summaryrefslogtreecommitdiff
path: root/BaseTools/Source/Python/UPT/Parser/DecParser.py
blob: 060b9274f3c3e638b2bbfce453f8e06e80c2fcc8 (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
392
393
394
395
396
397
398
399
400
401
402
403
404
405
406
407
408
409
410
411
412
413
414
415
416
417
418
419
420
421
422
423
424
425
426
427
428
429
430
431
432
433
434
435
436
437
438
439
440
441
442
443
444
445
446
447
448
449
450
451
452
453
454
455
456
457
458
459
460
461
462
463
464
465
466
467
468
469
470
471
472
473
474
475
476
477
478
479
480
481
482
483
484
485
486
487
488
489
490
491
492
493
494
495
496
497
498
499
500
501
502
503
504
505
506
507
508
509
510
511
512
513
514
515
516
517
518
519
520
521
522
523
524
525
526
527
528
529
530
531
532
533
534
535
536
537
538
539
540
541
542
543
544
545
546
547
548
549
550
551
552
553
554
555
556
557
558
559
560
561
562
563
564
565
566
567
568
569
570
571
572
573
574
575
576
577
578
579
580
581
582
583
584
585
586
587
588
589
590
591
592
593
594
595
596
597
598
599
600
601
602
603
604
605
606
607
608
609
610
611
612
613
614
615
616
617
618
619
620
621
622
623
624
625
626
627
628
629
630
631
632
633
634
635
636
637
638
639
640
641
642
643
644
645
646
647
648
649
650
651
652
653
654
655
656
657
658
659
660
661
662
663
664
665
666
667
668
669
670
671
672
673
674
675
676
677
678
679
680
681
682
683
684
685
686
687
688
689
690
691
692
693
694
695
696
697
698
699
700
701
702
703
704
705
706
707
708
709
710
711
712
713
714
715
716
717
718
719
720
721
722
723
724
725
726
727
728
729
730
731
732
733
734
735
736
737
738
739
740
741
742
743
744
745
746
747
748
749
750
751
752
753
754
755
756
757
758
759
760
761
762
763
764
765
766
767
768
769
770
771
772
773
774
775
776
777
778
779
780
781
782
783
784
785
786
787
788
789
790
791
792
793
794
795
796
797
798
799
800
801
802
803
804
805
806
807
808
809
810
811
812
813
814
815
816
817
818
819
820
821
822
823
824
825
826
827
828
829
830
831
832
833
834
835
836
837
838
839
840
841
842
843
844
845
846
847
848
849
850
851
852
853
854
855
856
857
858
859
860
861
862
863
864
865
866
867
868
869
870
871
872
873
874
875
876
877
878
879
880
881
882
883
884
885
886
887
888
889
890
891
892
893
894
895
896
897
898
899
900
901
902
903
904
905
906
907
908
909
910
911
912
913
914
915
916
917
918
919
920
921
922
923
924
925
926
927
928
929
930
931
932
933
934
935
936
937
938
939
940
941
942
943
944
945
946
947
948
949
950
951
952
953
954
955
956
957
958
959
960
961
962
963
964
965
966
967
968
969
970
971
972
973
974
975
976
977
978
979
980
981
982
983
984
985
986
987
988
989
990
991
992
993
994
995
996
997
998
999
1000
1001
1002
1003
1004
1005
1006
1007
1008
1009
1010
1011
1012
1013
1014
1015
1016
1017
1018
1019
1020
1021
1022
1023
1024
1025
1026
1027
1028
1029
1030
1031
1032
1033
1034
1035
1036
1037
## @file
# This file is used to parse DEC file. It will consumed by DecParser
#
# Copyright (c) 2011 - 2013, 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.
'''
DecParser
'''
## Import modules
#
import Logger.Log as Logger
from Logger.ToolError import FILE_PARSE_FAILURE
from Logger.ToolError import FILE_OPEN_FAILURE
from Logger import StringTable as ST
from Logger.ToolError import FORMAT_INVALID

import Library.DataType as DT
from Library.ParserValidate import IsValidToken
from Library.ParserValidate import IsValidPath
from Library.ParserValidate import IsValidCFormatGuid
from Library.ParserValidate import IsValidIdString
from Library.ParserValidate import IsValidUserId
from Library.ParserValidate import IsValidArch
from Library.ParserValidate import IsValidWord
from Parser.DecParserMisc import TOOL_NAME
from Parser.DecParserMisc import CleanString
from Parser.DecParserMisc import IsValidPcdDatum
from Parser.DecParserMisc import ParserHelper
from Parser.DecParserMisc import StripRoot
from Parser.DecParserMisc import VERSION_PATTERN
from Parser.DecParserMisc import CVAR_PATTERN
from Parser.DecParserMisc import PCD_TOKEN_PATTERN
from Parser.DecParserMisc import MACRO_PATTERN
from Parser.DecParserMisc import FileContent
from Object.Parser.DecObject import _DecComments
from Object.Parser.DecObject import DecDefineObject
from Object.Parser.DecObject import DecDefineItemObject
from Object.Parser.DecObject import DecIncludeObject
from Object.Parser.DecObject import DecIncludeItemObject
from Object.Parser.DecObject import DecLibraryclassObject
from Object.Parser.DecObject import DecLibraryclassItemObject
from Object.Parser.DecObject import DecGuidObject
from Object.Parser.DecObject import DecPpiObject
from Object.Parser.DecObject import DecProtocolObject
from Object.Parser.DecObject import DecGuidItemObject
from Object.Parser.DecObject import DecUserExtensionObject
from Object.Parser.DecObject import DecUserExtensionItemObject
from Object.Parser.DecObject import DecPcdObject
from Object.Parser.DecObject import DecPcdItemObject
from Library.Misc import GuidStructureStringToGuidString
from Library.Misc import CheckGuidRegFormat
from Library.String import ReplaceMacro
from Library.String import GetSplitValueList
from Library.String import gMACRO_PATTERN
from Library.String import ConvertSpecialChar

