedFile1 = PathClass(IncludedFile, self.MetaFile.Dir)
            ErrorCode, ErrorInfo1 = IncludedFile1.Validate()
            if ErrorCode != 0:
                #
                # Also search file under the WORKSPACE directory
                #
                IncludedFile1 = PathClass(IncludedFile, GlobalData.gWorkspace)
                ErrorCode, ErrorInfo2 = IncludedFile1.Validate()
                if ErrorCode != 0:
                    EdkLogger.error('parser', ErrorCode, File=self._FileWithError, 
                                    Line=self._LineIndex+1, ExtraData=ErrorInfo1 + "\n"+ ErrorInfo2)

            self._FileWithError = IncludedFile1

            IncludedFileTable = MetaFileStorage(self._Table.Cur, IncludedFile1, MODEL_FILE_DSC, True)
            Owner = self._Content[self._ContentIndex-1][0]
            Parser = DscParser(IncludedFile1, self._FileType, IncludedFileTable, 
                               Owner=Owner, From=Owner)

            # set the parser status with current status
            Parser._SectionName = self._SectionName
            Parser._SectionType = self._SectionType
            Parser._Scope = self._Scope
            Parser._Enabled = self._Enabled
            # Parse the included file
            Parser.Start()

            # update current status with sub-parser's status
            self._SectionName = Parser._SectionName
            self._SectionType = Parser._SectionType
            self._Scope       = Parser._Scope
            self._Enabled     = Parser._Enabled

            # Insert all records in the table for the included file into dsc file table
            Records = IncludedFileTable.GetAll()
            if Records:
                self._Content[self._ContentIndex:self._ContentIndex] = Records
                self._Content.pop(self._ContentIndex-1)
                self._ValueList = None
                self._ContentIndex -= 1
                
    def __ProcessSkuId(self):
        self._ValueList = [ReplaceMacro(Value, self._Macros, RaiseError=True)
                           for Value in self._ValueList]

    def __ProcessLibraryInstance(self):
        self._ValueList = [ReplaceMacro(Value, self._Macros) for Value in self._ValueList]

    def __ProcessLibraryClass(self):
        self._ValueList[1] = ReplaceMacro(self._ValueList[1], self._Macros, RaiseError=True)

    def __ProcessPcd(self):
        ValueList = GetSplitValueList(self._ValueList[2])
        #
        # PCD value can be an expression
        #
        if len(ValueList) > 1 and ValueList[1] == 'VOID*':
            PcdValue = ValueList[0]      
            try:
                ValueList[0] = ValueExpression(PcdValue, self._Macros)(True)
            except WrnExpression, Value:
                ValueList[0] = Value.result          
        else:
            PcdValue = ValueList[-1]
            try:
                ValueList[-1] = ValueExpression(PcdValue, self._Macros)(True)
            except WrnExpression, Value:
                ValueList[-1] = Value.result
            
            if ValueList[-1] == 'True':
                ValueList[-1] = '1'
            if ValueList[-1] == 'False':
                ValueList[-1] = '0'      

        self._ValueList[2] = '|'.join(ValueList)

    def __ProcessComponent(self):
        self._ValueList[0] = ReplaceMacro(self._ValueList[0], self._Macros)

    def __ProcessSourceOverridePath(self):
        self._ValueList[0] = ReplaceMacro(self._ValueList[0], self._Macros)

    def __ProcessBuildOption(self):
        self._ValueList = [ReplaceMacro(Value, self._Macros, RaiseError=False)
                           for Value in self._ValueList]

