Source/cmRemoveCommand.cxx

   1 /*=========================================================================
   2
   3   Program:   Insight Segmentation & Registration Toolkit
   4   Module:    $RCSfile: cmRemoveCommand.cxx,v $
   5   Language:  C++
   6   Date:      $Date: 2002-04-22 15:50:43 $
   7   Version:   $Revision: 1.1 $
   8
   9   Copyright (c) 2002 Insight Consortium. All rights reserved.
  10   See ITKCopyright.txt or http://www.itk.org/HTML/Copyright.htm for details.
  11
  12      This software is distributed WITHOUT ANY WARRANTY; without even
  13      the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR
  14      PURPOSE.  See the above copyright notices for more information.
  15
  16 =========================================================================*/
  17 #include "cmRemoveCommand.h"
  18
  19 // cmRemoveCommand
  20 bool cmRemoveCommand::InitialPass(std::vector<std::string> const& args)
  21 {
  22   if(args.size() < 2 )
  23     {
  24     this->SetError("called with incorrect number of arguments");
  25     return false;
  26     }
  27
  28   const char* variable = args[0].c_str(); // VAR is always first
  29   // get the old value
  30   const char* cacheValue
  31     = m_Makefile->GetDefinition(variable);
  32
  33   // expand the variable
  34   std::vector<std::string> varArgsExpanded;
  35   std::vector<std::string> temp;
  36   temp.push_back(std::string(cacheValue));
  37   cmSystemTools::ExpandListArguments(temp, varArgsExpanded);
  38
  39   // expand the args
  40   // check for REMOVE(VAR v1 v2 ... vn)
  41   std::vector<std::string> argsExpanded;
  42   std::vector<std::string> temp2;
  43   for(unsigned int j = 1; j < args.size(); ++j)
  44     {
  45     temp2.push_back(args[j]);
  46     }
  47   cmSystemTools::ExpandListArguments(temp2, argsExpanded);
  48
  49   // now create the new value
  50   std::string value;
  51   for(unsigned int j = 1; j < varArgsExpanded.size(); ++j)
  52     {
  53     int found = 0;
  54     for(unsigned int k = 1; k < argsExpanded.size(); ++k)
  55       {
  56       if (varArgsExpanded[j] == argsExpanded[k])
  57         {
  58         found = 1;
  59         break;
  60         }
  61       }
  62     if (!found)
  63       {
  64       if (value.size())
  65         {
  66         value += ";";
  67         }
  68       value += varArgsExpanded[j];
  69       }
  70     }
  71
  72   // add the definition
  73   m_Makefile->AddDefinition(variable, value.c_str());
  74
  75   return true;
  76 }
  77