##
# _DecBase class for parsing
#
class _DecBase:
    def __init__(self, RawData):
        self._RawData = RawData
        self._ItemDict = {}
        self._LocalMacro = {}
        #
        # Data parsed by 'self' are saved to this object
        #
        self.ItemObject = None
    
    def GetDataObject(self):
        return self.ItemObject
    
    ## BlockStart
    #
    # Called if a new section starts
    #
    def BlockStart(self):
        self._LocalMacro = {}
    
    ## _CheckReDefine
    #
    # @param Key: to be checked if multi-defined
    # @param Scope: Format: [[SectionName, Arch], ...]. 
    #               If scope is none, use global scope
    #
    def _CheckReDefine(self, Key, Scope = None):
        if not Scope:
            Scope = self._RawData.CurrentScope
            return
        
        SecArch = []
        #
        # Copy scope to SecArch, avoid Scope be changed outside
        #
        SecArch[0:1] = Scope[:]
        if Key not in self._ItemDict:
            self._ItemDict[Key] = [[SecArch, self._RawData.LineIndex]]
            return
        
        for Value in self._ItemDict[Key]:
            for SubValue in Scope:
                #
                # If current is common section
                #
                if SubValue[-1] == 'COMMON':
                    for Other in Value[0]:
                        # Key in common cannot be redefined in other arches
                        # [:-1] means stripping arch info
                        if Other[:-1] == SubValue[:-1]:
                            self._LoggerError(ST.ERR_DECPARSE_REDEFINE % (Key, Value[1]))
                            return
                    continue
                CommonScope = []
                CommonScope[0:1] = SubValue
                CommonScope[-1] = 'COMMON'
                #
                # Cannot be redefined if this key already defined in COMMON Or defined in same arch
                #
                if SubValue in Value[0] or CommonScope in Value[0]:
                    self._LoggerError(ST.ERR_DECPARSE_REDEFINE % (Key, Value[1]))
                    return
        self._ItemDict[Key].append([SecArch, self._RawData.LineIndex])
    
    ## CheckRequiredFields
    # Some sections need to check if some fields exist, define section for example
    # Derived class can re-implement, top parser will call this function after all parsing done
    #  
    def CheckRequiredFields(self):
        if self._RawData:
            pass
        return True
    
    ## IsItemRequired
    # In DEC spec, sections must have at least one statement except user 
    # extension.
    # For example: "[guids" [<attribs>] "]" <EOL> <statements>+
    # sub class can override this method to indicate if statement is a must.
    #
    def _IsStatementRequired(self):
        if self._RawData:
            pass
        return False
    
    def _LoggerError(self, ErrorString):
        Logger.Error(TOOL_NAME, FILE_PARSE_FAILURE, File=self._RawData.Filename, 
                     Line = self._RawData.LineIndex,
                     ExtraData=ErrorString + ST.ERR_DECPARSE_LINE % self._RawData.CurrentLine)
    
    def _ReplaceMacro(self, String):
        if gMACRO_PATTERN.findall(String):
            String = ReplaceMacro(String, self._LocalMacro, False,
                                  FileName = self._RawData.Filename,
                                  Line = ['', self._RawData.LineIndex])
            String = ReplaceMacro(String, self._RawData.Macros, False,
                                  FileName = self._RawData.Filename,
                                  Line = ['', self._RawData.LineIndex])
            MacroUsed = gMACRO_PATTERN.findall(String)
            if MacroUsed:
                Logger.Error(TOOL_NAME, FILE_PARSE_FAILURE,
                             File=self._RawData.Filename, 
                             Line = self._RawData.LineIndex,
                             ExtraData = ST.ERR_DECPARSE_MACRO_RESOLVE % (str(MacroUsed), String))
        return String
    
    def _MacroParser(self, String):
        TokenList = GetSplitValueList(String, ' ', 1)
        if len(TokenList) < 2 or TokenList[1] == '':
            self._LoggerError(ST.ERR_DECPARSE_MACRO_PAIR)

        TokenList = GetSplitValueList(TokenList[1], DT.TAB_EQUAL_SPLIT, 1)
        if TokenList[0] == '':
            self._LoggerError(ST.ERR_DECPARSE_MACRO_NAME)
        elif not IsValidToken(MACRO_PATTERN, TokenList[0]):
            self._LoggerError(ST.ERR_DECPARSE_MACRO_NAME_UPPER % TokenList[0])
        
        if len(TokenList) == 1:
            self._LocalMacro[TokenList[0]] = ''
        else:
            self._LocalMacro[TokenList[0]] = self._ReplaceMacro(TokenList[1])
    
    ## _ParseItem
    #
    # Parse specified item, this function must be derived by subclass
    #
    def _ParseItem(self):
        if self._RawData:
            pass
        #
        # Should never be called
        #
        return None

    
    ## _TailCommentStrategy
    #
    # This function can be derived to parse tail comment
    # default is it will not consume any lines
    #
    # @param Comment: Comment of current line
    #
    def _TailCommentStrategy(self, Comment):
        if Comment:
            pass
        if self._RawData:
            pass
        return False
    