    _SectionParser = {
        MODEL_META_DATA_HEADER                          :   _DefineParser,
        MODEL_EFI_SKU_ID                                :   _SkuIdParser,
        MODEL_EFI_LIBRARY_INSTANCE                      :   _LibraryInstanceParser,
        MODEL_EFI_LIBRARY_CLASS                         :   _LibraryClassParser,
        MODEL_PCD_FIXED_AT_BUILD                        :   _PcdParser,
        MODEL_PCD_PATCHABLE_IN_MODULE                   :   _PcdParser,
        MODEL_PCD_FEATURE_FLAG                          :   _PcdParser,
        MODEL_PCD_DYNAMIC_DEFAULT                       :   _PcdParser,
        MODEL_PCD_DYNAMIC_HII                           :   _PcdParser,
        MODEL_PCD_DYNAMIC_VPD                           :   _PcdParser,
        MODEL_PCD_DYNAMIC_EX_DEFAULT                    :   _PcdParser,
        MODEL_PCD_DYNAMIC_EX_HII                        :   _PcdParser,
        MODEL_PCD_DYNAMIC_EX_VPD                        :   _PcdParser,
        MODEL_META_DATA_COMPONENT                       :   _ComponentParser,
        MODEL_META_DATA_COMPONENT_SOURCE_OVERRIDE_PATH  :   _CompponentSourceOverridePathParser,
        MODEL_META_DATA_BUILD_OPTION                    :   _BuildOptionParser,
        MODEL_UNKNOWN                                   :   MetaFileParser._Skip,
        MODEL_META_DATA_USER_EXTENSION                  :   MetaFileParser._Skip,
        MODEL_META_DATA_SECTION_HEADER                  :   MetaFileParser._SectionHeaderParser,
        MODEL_META_DATA_SUBSECTION_HEADER               :   _SubsectionHeaderParser,
    }

    _Macros     = property(_GetMacros)

## DEC file parser class
#
#   @param      FilePath        The path of platform description file
#   @param      FileType        The raw data of DSC file
#   @param      Table           Database used to retrieve module/package information
#   @param      Macros          Macros used for replacement in file
#
class DecParser(MetaFileParser):
    # DEC file supported data types (one type per section)
    DataType = {
        TAB_DEC_DEFINES.upper()                     :   MODEL_META_DATA_HEADER,
        TAB_DSC_DEFINES_DEFINE                      :   MODEL_META_DATA_DEFINE,
        TAB_INCLUDES.upper()                        :   MODEL_EFI_INCLUDE,
        TAB_LIBRARY_CLASSES.upper()                 :   MODEL_EFI_LIBRARY_CLASS,
        TAB_GUIDS.upper()                           :   MODEL_EFI_GUID,
        TAB_PPIS.upper()                            :   MODEL_EFI_PPI,
        TAB_PROTOCOLS.upper()                       :   MODEL_EFI_PROTOCOL,
        TAB_PCDS_FIXED_AT_BUILD_NULL.upper()        :   MODEL_PCD_FIXED_AT_BUILD,
        TAB_PCDS_PATCHABLE_IN_MODULE_NULL.upper()   :   MODEL_PCD_PATCHABLE_IN_MODULE,
        TAB_PCDS_FEATURE_FLAG_NULL.upper()          :   MODEL_PCD_FEATURE_FLAG,
        TAB_PCDS_DYNAMIC_NULL.upper()               :   MODEL_PCD_DYNAMIC,
        TAB_PCDS_DYNAMIC_EX_NULL.upper()            :   MODEL_PCD_DYNAMIC_EX,
    }

    ## Constructor of DecParser
    #
    #  Initialize object of DecParser
    #
    #   @param      FilePath        The path of platform description file
    #   @param      FileType        The raw data of DSC file
    #   @param      Table           Database used to retrieve module/package information
    #   @param      Macros          Macros used for replacement in file
    #
    def __init__(self, FilePath, FileType, Table):
        # prevent re-initialization
        if hasattr(self, "_Table"):
            return
        MetaFileParser.__init__(self, FilePath, FileType, Table)
        self._Comments = []
        self._Version = 0x00010005  # Only EDK2 dec file is supported
        self.TblFile = EccGlobalData.gDb.TblFile
        self.FileID = -1

    ## Parser starter
    def Start(self):
        Content = ''
        try:
            Content = open(str(self.MetaFile), 'r').readlines()
        except:
            EdkLogger.error("Parser", FILE_READ_FAILURE, ExtraData=self.MetaFile)

        #
        # Insert a record for file
        #
        Filename = NormPath(self.MetaFile)
        FileID = self.TblFile.GetFileId(Filename)
        if FileID:
            self.FileID = FileID
        else:
            self.FileID = self.TblFile.InsertFile(Filename, MODEL_FILE_DEC)
        
        for Index in range(0, len(Content)):
            Line, Comment = CleanString2(Content[Index])
            self._CurrentLine = Line
            self._LineIndex = Index

