1## @file
2# Parser a Inf file and Get specify section data.
3#
4# Copyright (c) 2007 - 2012, Intel Corporation. All rights reserved.<BR>
5# This program and the accompanying materials
6# are licensed and made available under the terms and conditions of the BSD License
7# which accompanies this distribution.  The full text of the license may be found at
8# http://opensource.org/licenses/bsd-license.php
9#
10# THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,
11# WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.
12#
13
14## Import Modules
15#
16
17import Common.EdkLogger as EdkLogger
18from Common.BuildToolError import *
19from Common.DataType import *
20
21
22class InfSectionParser():
23    def __init__(self, FilePath):
24        self._FilePath = FilePath
25        self._FileSectionDataList = []
26        self._ParserInf()
27
28    def _ParserInf(self):
29        Filename = self._FilePath
30        FileLinesList = []
31        UserExtFind = False
32        FindEnd = True
33        FileLastLine = False
34        SectionLine = ''
35        SectionData = []
36
37        try:
38            FileLinesList = open(Filename, "r", 0).readlines()
39        except BaseException:
40            EdkLogger.error("build", AUTOGEN_ERROR, 'File %s is opened failed.' % Filename)
41
42        for Index in range(0, len(FileLinesList)):
43            line = str(FileLinesList[Index]).strip()
44            if Index + 1 == len(FileLinesList):
45                FileLastLine = True
46                NextLine = ''
47            else:
48                NextLine = str(FileLinesList[Index + 1]).strip()
49            if UserExtFind and FindEnd == False:
50                if line:
51                    SectionData.append(line)
52            if line.lower().startswith(TAB_SECTION_START) and line.lower().endswith(TAB_SECTION_END):
53                SectionLine = line
54                UserExtFind = True
55                FindEnd = False
56
57            if (NextLine != '' and NextLine[0] == TAB_SECTION_START and \
58                NextLine[-1] == TAB_SECTION_END) or FileLastLine:
59                UserExtFind = False
60                FindEnd = True
61                self._FileSectionDataList.append({SectionLine: SectionData[:]})
62                SectionData = []
63                SectionLine = ''
64
65
66    # Get depex expresion
67    #
68    # @return: a list include some dictionary that key is section and value is a list contain all data.
69    def GetDepexExpresionList(self):
70        DepexExpresionList = []
71        if not self._FileSectionDataList:
72            return DepexExpresionList
73        for SectionDataDict in self._FileSectionDataList:
74            for key in SectionDataDict.keys():
75                if key.lower() == "[depex]" or key.lower().startswith("[depex."):
76                    SectionLine = key.lstrip(TAB_SECTION_START).rstrip(TAB_SECTION_END)
77                    SubSectionList = [SectionLine]
78                    if str(SectionLine).find(TAB_COMMA_SPLIT) > -1:
79                        SubSectionList = str(SectionLine).split(TAB_COMMA_SPLIT)
80                    for SubSection in SubSectionList:
81                        SectionList = SubSection.split(TAB_SPLIT)
82                        SubKey = ()
83                        if len(SectionList) == 1:
84                            SubKey = (TAB_ARCH_COMMON, TAB_ARCH_COMMON)
85                        elif len(SectionList) == 2:
86                            SubKey = (SectionList[1], TAB_ARCH_COMMON)
87                        elif len(SectionList) == 3:
88                            SubKey = (SectionList[1], SectionList[2])
89                        else:
90                            EdkLogger.error("build", AUTOGEN_ERROR, 'Section %s is invalid.' % key)
91                        DepexExpresionList.append({SubKey: SectionDataDict[key]})
92        return DepexExpresionList
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