    ## _StopCurrentParsing
    #
    # Called in Parse if current parsing should be stopped when encounter some
    # keyword
    # Default is section start and end
    #
    # @param Line: Current line
    #
    def _StopCurrentParsing(self, Line):
        if self._RawData:
            pass
        return Line[0] == DT.TAB_SECTION_START and Line[-1] == DT.TAB_SECTION_END
    
    ## _TryBackSlash
    #
    # Split comment and DEC content, concatenate lines if end of char is '\'
    #
    # @param ProcessedLine: ProcessedLine line
    # @param ProcessedComments: ProcessedComments line
    #
    def _TryBackSlash(self, ProcessedLine, ProcessedComments):
        CatLine = ''
        Comment = ''
        Line = ProcessedLine
        CommentList = ProcessedComments
        while not self._RawData.IsEndOfFile():
            if Line == '':
                self._LoggerError(ST.ERR_DECPARSE_BACKSLASH_EMPTY)
                break
            
            if Comment:
                CommentList.append((Comment, self._RawData.LineIndex))
            if Line[-1] != DT.TAB_SLASH:
                CatLine += Line
                break
            elif len(Line) < 2 or Line[-2] != ' ':
                self._LoggerError(ST.ERR_DECPARSE_BACKSLASH)
            else:
                CatLine += Line[:-1]
                Line, Comment = CleanString(self._RawData.GetNextLine())
        #
        # Reach end of content
        #
        if self._RawData.IsEndOfFile():
            if not CatLine:
                if ProcessedLine[-1] == DT.TAB_SLASH:
                    self._LoggerError(ST.ERR_DECPARSE_BACKSLASH_EMPTY)
                CatLine = ProcessedLine
            else:
                if not Line or Line[-1] == DT.TAB_SLASH:
                    self._LoggerError(ST.ERR_DECPARSE_BACKSLASH_EMPTY)
                CatLine += Line
         
        self._RawData.CurrentLine = self._ReplaceMacro(CatLine)
        return CatLine, CommentList
    
    ## Parse
    # This is a template method in which other member functions which might 
    # override by sub class are called. It is responsible for reading file 
    # line by line, and call other member functions to parse. This function
    # should not be re-implement by sub class.
    #
    def Parse(self):
        HeadComments = []
        TailComments = []
        
        #======================================================================
        # CurComments may pointer to HeadComments or TailComments
        #======================================================================
        CurComments = HeadComments
        CurObj = None
        ItemNum = 0
        FromBuf = False
        
        #======================================================================
        # Used to report error information if empty section found
        #======================================================================
        Index = self._RawData.LineIndex
        LineStr = self._RawData.CurrentLine
        while not self._RawData.IsEndOfFile() or self._RawData.NextLine:
            if self._RawData.NextLine:
                #==============================================================
                # Have processed line in buffer
                #==============================================================
                Line = self._RawData.NextLine
                HeadComments.extend(self._RawData.HeadComment)
                TailComments.extend(self._RawData.TailComment)
                self._RawData.ResetNext()
                Comment = ''
                FromBuf = True
            else:
                #==============================================================
                # No line in buffer, read next line
                #==============================================================
                Line, Comment = CleanString(self._RawData.GetNextLine())
                FromBuf = False
            if Line:
                if not FromBuf and CurObj and TailComments:
                    #==========================================================
                    # Set tail comments to previous statement if not empty.
                    #==========================================================
                    CurObj.SetTailComment(CurObj.GetTailComment()+TailComments)
                
                if not FromBuf:
                    del TailComments[:]
                CurComments = TailComments
                Comments = []
                if Comment:
                    Comments = [(Comment, self._RawData.LineIndex)]
                
                #==============================================================
                # Try if last char of line has backslash
                #==============================================================
                Line, Comments = self._TryBackSlash(Line, Comments)
                CurComments.extend(Comments)
                
                #==============================================================
                # Macro found
                #==============================================================
                if Line.startswith('DEFINE '):
                    self._MacroParser(Line)
                    del HeadComments[:]
                    del TailComments[:]
                    CurComments = HeadComments
                    continue
                
                if self._StopCurrentParsing(Line):
                    #==========================================================
                    # This line does not belong to this parse,
                    # Save it, can be used by next parse
                    #==========================================================
                    self._RawData.SetNext(Line, HeadComments, TailComments)
                    break
                
                Obj = self._ParseItem()
                ItemNum += 1
                if Obj:
                    Obj.SetHeadComment(Obj.GetHeadComment()+HeadComments)
                    Obj.SetTailComment(Obj.GetTailComment()+TailComments)
                    del HeadComments[:]
                    del TailComments[:]
                    CurObj = Obj
                else:
                    CurObj = None
            else:
                if id(CurComments) == id(TailComments):
                    #==========================================================
                    # Check if this comment belongs to tail comment
                    #==========================================================
                    if not self._TailCommentStrategy(Comment):
                        CurComments = HeadComments

                if Comment:
                    CurComments.append(((Comment, self._RawData.LineIndex)))
                else:
                    del CurComments[:]
        
        if self._IsStatementRequired() and ItemNum == 0:
            Logger.Error(
                    TOOL_NAME, FILE_PARSE_FAILURE,
                    File=self._RawData.Filename,
                    Line=Index,
                    ExtraData=ST.ERR_DECPARSE_STATEMENT_EMPTY % LineStr
            )