            # save comment for later use
            if Comment:
                self._Comments.append((Comment, self._LineIndex+1))
            # skip empty line
            if Line == '':
                continue

            # section header
            if Line[0] == TAB_SECTION_START and Line[-1] == TAB_SECTION_END:
                self._SectionHeaderParser()
                self._Comments = []
                continue
            elif len(self._SectionType) == 0:
                self._Comments = []
                continue

            # section content
            self._ValueList = ['','','']
            self._SectionParser[self._SectionType[0]](self)
            if self._ValueList == None or self._ItemType == MODEL_META_DATA_DEFINE:
                self._ItemType = -1
                self._Comments = []
                continue

            #
            # Model, Value1, Value2, Value3, Arch, BelongsToItem=-1, LineBegin=-1,
            # ColumnBegin=-1, LineEnd=-1, ColumnEnd=-1, FeatureFlag='', Enabled=-1
            #
            for Arch, ModuleType, Type in self._Scope:
                self._LastItem = self._Store(
                    Type,
                    self._ValueList[0],
                    self._ValueList[1],
                    self._ValueList[2],
                    Arch,
                    ModuleType,
                    self._Owner[-1],
                    self.FileID,
                    self._LineIndex+1,
                    -1,
                    self._LineIndex+1,
                    -1,
                    0
                    )
                for Comment, LineNo in self._Comments:
                    self._Store(
                        MODEL_META_DATA_COMMENT,
                        Comment,
                        self._ValueList[0],
                        self._ValueList[1],
                        Arch,
                        ModuleType,
                        self._LastItem,
                        self.FileID,
                        LineNo,
                        -1,
                        LineNo,
                        -1,
                        0
                        )
            self._Comments = []
        self._Done()

    def _GetApplicableSectionMacro(self):
        Macros = {}
        for S1, S2, SectionType in self._Scope:
            for Scope1, Scope2 in [("COMMON", "COMMON"), ("COMMON", S2), (S1, "COMMON"), (S1, S2)]:
                if (SectionType, Scope1, Scope2) in self._SectionsMacroDict:
                    Macros.update(self._SectionsMacroDict[(SectionType, Scope1, Scope2)])
        return Macros

    ## Section header parser
    #
    #   The section header is always in following format:
    #
    #       [section_name.arch<.platform|module_type>]
    #
    def _SectionHeaderParser(self):
        self._Scope = []
        self._SectionName = ''
        self._SectionType = []
        ArchList = set()
        for Item in GetSplitValueList(self._CurrentLine[1:-1], TAB_COMMA_SPLIT):
            if Item == '':
                continue
            ItemList = GetSplitValueList(Item, TAB_SPLIT)

            # different types of PCD are permissible in one section
            self._SectionName = ItemList[0].upper()
            if self._SectionName in self.DataType:
                if self.DataType[self._SectionName] not in self._SectionType:
                    self._SectionType.append(self.DataType[self._SectionName])
            else:
                EdkLogger.warn("Parser", "Unrecognized section", File=self.MetaFile,
                                Line=self._LineIndex+1, ExtraData=self._CurrentLine)
                continue

            if MODEL_PCD_FEATURE_FLAG in self._SectionType and len(self._SectionType) > 1:
                EdkLogger.error(
                            'Parser',
                            FORMAT_INVALID,
                            "%s must not be in the same section of other types of PCD" % TAB_PCDS_FEATURE_FLAG_NULL,
                            File=self.MetaFile,
                            Line=self._LineIndex+1,
                            ExtraData=self._CurrentLine
                            )
            # S1 is always Arch
            if len(ItemList) > 1:
                S1 = ItemList[1].upper()
            else:
                S1 = 'COMMON'
            ArchList.add(S1)
            # S2 may be Platform or ModuleType
            if len(ItemList) > 2:
                S2 = ItemList[2].upper()
            else:
                S2 = 'COMMON'
            if [S1, S2, self.DataType[self._SectionName]] not in self._Scope:
                self._Scope.append([S1, S2, self.DataType[self._SectionName]])

