tools/elftosb/common/ExcludesListMatcher.cpp

   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
  12 ExcludesListMatcher::ExcludesListMatcher()
  13 :       GlobMatcher("")
  14 {
  15 }
  16
  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.
  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.
  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