## _DecDefine
# Parse define section
#
class _DecDefine(_DecBase):
    def __init__(self, RawData):
        _DecBase.__init__(self, RawData)
        self.ItemObject = DecDefineObject(RawData.Filename)
        self._LocalMacro = self._RawData.Macros
        self._DefSecNum = 0
        
        #
        # Each field has a function to validate
        #
        self.DefineValidation = {
            DT.TAB_DEC_DEFINES_DEC_SPECIFICATION   :   self._SetDecSpecification,
            DT.TAB_DEC_DEFINES_PACKAGE_NAME        :   self._SetPackageName,
            DT.TAB_DEC_DEFINES_PACKAGE_GUID        :   self._SetPackageGuid,
            DT.TAB_DEC_DEFINES_PACKAGE_VERSION     :   self._SetPackageVersion,
        }
    
    def BlockStart(self):
        self._DefSecNum += 1
        if self._DefSecNum > 1:
            self._LoggerError(ST.ERR_DECPARSE_DEFINE_MULTISEC)
    
    ## CheckRequiredFields
    #
    # Check required fields: DEC_SPECIFICATION, PACKAGE_NAME
    #                        PACKAGE_GUID, PACKAGE_VERSION
    #
    def CheckRequiredFields(self):
        Ret = False
        if self.ItemObject.GetPackageSpecification() == '':
            Logger.Error(TOOL_NAME, FILE_PARSE_FAILURE, File=self._RawData.Filename, 
                         ExtraData=ST.ERR_DECPARSE_DEFINE_REQUIRED % DT.TAB_DEC_DEFINES_DEC_SPECIFICATION)
        elif self.ItemObject.GetPackageName() == '':
            Logger.Error(TOOL_NAME, FILE_PARSE_FAILURE, File=self._RawData.Filename, 
                         ExtraData=ST.ERR_DECPARSE_DEFINE_REQUIRED % DT.TAB_DEC_DEFINES_PACKAGE_NAME)
        elif self.ItemObject.GetPackageGuid() == '':
            Logger.Error(TOOL_NAME, FILE_PARSE_FAILURE, File=self._RawData.Filename, 
                         ExtraData=ST.ERR_DECPARSE_DEFINE_REQUIRED % DT.TAB_DEC_DEFINES_PACKAGE_GUID)
        elif self.ItemObject.GetPackageVersion() == '':
            Logger.Error(TOOL_NAME, FILE_PARSE_FAILURE, File=self._RawData.Filename, 
                         ExtraData=ST.ERR_DECPARSE_DEFINE_REQUIRED % DT.TAB_DEC_DEFINES_PACKAGE_VERSION)
        else:
            Ret = True
        return Ret
    
    def _ParseItem(self):
        Line = self._RawData.CurrentLine
        TokenList = GetSplitValueList(Line, DT.TAB_EQUAL_SPLIT, 1)
        if TokenList[0] == DT.TAB_DEC_DEFINES_PKG_UNI_FILE:
            pass
        elif len(TokenList) < 2:
            self._LoggerError(ST.ERR_DECPARSE_DEFINE_FORMAT)
        elif TokenList[0] not in self.DefineValidation:
            self._LoggerError(ST.ERR_DECPARSE_DEFINE_UNKNOWKEY % TokenList[0])
        else:
            self.DefineValidation[TokenList[0]](TokenList[1])
        
        DefineItem = DecDefineItemObject()
        if TokenList[0] != DT.TAB_DEC_DEFINES_PKG_UNI_FILE:
            DefineItem.Key   = TokenList[0]
            DefineItem.Value = TokenList[1]
            self.ItemObject.AddItem(DefineItem, self._RawData.CurrentScope)
        return DefineItem
    
    def _SetDecSpecification(self, Token):
        if self.ItemObject.GetPackageSpecification():
            self._LoggerError(ST.ERR_DECPARSE_DEFINE_DEFINED % DT.TAB_DEC_DEFINES_DEC_SPECIFICATION)
        if not IsValidToken('0[xX][0-9a-fA-F]{8}', Token):
            self._LoggerError(ST.ERR_DECPARSE_DEFINE_SPEC)
        self.ItemObject.SetPackageSpecification(Token)
    
    def _SetPackageName(self, Token):
        if self.ItemObject.GetPackageName():
            self._LoggerError(ST.ERR_DECPARSE_DEFINE_DEFINED % DT.TAB_DEC_DEFINES_PACKAGE_NAME)
        if not IsValidWord(Token):
            self._LoggerError(ST.ERR_DECPARSE_DEFINE_PKGNAME)
        self.ItemObject.SetPackageName(Token)
    
    def _SetPackageGuid(self, Token):
        if self.ItemObject.GetPackageGuid():
            self._LoggerError(ST.ERR_DECPARSE_DEFINE_DEFINED % DT.TAB_DEC_DEFINES_PACKAGE_GUID)
        if not CheckGuidRegFormat(Token):
            self._LoggerError(ST.ERR_DECPARSE_DEFINE_PKGGUID)
        self.ItemObject.SetPackageGuid(Token)
    
    def _SetPackageVersion(self, Token):
        if self.ItemObject.GetPackageVersion():
            self._LoggerError(ST.ERR_DECPARSE_DEFINE_DEFINED % DT.TAB_DEC_DEFINES_PACKAGE_VERSION)
        if not IsValidToken(VERSION_PATTERN, Token):
            self._LoggerError(ST.ERR_DECPARSE_DEFINE_PKGVERSION)
        else:
            if not DT.TAB_SPLIT in Token:
                Token = Token + '.0'
            self.ItemObject._PkgVersion = Token