        # 'COMMON' must not be used with specific ARCHs at the same section
        if 'COMMON' in ArchList and len(ArchList) > 1:
            EdkLogger.error('Parser', FORMAT_INVALID, "'common' ARCH must not be used with specific ARCHs",
                            File=self.MetaFile, Line=self._LineIndex+1, ExtraData=self._CurrentLine)

    ## [guids], [ppis] and [protocols] section parser
    @ParseMacro
    def _GuidParser(self):
        TokenList = GetSplitValueList(self._CurrentLine, TAB_EQUAL_SPLIT, 1)
        if len(TokenList) < 2:
            EdkLogger.error('Parser', FORMAT_INVALID, "No GUID name or value specified",
                            ExtraData=self._CurrentLine + " (<CName> = <GuidValueInCFormat>)",
                            File=self.MetaFile, Line=self._LineIndex+1)
        if TokenList[0] == '':
            EdkLogger.error('Parser', FORMAT_INVALID, "No GUID name specified",
                            ExtraData=self._CurrentLine + " (<CName> = <GuidValueInCFormat>)",
                            File=self.MetaFile, Line=self._LineIndex+1)
        if TokenList[1] == '':
            EdkLogger.error('Parser', FORMAT_INVALID, "No GUID value specified",
                            ExtraData=self._CurrentLine + " (<CName> = <GuidValueInCFormat>)",
                            File=self.MetaFile, Line=self._LineIndex+1)
        if TokenList[1][0] != '{' or TokenList[1][-1] != '}' or GuidStructureStringToGuidString(TokenList[1]) == '':
            EdkLogger.error('Parser', FORMAT_INVALID, "Invalid GUID value format",
                            ExtraData=self._CurrentLine + \
                                      " (<CName> = <GuidValueInCFormat:{8,4,4,{2,2,2,2,2,2,2,2}}>)",
                            File=self.MetaFile, Line=self._LineIndex+1)
        self._ValueList[0] = TokenList[0]
        #Parse the Guid value format
        GuidValueList = TokenList[1].strip(' {}').split(',')
        Index = 0
        HexList = []
        if len(GuidValueList) == 11:
            for GuidValue in GuidValueList:
                GuidValue = GuidValue.strip()
                if GuidValue.startswith('0x') or GuidValue.startswith('0X'):
                    HexList.append('0x' + str(GuidValue[2:]))
                    Index += 1
                    continue
                else:
                    if GuidValue.startswith('{'):
                        GuidValue = GuidValue.lstrip(' {')
                        HexList.append('0x' + str(GuidValue[2:]))
                        Index += 1
            self._ValueList[1] = "{ %s, %s, %s, { %s, %s, %s, %s, %s, %s, %s, %s }}" % (HexList[0], HexList[1], HexList[2],HexList[3],HexList[4],HexList[5],HexList[6],HexList[7],HexList[8],HexList[9],HexList[10])
        else:
            EdkLogger.error('Parser', FORMAT_INVALID, "Invalid GUID value format",
                            ExtraData=self._CurrentLine + \
                                      " (<CName> = <GuidValueInCFormat:{8,4,4,{2,2,2,2,2,2,2,2}}>)",
                            File=self.MetaFile, Line=self._LineIndex+1)
            self._ValueList[0] = ''

    ## PCD sections parser
    #
    #   [PcdsFixedAtBuild]
    #   [PcdsPatchableInModule]
    #   [PcdsFeatureFlag]
    #   [PcdsDynamicEx
    #   [PcdsDynamic]
    #
    @ParseMacro
    def _PcdParser(self):
        TokenList = GetSplitValueList(self._CurrentLine, TAB_VALUE_SPLIT, 1)
        self._ValueList[0:1] = GetSplitValueList(TokenList[0], TAB_SPLIT)
        # check PCD information
        if self._ValueList[0] == '' or self._ValueList[1] == '':
            EdkLogger.error('Parser', FORMAT_INVALID, "No token space GUID or PCD name specified",
                            ExtraData=self._CurrentLine + \
                                      " (<TokenSpaceGuidCName>.<PcdCName>|<DefaultValue>|<DatumType>|<Token>)",
                            File=self.MetaFile, Line=self._LineIndex+1)
        # check PCD datum information
        if len(TokenList) < 2 or TokenList[1] == '':
            EdkLogger.error('Parser', FORMAT_INVALID, "No PCD Datum information given",
                            ExtraData=self._CurrentLine + \
                                      " (<TokenSpaceGuidCName>.<PcdCName>|<DefaultValue>|<DatumType>|<Token>)",
                            File=self.MetaFile, Line=self._LineIndex+1)

