1 /*
2  * File:  ExcludesListMatcher.cpp
3  *
4  * Copyright (c) Freescale Semiconductor, Inc. All rights reserved.
5  * See included license file for license details.
6  */
7 
8 #include "ExcludesListMatcher.h"
9 
10 using namespace elftosb;
11 
ExcludesListMatcher()12 ExcludesListMatcher::ExcludesListMatcher()
13 :         GlobMatcher("")
14 {
15 }
16 
~ExcludesListMatcher()17 ExcludesListMatcher::~ExcludesListMatcher()
18 {
19 }
20 
21 //! \param isInclude True if this pattern is an include, false if it is an exclude.
22 //! \param pattern String containing the glob pattern.
addPattern(bool isInclude,const std::string & pattern)23 void ExcludesListMatcher::addPattern(bool isInclude, const std::string & pattern)
24 {
25           glob_list_item_t item;
26           item.m_isInclude = isInclude;
27           item.m_glob = pattern;
28 
29           // add to end of list
30           m_patterns.push_back(item);
31 }
32 
33 //! If there are no entries in the match list, the match fails.
34 //!
35 //! \param testValue The string to match against the pattern list.
36 //! \retval true The \a testValue argument matches.
37 //! \retval false No match was made against the argument.
match(const std::string & testValue)38 bool ExcludesListMatcher::match(const std::string & testValue)
39 {
40           if (!m_patterns.size())
41           {
42                     return false;
43           }
44 
45           // Iterate over the match list. Includes act as an OR operator, while
46           // excludes act as an AND operator.
47           bool didMatch = false;
48           bool isFirstItem = true;
49           glob_list_t::iterator it = m_patterns.begin();
50           for (; it != m_patterns.end(); ++it)
51           {
52                     glob_list_item_t & item = *it;
53 
54                     // if this pattern is an include and it doesn't match, or
55                     // if this pattern is an exclude and it does match, then the match fails
56                     bool didItemMatch = globMatch(testValue.c_str(), item.m_glob.c_str());
57 
58                     if (item.m_isInclude)
59                     {
60                               // Include
61                               if (isFirstItem)
62                               {
63                                         didMatch = didItemMatch;
64                               }
65                               else
66                               {
67                                         didMatch = didMatch || didItemMatch;
68                               }
69                     }
70                     else
71                     {
72                               // Exclude
73                               if (isFirstItem)
74                               {
75                                         didMatch = !didItemMatch;
76                               }
77                               else
78                               {
79                                         didMatch = didMatch && !didItemMatch;
80                               }
81                     }
82 
83                     isFirstItem = false;
84           }
85 
86           return didMatch;
87 }
88 
89