## _DecInclude
#
# Parse include section
#
class _DecInclude(_DecBase):
    def __init__(self, RawData):
        _DecBase.__init__(self, RawData)
        self.ItemObject = DecIncludeObject(RawData.Filename)
    
    def _ParseItem(self):
        Line = self._RawData.CurrentLine
        
        if not IsValidPath(Line, self._RawData.PackagePath):
            self._LoggerError(ST.ERR_DECPARSE_INCLUDE % Line) 
        
        Item = DecIncludeItemObject(StripRoot(self._RawData.PackagePath, Line), self._RawData.PackagePath)
        self.ItemObject.AddItem(Item, self._RawData.CurrentScope)
        return Item

## _DecLibraryclass
#
# Parse library class section
#
class _DecLibraryclass(_DecBase):
    def __init__(self, RawData):
        _DecBase.__init__(self, RawData)
        self.ItemObject = DecLibraryclassObject(RawData.Filename)
    
    def _ParseItem(self):
        Line = self._RawData.CurrentLine
        TokenList = GetSplitValueList(Line, DT.TAB_VALUE_SPLIT)
        if len(TokenList) != 2:
            self._LoggerError(ST.ERR_DECPARSE_LIBCLASS_SPLIT) 
        if TokenList[0] == '' or TokenList[1] == '':
            self._LoggerError(ST.ERR_DECPARSE_LIBCLASS_EMPTY)
        if not IsValidToken('[A-Z][0-9A-Za-z]*', TokenList[0]):
            self._LoggerError(ST.ERR_DECPARSE_LIBCLASS_LIB)
        
        self._CheckReDefine(TokenList[0])
        
        Value = TokenList[1]
        #
        # Must end with .h
        #
        if not Value.endswith('.h'):
            self._LoggerError(ST.ERR_DECPARSE_LIBCLASS_PATH_EXT)
        
        #
        # Path must be existed
        #
        if not IsValidPath(Value, self._RawData.PackagePath):
            self._LoggerError(ST.ERR_DECPARSE_INCLUDE % Value)
        
        Item = DecLibraryclassItemObject(TokenList[0], StripRoot(self._RawData.PackagePath, Value),
                                         self._RawData.PackagePath)
        self.ItemObject.AddItem(Item, self._RawData.CurrentScope)
        return Item

## _DecPcd
#
# Parse PCD section
#
class _DecPcd(_DecBase):
    def __init__(self, RawData):
        _DecBase.__init__(self, RawData)
        self.ItemObject = DecPcdObject(RawData.Filename)
        #
        # Used to check duplicate token
        # Key is token space and token number (integer), value is C name
        #
        self.TokenMap = {}
    
    def _ParseItem(self):
        Line = self._RawData.CurrentLine
        TokenList = Line.split(DT.TAB_VALUE_SPLIT)
        if len(TokenList) < 4:
            self._LoggerError(ST.ERR_DECPARSE_PCD_SPLIT)
        
        #
        # Token space guid C name
        #
        PcdName = GetSplitValueList(TokenList[0], DT.TAB_SPLIT)
        if len(PcdName) != 2 or PcdName[0] == '' or PcdName[1] == '':
            self._LoggerError(ST.ERR_DECPARSE_PCD_NAME)
        
        Guid = PcdName[0]
        if not IsValidToken(CVAR_PATTERN, Guid):
            self._LoggerError(ST.ERR_DECPARSE_PCD_CVAR_GUID)
        
        #
        # PCD C name
        #
        CName = PcdName[1]
        if not IsValidToken(CVAR_PATTERN, CName):
            self._LoggerError(ST.ERR_DECPARSE_PCD_CVAR_PCDCNAME)
        
        self._CheckReDefine(Guid + DT.TAB_SPLIT + CName)
        
        #
        # Default value, may be C array, string or number
        #
        Data = DT.TAB_VALUE_SPLIT.join(TokenList[1:-2]).strip()
        
        #
        # PCD data type
        #
        DataType = TokenList[-2].strip()
        Valid, Cause = IsValidPcdDatum(DataType, Data)
        if not Valid:
            self._LoggerError(Cause)
        PcdType = self._RawData.CurrentScope[0][0]
        if PcdType == DT.TAB_PCDS_FEATURE_FLAG_NULL.upper() and DataType != 'BOOLEAN':
            self._LoggerError(ST.ERR_DECPARSE_PCD_FEATUREFLAG)
        #
        # Token value is the last element in list.
        #
        Token = TokenList[-1].strip()
        if not IsValidToken(PCD_TOKEN_PATTERN, Token):
            self._LoggerError(ST.ERR_DECPARSE_PCD_TOKEN % Token)
        elif not Token.startswith('0x') and not Token.startswith('0X'):
            if long(Token) > 4294967295:
                self._LoggerError(ST.ERR_DECPARSE_PCD_TOKEN_INT % Token)
            Token = hex(long(Token))[:-1]
        
        IntToken = long(Token, 0)
        if (Guid, IntToken) in self.TokenMap:
            if self.TokenMap[Guid, IntToken] != CName:
                self._LoggerError(ST.ERR_DECPARSE_PCD_TOKEN_UNIQUE%(Token))
        else:
            self.TokenMap[Guid, IntToken] = CName
        
        Item = DecPcdItemObject(Guid, CName, Data, DataType, Token)
        self.ItemObject.AddItem(Item, self._RawData.CurrentScope)
        return Item
        