        
        ValueRe  = re.compile(r'^\s*L?\".*\|.*\"')
        PtrValue = ValueRe.findall(TokenList[1])
        
        # Has VOID* type string, may contain "|" character in the string. 
        if len(PtrValue) != 0:
            ptrValueList = re.sub(ValueRe, '', TokenList[1])
            ValueList    = GetSplitValueList(ptrValueList)
            ValueList[0] = PtrValue[0]
        else:
            ValueList = GetSplitValueList(TokenList[1])
            
        
        # check if there's enough datum information given
        if len(ValueList) != 3:
            EdkLogger.error('Parser', FORMAT_INVALID, "Invalid PCD Datum information given",
                            ExtraData=self._CurrentLine + \
                                      " (<TokenSpaceGuidCName>.<PcdCName>|<DefaultValue>|<DatumType>|<Token>)",
                            File=self.MetaFile, Line=self._LineIndex+1)
        # check default value
        if ValueList[0] == '':
            EdkLogger.error('Parser', FORMAT_INVALID, "Missing DefaultValue in PCD Datum information",
                            ExtraData=self._CurrentLine + \
                                      " (<TokenSpaceGuidCName>.<PcdCName>|<DefaultValue>|<DatumType>|<Token>)",
                            File=self.MetaFile, Line=self._LineIndex+1)
        # check datum type
        if ValueList[1] == '':
            EdkLogger.error('Parser', FORMAT_INVALID, "Missing DatumType in PCD Datum information",
                            ExtraData=self._CurrentLine + \
                                      " (<TokenSpaceGuidCName>.<PcdCName>|<DefaultValue>|<DatumType>|<Token>)",
                            File=self.MetaFile, Line=self._LineIndex+1)
        # check token of the PCD
        if ValueList[2] == '':
            EdkLogger.error('Parser', FORMAT_INVALID, "Missing Token in PCD Datum information",
                            ExtraData=self._CurrentLine + \
                                      " (<TokenSpaceGuidCName>.<PcdCName>|<DefaultValue>|<DatumType>|<Token>)",
                            File=self.MetaFile, Line=self._LineIndex+1)
        # check format of default value against the datum type
        IsValid, Cause = CheckPcdDatum(ValueList[1], ValueList[0])
        if not IsValid:
            EdkLogger.error('Parser', FORMAT_INVALID, Cause, ExtraData=self._CurrentLine,
                            File=self.MetaFile, Line=self._LineIndex+1)
        