## _DecGuid
#
# Parse GUID, PPI, Protocol section
#
class _DecGuid(_DecBase):
    def __init__(self, RawData):
        _DecBase.__init__(self, RawData)
        self.GuidObj = DecGuidObject(RawData.Filename)
        self.PpiObj = DecPpiObject(RawData.Filename)
        self.ProtocolObj = DecProtocolObject(RawData.Filename)
        self.ObjectDict = \
        {
            DT.TAB_GUIDS.upper()     :   self.GuidObj,
            DT.TAB_PPIS.upper()      :   self.PpiObj,
            DT.TAB_PROTOCOLS.upper() :   self.ProtocolObj
        }
    
    def GetDataObject(self):
        if self._RawData.CurrentScope:
            return self.ObjectDict[self._RawData.CurrentScope[0][0]]
        return None
    
    def GetGuidObject(self):
        return self.GuidObj
    
    def GetPpiObject(self):
        return self.PpiObj
    
    def GetProtocolObject(self):
        return self.ProtocolObj
    
    def _ParseItem(self):
        Line = self._RawData.CurrentLine
        TokenList = GetSplitValueList(Line, DT.TAB_EQUAL_SPLIT, 1)
        if len(TokenList) < 2:
            self._LoggerError(ST.ERR_DECPARSE_CGUID)
        if TokenList[0] == '':
            self._LoggerError(ST.ERR_DECPARSE_CGUID_NAME)
        if TokenList[1] == '':
            self._LoggerError(ST.ERR_DECPARSE_CGUID_GUID)
        if not IsValidToken(CVAR_PATTERN, TokenList[0]):
            self._LoggerError(ST.ERR_DECPARSE_PCD_CVAR_GUID)
        
        self._CheckReDefine(TokenList[0])
        
        if TokenList[1][0] != '{':
            if not CheckGuidRegFormat(TokenList[1]):
                self._LoggerError(ST.ERR_DECPARSE_DEFINE_PKGGUID)
            GuidString = TokenList[1]
        else:
            #
            # Convert C format GUID to GUID string and Simple error check
            #
            GuidString = GuidStructureStringToGuidString(TokenList[1])
            if TokenList[1][0] != '{' or TokenList[1][-1] != '}' or GuidString == '':
                self._LoggerError(ST.ERR_DECPARSE_CGUID_GUIDFORMAT)
    
            #
            # Check C format GUID
            #
            if not IsValidCFormatGuid(TokenList[1]):
                self._LoggerError(ST.ERR_DECPARSE_CGUID_GUIDFORMAT)

        Item = DecGuidItemObject(TokenList[0], TokenList[1], GuidString)
        ItemObject = self.ObjectDict[self._RawData.CurrentScope[0][0]]
        ItemObject.AddItem(Item, self._RawData.CurrentScope)
        return Item

## _DecUserExtension
#
# Parse user extention section
#
class _DecUserExtension(_DecBase):
    def __init__(self, RawData):
        _DecBase.__init__(self, RawData)
        self.ItemObject = DecUserExtensionObject(RawData.Filename)
        self._Headers = []
        self._CurItems = []
    
    def BlockStart(self):
        self._CurItems = []
        for Header in self._RawData.CurrentScope:
            if Header in self._Headers:
                self._LoggerError(ST.ERR_DECPARSE_UE_DUPLICATE)
            else:
                self._Headers.append(Header)
            
            for Item in self._CurItems:
                if Item.UserId == Header[1] and Item.IdString == Header[2]:
                    Item.ArchAndModuleType.append(Header[3])
                    break
            else:
                Item = DecUserExtensionItemObject()
                Item.UserId = Header[1]
                Item.IdString = Header[2]
                Item.ArchAndModuleType.append(Header[3])
                self._CurItems.append(Item)
                self.ItemObject.AddItem(Item, None)
        self._LocalMacro = {}
    
    def _ParseItem(self):
        Line = self._RawData.CurrentLine
        Item = None
        for Item in self._CurItems:
            if Item.UserString:
                Item.UserString = '\n'.join([Item.UserString, Line])
            else:
                Item.UserString = Line
        return Item

## Dec
#
# Top dec parser
#
class Dec(_DecBase, _DecComments):    
    def __init__(self, DecFile, Parse = True):        
        try:
            Content   = ConvertSpecialChar(open(DecFile, 'rb').readlines())
        except BaseException:
            Logger.Error(TOOL_NAME, FILE_OPEN_FAILURE, File=DecFile,
                         ExtraData=ST.ERR_DECPARSE_FILEOPEN % DecFile)
        RawData = FileContent(DecFile, Content)
        
        _DecComments.__init__(self)
        _DecBase.__init__(self, RawData)
        
        self.BinaryHeadComment = []        
        self._Define    = _DecDefine(RawData)
        self._Include   = _DecInclude(RawData)
        self._Guid      = _DecGuid(RawData)
        self._LibClass  = _DecLibraryclass(RawData)
        self._Pcd       = _DecPcd(RawData)
        self._UserEx    = _DecUserExtension(RawData)
        
        #
        # DEC file supported data types (one type per section)
        #
        self._SectionParser = {
            DT.TAB_DEC_DEFINES.upper()                     :   self._Define,
            DT.TAB_INCLUDES.upper()                        :   self._Include,
            DT.TAB_LIBRARY_CLASSES.upper()                 :   self._LibClass,
            DT.TAB_GUIDS.upper()                           :   self._Guid,
            DT.TAB_PPIS.upper()                            :   self._Guid,
            DT.TAB_PROTOCOLS.upper()                       :   self._Guid,
            DT.TAB_PCDS_FIXED_AT_BUILD_NULL.upper()        :   self._Pcd,
            DT.TAB_PCDS_PATCHABLE_IN_MODULE_NULL.upper()   :   self._Pcd,
            DT.TAB_PCDS_FEATURE_FLAG_NULL.upper()          :   self._Pcd,
            DT.TAB_PCDS_DYNAMIC_NULL.upper()               :   self._Pcd,
            DT.TAB_PCDS_DYNAMIC_EX_NULL.upper()            :   self._Pcd,
            DT.TAB_USER_EXTENSIONS.upper()                 :   self._UserEx
        }

        if Parse:
            self.ParseDecComment()
            self.Parse()
            #
            # Parsing done, check required fields
            #
            self.CheckRequiredFields()
    
    def CheckRequiredFields(self):
        for SectionParser in self._SectionParser.values():
            if not SectionParser.CheckRequiredFields():
                return False
        return True
    
    ##
    # Parse DEC file
    #
    def ParseDecComment(self):
        IsFileHeader = False
        IsBinaryHeader = False
        FileHeaderLineIndex = -1
        BinaryHeaderLineIndex = -1
        while not self._RawData.IsEndOfFile():
            Line, Comment = CleanString(self._RawData.GetNextLine())

            #
            # Header must be pure comment
            #
            if Line != '':
                self._RawData.UndoNextLine()
                break
            
            if Comment and Comment.startswith(DT.TAB_SPECIAL_COMMENT) and Comment.find(DT.TAB_HEADER_COMMENT) > 0 \
                and not Comment[2:Comment.find(DT.TAB_HEADER_COMMENT)].strip():
                IsFileHeader = True
                IsBinaryHeader = False
                FileHeaderLineIndex = self._RawData.LineIndex
                
            #
            # Get license information before '@file' 
            #   
            if not IsFileHeader and not IsBinaryHeader and Comment and Comment.startswith(DT.TAB_COMMENT_SPLIT) and \
            DT.TAB_BINARY_HEADER_COMMENT not in Comment:
                self._HeadComment.append((Comment, self._RawData.LineIndex))
            
            if Comment and IsFileHeader and \
            not(Comment.startswith(DT.TAB_SPECIAL_COMMENT) \
            and Comment.find(DT.TAB_BINARY_HEADER_COMMENT) > 0):
                self._HeadComment.append((Comment, self._RawData.LineIndex))
            #
            # Double '#' indicates end of header comments
            #
            if (not Comment or Comment == DT.TAB_SPECIAL_COMMENT) and IsFileHeader:
                IsFileHeader = False  
                continue
            
            if Comment and Comment.startswith(DT.TAB_SPECIAL_COMMENT) \
            and Comment.find(DT.TAB_BINARY_HEADER_COMMENT) > 0:
                IsBinaryHeader = True
                IsFileHeader = False
                BinaryHeaderLineIndex = self._RawData.LineIndex
                
            if Comment and IsBinaryHeader:
                self.BinaryHeadComment.append((Comment, self._RawData.LineIndex))
            #
            # Double '#' indicates end of header comments
            #
            if (not Comment or Comment == DT.TAB_SPECIAL_COMMENT) and IsBinaryHeader:
                IsBinaryHeader = False
                break
            
            if FileHeaderLineIndex > -1 and not IsFileHeader and not IsBinaryHeader:
                break

        if FileHeaderLineIndex > BinaryHeaderLineIndex and FileHeaderLineIndex > -1 and BinaryHeaderLineIndex > -1:
            self._LoggerError(ST.ERR_BINARY_HEADER_ORDER)
            
        if FileHeaderLineIndex == -1:
            Logger.Error(TOOL_NAME, FORMAT_INVALID, 
                         ST.ERR_NO_SOURCE_HEADER,
                         File=self._RawData.Filename)        
        return
    
    def _StopCurrentParsing(self, Line):
        return False
    
    def _ParseItem(self):
        self._SectionHeaderParser()
        if len(self._RawData.CurrentScope) == 0:
            self._LoggerError(ST.ERR_DECPARSE_SECTION_EMPTY)

        SectionObj = self._SectionParser[self._RawData.CurrentScope[0][0]]

        SectionObj.BlockStart()
        SectionObj.Parse()
        
        return SectionObj.GetDataObject()

    def _UserExtentionSectionParser(self):
        self._RawData.CurrentScope = []
        ArchList = set()
        Section = self._RawData.CurrentLine[1:-1]
        
        Par = ParserHelper(Section, self._RawData.Filename)
        while not Par.End():
            #
            # User extention
            #
            Token = Par.GetToken()
            if Token.upper() != DT.TAB_USER_EXTENSIONS.upper():
                self._LoggerError(ST.ERR_DECPARSE_SECTION_UE)
            UserExtension = Token.upper()

            Par.AssertChar(DT.TAB_SPLIT, ST.ERR_DECPARSE_SECTION_UE, self._RawData.LineIndex)
            #
            # UserID
            #
            Token = Par.GetToken()
            if not IsValidUserId(Token):
                self._LoggerError(ST.ERR_DECPARSE_SECTION_UE_USERID)
            UserId = Token
            
            Par.AssertChar(DT.TAB_SPLIT, ST.ERR_DECPARSE_SECTION_UE, self._RawData.LineIndex)
            #
            # IdString
            #
            Token = Par.GetToken()
            if not IsValidIdString(Token):
                self._LoggerError(ST.ERR_DECPARSE_SECTION_UE_IDSTRING)
            IdString = Token
            