        if EccGlobalData.gConfig.UniCheckPCDInfo == '1' or EccGlobalData.gConfig.UniCheckAll == '1' or EccGlobalData.gConfig.CheckAll == '1':
            # check Description, Prompt information
            PatternDesc = re.compile('##\s*([\x21-\x7E\s]*)', re.S)
            PatternPrompt = re.compile('#\s+@Prompt\s+([\x21-\x7E\s]*)', re.S)
            Description = None
            Prompt = None
            # check @ValidRange, @ValidList and @Expression format valid
            ErrorCodeValid = '0x0 <= %s <= 0xFFFFFFFF'
            PatternValidRangeIn = '(NOT)?\s*(\d+\s*-\s*\d+|0[xX][a-fA-F0-9]+\s*-\s*0[xX][a-fA-F0-9]+|LT\s*\d+|LT\s*0[xX][a-fA-F0-9]+|GT\s*\d+|GT\s*0[xX][a-fA-F0-9]+|LE\s*\d+|LE\s*0[xX][a-fA-F0-9]+|GE\s*\d+|GE\s*0[xX][a-fA-F0-9]+|XOR\s*\d+|XOR\s*0[xX][a-fA-F0-9]+|EQ\s*\d+|EQ\s*0[xX][a-fA-F0-9]+)'
            PatternValidRng = re.compile('^' + '(NOT)?\s*' + PatternValidRangeIn + '$')
            for Comment in self._Comments:
                Comm = Comment[0].strip()
                if not Comm:
                    continue
                if not Description:
                    Description = PatternDesc.findall(Comm)
                if not Prompt:
                    Prompt = PatternPrompt.findall(Comm)
                if Comm[0] == '#':
                    ValidFormt = Comm.lstrip('#')
                    ValidFormt = ValidFormt.lstrip()
                    if ValidFormt[0:11] == '@ValidRange':
                        ValidFormt = ValidFormt[11:]
                        ValidFormt = ValidFormt.lstrip()
                        try:
                            ErrorCode, Expression = ValidFormt.split('|', 1)
                        except ValueError:
                            ErrorCode = '0x0'
                            Expression = ValidFormt
                        ErrorCode, Expression = ErrorCode.strip(), Expression.strip()
                        try:
                            if not eval(ErrorCodeValid % ErrorCode):
                                EdkLogger.warn('Parser', '@ValidRange ErrorCode(%s) of PCD %s is not valid UINT32 value.' % (ErrorCode, TokenList[0]))
                        except:
                            EdkLogger.warn('Parser', '@ValidRange ErrorCode(%s) of PCD %s is not valid UINT32 value.' % (ErrorCode, TokenList[0]))
                        if not PatternValidRng.search(Expression):
                            EdkLogger.warn('Parser', '@ValidRange Expression(%s) of PCD %s is incorrect format.' % (Expression, TokenList[0]))
                    if ValidFormt[0:10] == '@ValidList':
                        ValidFormt = ValidFormt[10:]
                        ValidFormt = ValidFormt.lstrip()
                        try:
                            ErrorCode, Expression = ValidFormt.split('|', 1)
                        except ValueError:
                            ErrorCode = '0x0'
                            Expression = ValidFormt
                        ErrorCode, Expression = ErrorCode.strip(), Expression.strip()
                        try:
                            if not eval(ErrorCodeValid % ErrorCode):
                                EdkLogger.warn('Parser', '@ValidList ErrorCode(%s) of PCD %s is not valid UINT32 value.' % (ErrorCode, TokenList[0]))
                        except:
                            EdkLogger.warn('Parser', '@ValidList ErrorCode(%s) of PCD %s is not valid UINT32 value.' % (ErrorCode, TokenList[0]))
                        Values = Expression.split(',')
                        for Value in Values:
                            Value = Value.strip()
                            try:
                                eval(Value)
                            except:
                                EdkLogger.warn('Parser', '@ValidList Expression of PCD %s include a invalid value(%s).' % (TokenList[0], Value))
                                break
                    if ValidFormt[0:11] == '@Expression':
                        ValidFormt = ValidFormt[11:]
                        ValidFormt = ValidFormt.lstrip()
                        try:
                            ErrorCode, Expression = ValidFormt.split('|', 1)
                        except ValueError:
                            ErrorCode = '0x0'
                            Expression = ValidFormt
                        ErrorCode, Expression = ErrorCode.strip(), Expression.strip()
                        try:
                            if not eval(ErrorCodeValid % ErrorCode):
                                EdkLogger.warn('Parser', '@Expression ErrorCode(%s) of PCD %s is not valid UINT32 value.' % (ErrorCode, TokenList[0]))
                        except:
                            EdkLogger.warn('Parser', '@Expression ErrorCode(%s) of PCD %s is not valid UINT32 value.' % (ErrorCode, TokenList[0]))
                        if not Expression:
                            EdkLogger.warn('Parser', '@Expression Expression of PCD %s is incorrect format.' % TokenList[0])
            if not Description:
                EdkLogger.warn('Parser', 'PCD %s Description information is not provided.' % TokenList[0])
            if not Prompt:
                EdkLogger.warn('Parser', 'PCD %s Prompt information is not provided.' % TokenList[0])
            # check Description, Prompt localization information
            if self._UniObj:
                self._UniObj.CheckPcdInfo(TokenList[0])

        if ValueList[0] in ['True', 'true', 'TRUE']:
            ValueList[0] = '1'
        elif ValueList[0] in ['False', 'false', 'FALSE']:
            ValueList[0] = '0'

        self._ValueList[2] = ValueList[0].strip() + '|' + ValueList[1].strip() + '|' + ValueList[2].strip()