            Arch = 'COMMON'
            if Par.Expect(DT.TAB_SPLIT):
                Token = Par.GetToken()
                Arch = Token.upper()
                if not IsValidArch(Arch):
                    self._LoggerError(ST.ERR_DECPARSE_ARCH)
            ArchList.add(Arch)
            
            if [UserExtension, UserId, IdString, Arch] not in \
                self._RawData.CurrentScope:
                self._RawData.CurrentScope.append(
                    [UserExtension, UserId, IdString, Arch]
                )
            
            if not Par.Expect(DT.TAB_COMMA_SPLIT):
                break
            elif Par.End():
                self._LoggerError(ST.ERR_DECPARSE_SECTION_COMMA)
        
        Par.AssertEnd(ST.ERR_DECPARSE_SECTION_UE, self._RawData.LineIndex)
        
        if 'COMMON' in ArchList and len(ArchList) > 1:
            self._LoggerError(ST.ERR_DECPARSE_SECTION_COMMON)
 
    ## Section header parser
    #
    # The section header is always in following format:
    #
    # [section_name.arch<.platform|module_type>]
    #
    def _SectionHeaderParser(self):
        if self._RawData.CurrentLine[0] != DT.TAB_SECTION_START or self._RawData.CurrentLine[-1] != DT.TAB_SECTION_END:
            self._LoggerError(ST.ERR_DECPARSE_SECTION_IDENTIFY)
        
        RawSection = self._RawData.CurrentLine[1:-1].strip().upper()
        
        #
        # Check defines section which is only allowed to occur once and
        # no arch can be followed
        #
        if RawSection.startswith(DT.TAB_DEC_DEFINES.upper()):
            if RawSection != DT.TAB_DEC_DEFINES.upper():
                self._LoggerError(ST.ERR_DECPARSE_DEFINE_SECNAME)
        
        #
        # Check user extension section
        #
        if RawSection.startswith(DT.TAB_USER_EXTENSIONS.upper()):
            return self._UserExtentionSectionParser()
        
        self._RawData.CurrentScope = []
        SectionNames = []
        ArchList = set()
        for Item in GetSplitValueList(RawSection, DT.TAB_COMMA_SPLIT):
            if Item == '':
                self._LoggerError(ST.ERR_DECPARSE_SECTION_SUBEMPTY % self._RawData.CurrentLine)

            ItemList = GetSplitValueList(Item, DT.TAB_SPLIT)

            #
            # different types of PCD are permissible in one section
            #
            SectionName = ItemList[0]
            if SectionName not in self._SectionParser:
                self._LoggerError(ST.ERR_DECPARSE_SECTION_UNKNOW % SectionName)
            
            if SectionName not in SectionNames:
                SectionNames.append(SectionName)
            
            #
            # In DEC specification, all section headers have at most two part:
            # SectionName.Arch except UserExtention
            #
            if len(ItemList) > 2:
                self._LoggerError(ST.ERR_DECPARSE_SECTION_SUBTOOMANY % Item)

            if DT.TAB_PCDS_FEATURE_FLAG_NULL.upper() in SectionNames and len(SectionNames) > 1:
                self._LoggerError(ST.ERR_DECPARSE_SECTION_FEATUREFLAG % DT.TAB_PCDS_FEATURE_FLAG_NULL) 
            #
            # S1 is always Arch
            #
            if len(ItemList) > 1:
                Str1 = ItemList[1]
                if not IsValidArch(Str1):
                    self._LoggerError(ST.ERR_DECPARSE_ARCH)
            else:
                Str1 = 'COMMON'
            ArchList.add(Str1)

            if [SectionName, Str1] not in self._RawData.CurrentScope:
                self._RawData.CurrentScope.append([SectionName, Str1])
        #
        # 'COMMON' must not be used with specific ARCHs at the same section
        #
        if 'COMMON' in ArchList and len(ArchList) > 1:
            self._LoggerError(ST.ERR_DECPARSE_SECTION_COMMON)
        
        if len(SectionNames) == 0:
            self._LoggerError(ST.ERR_DECPARSE_SECTION_SUBEMPTY % self._RawData.CurrentLine)
        if len(SectionNames) != 1:
            for Sec in SectionNames:
                if not Sec.startswith(DT.TAB_PCDS.upper()):
                    self._LoggerError(ST.ERR_DECPARSE_SECTION_NAME % str(SectionNames))
    
    def GetDefineSectionObject(self):
        return self._Define.GetDataObject()
    
    def GetIncludeSectionObject(self):
        return self._Include.GetDataObject()
    
    def GetGuidSectionObject(self):
        return self._Guid.GetGuidObject()
    
    def GetProtocolSectionObject(self):
        return self._Guid.GetProtocolObject()
    
    def GetPpiSectionObject(self):
        return self._Guid.GetPpiObject()
    
    def GetLibraryClassSectionObject(self):
        return self._LibClass.GetDataObject()
    
    def GetPcdSectionObject(self):
        return self._Pcd.GetDataObject()
    
    def GetUserExtensionSectionObject(self):
        return self._UserEx.GetDataObject()
    
    def GetPackageSpecification(self):
        return self._Define.GetDataObject().GetPackageSpecification()
    
    def GetPackageName(self):
        return self._Define.GetDataObject().GetPackageName()
    
    def GetPackageGuid(self):
        return self._Define.GetDataObject().GetPackageGuid()
    
    def GetPackageVersion(self):
        return self._Define.GetDataObject().GetPackageVersion()
    
    def GetPackageUniFile(self):
        return self._Define.GetDataObject().GetPackageUniFile()