    _SectionParser = {
        MODEL_META_DATA_HEADER          :   MetaFileParser._DefineParser,
        MODEL_EFI_INCLUDE               :   MetaFileParser._PathParser,
        MODEL_EFI_LIBRARY_CLASS         :   MetaFileParser._PathParser,
        MODEL_EFI_GUID                  :   _GuidParser,
        MODEL_EFI_PPI                   :   _GuidParser,
        MODEL_EFI_PROTOCOL              :   _GuidParser,
        MODEL_PCD_FIXED_AT_BUILD        :   _PcdParser,
        MODEL_PCD_PATCHABLE_IN_MODULE   :   _PcdParser,
        MODEL_PCD_FEATURE_FLAG          :   _PcdParser,
        MODEL_PCD_DYNAMIC               :   _PcdParser,
        MODEL_PCD_DYNAMIC_EX            :   _PcdParser,
        MODEL_UNKNOWN                   :   MetaFileParser._Skip,
        MODEL_META_DATA_USER_EXTENSION  :   MetaFileParser._Skip,
    }


## FdfObject
#
# This class defined basic Fdf object which is used by inheriting
# 
# @param object:       Inherited from object class
#
class FdfObject(object):
    def __init__(self):
        object.__init__()

## Fdf
#
# This class defined the structure used in Fdf object
# 
# @param FdfObject:     Inherited from FdfObject class
# @param Filename:      Input value for Ffilename of Fdf file, default is None
# @param WorkspaceDir:  Input value for current workspace directory, default is None
#
class Fdf(FdfObject):
    def __init__(self, Filename = None, IsToDatabase = False, WorkspaceDir = None, Database = None):
        self.WorkspaceDir = WorkspaceDir
        self.IsToDatabase = IsToDatabase
        
        self.Cur = Database.Cur
        self.TblFile = Database.TblFile
        self.TblFdf = Database.TblFdf
        self.FileID = -1
        self.FileList = {}

        #
        # Load Fdf file if filename is not None
        #
        if Filename != None:
            try:
                self.LoadFdfFile(Filename)
            except Exception:
                pass

    #
    # Insert a FDF file record into database
    #
    def InsertFile(self, Filename):
        FileID = -1
        Filename = NormPath(Filename)
        if Filename not in self.FileList:
            FileID = self.TblFile.InsertFile(Filename, MODEL_FILE_FDF)
            self.FileList[Filename] = FileID

        return self.FileList[Filename]
            
    
    ## Load Fdf file
    #
    # Load the file if it exists
    #
    # @param Filename:  Input value for filename of Fdf file
    #
    def LoadFdfFile(self, Filename):     
        FileList = []
        #
        # Parse Fdf file
        #
        Filename = NormPath(Filename)
        Fdf = FdfParser(Filename)
        Fdf.ParseFile()

        #
        # Insert inf file and pcd information
        #
        if self.IsToDatabase:
            (Model, Value1, Value2, Value3, Scope1, Scope2, BelongsToItem, BelongsToFile, StartLine, StartColumn, EndLine, EndColumn, Enabled) = \
            (0, '', '', '', 'COMMON', 'COMMON', -1, -1, -1, -1, -1, -1, 0)
            for Index in range(0, len(Fdf.Profile.PcdDict)):
                pass
            for Key in Fdf.Profile.PcdDict.keys():
                Model = MODEL_PCD
                Value1 = Key[1]
                Value2 = Key[0]
                FileName = Fdf.Profile.PcdFileLineDict[Key][0]
                StartLine = Fdf.Profile.PcdFileLineDict[Key][1]
                BelongsToFile = self.InsertFile(FileName)
                self.TblFdf.Insert(Model, Value1, Value2, Value3, Scope1, Scope2, BelongsToItem, BelongsToFile, StartLine, StartColumn, EndLine, EndColumn, Enabled)
            for Index in range(0, len(Fdf.Profile.InfList)):
                Model = MODEL_META_DATA_COMPONENT
                Value1 = Fdf.Profile.InfList[Index]
                Value2 = ''
                FileName = Fdf.Profile.InfFileLineList[Index][0]
                StartLine = Fdf.Profile.InfFileLineList[Index][1]
                BelongsToFile = self.InsertFile(FileName)
                self.TblFdf.Insert(Model, Value1, Value2, Value3, Scope1, Scope2, BelongsToItem, BelongsToFile, StartLine, StartColumn, EndLine, EndColumn, Enabled)

class UniParser(object):
    # IsExtraUni defined the UNI file is Module UNI or extra Module UNI
    # IsModuleUni defined the UNI file is Module UNI or Package UNI
    def __init__(self, FilePath, IsExtraUni=False, IsModuleUni=True):
        self.FilePath = FilePath
        self.FileName = os.path.basename(FilePath)
        self.IsExtraUni = IsExtraUni
        self.IsModuleUni = IsModuleUni
        self.FileIn = None
        self.Missing = []
        self.__read()
    
    def __read(self):
        try:
            self.FileIn = CodecOpenLongFilePath(self.FilePath, Mode='rb', Encoding='utf_8').read()
        except UnicodeError:
            self.FileIn = CodecOpenLongFilePath(self.FilePath, Mode='rb', Encoding='utf_16').read()
        except UnicodeError:
            self.FileIn = CodecOpenLongFilePath(self.FilePath, Mode='rb', Encoding='utf_16_le').read()
        except IOError:
            self.FileIn = ""
    
    def Start(self):
        if self.IsModuleUni:
            if self.IsExtraUni:
                ModuleName = self.CheckKeyValid('STR_PROPERTIES_MODULE_NAME')
                self.PrintLog('STR_PROPERTIES_MODULE_NAME', ModuleName)
            else:
                ModuleAbstract = self.CheckKeyValid('STR_MODULE_ABSTRACT')
                self.PrintLog('STR_MODULE_ABSTRACT', ModuleAbstract)
                ModuleDescription = self.CheckKeyValid('STR_MODULE_DESCRIPTION')
                self.PrintLog('STR_MODULE_DESCRIPTION', ModuleDescription)
        else:
            if self.IsExtraUni:
                PackageName = self.CheckKeyValid('STR_PROPERTIES_PACKAGE_NAME')
                self.PrintLog('STR_PROPERTIES_PACKAGE_NAME', PackageName)
            else:
                PackageAbstract = self.CheckKeyValid('STR_PACKAGE_ABSTRACT')
                self.PrintLog('STR_PACKAGE_ABSTRACT', PackageAbstract)
                PackageDescription = self.CheckKeyValid('STR_PACKAGE_DESCRIPTION')
                self.PrintLog('STR_PACKAGE_DESCRIPTION', PackageDescription)
                
    def CheckKeyValid(self, Key, Contents=None):
        if not Contents:
            Contents = self.FileIn
        KeyPattern = re.compile('#string\s+%s\s+.*?#language.*?".*?"' % Key, re.S)
        if KeyPattern.search(Contents):
            return True
        return False
    
    def CheckPcdInfo(self, PcdCName):
        PromptKey = 'STR_%s_PROMPT' % PcdCName.replace('.', '_')
        PcdPrompt = self.CheckKeyValid(PromptKey)
        self.PrintLog(PromptKey, PcdPrompt)
        HelpKey = 'STR_%s_HELP' % PcdCName.replace('.', '_')
        PcdHelp = self.CheckKeyValid(HelpKey)
        self.PrintLog(HelpKey, PcdHelp)
    
    def PrintLog(self, Key, Value):
        if not Value and Key not in self.Missing:
            Msg = '%s is missing in the %s file.' % (Key, self.FileName)
            EdkLogger.warn('Parser', Msg)
            EccGlobalData.gDb.TblReport.Insert(EccToolError.ERROR_GENERAL_CHECK_UNI_HELP_INFO, OtherMsg=Msg, BelongsToTable='File', BelongsToItem=-2)
            self.Missing.append(Key)

##
#
# This acts like the main() function for the script, unless it is 'import'ed into another
# script.
#
if __name__ == '__main__':
    pass