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authorAnas Nashif <anas.nashif@intel.com>2012-10-30 15:39:57 -0700
committerAnas Nashif <anas.nashif@intel.com>2012-10-30 15:39:57 -0700
commit035c7fabc3b82cbc9a346c11abe2e9462b4c0379 (patch)
tree7e40f5a790eae329a8c5d3e59f046451767956ff /Source/cmRemoveCommand.cxx
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Imported Upstream version 2.8.9upstream/2.8.9
Diffstat (limited to 'Source/cmRemoveCommand.cxx')
-rw-r--r--Source/cmRemoveCommand.cxx76
1 files changed, 76 insertions, 0 deletions
diff --git a/Source/cmRemoveCommand.cxx b/Source/cmRemoveCommand.cxx
new file mode 100644
index 000000000..d80b3fe9f
--- /dev/null
+++ b/Source/cmRemoveCommand.cxx
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+/*============================================================================
+ CMake - Cross Platform Makefile Generator
+ Copyright 2000-2009 Kitware, Inc., Insight Software Consortium
+
+ Distributed under the OSI-approved BSD License (the "License");
+ see accompanying file Copyright.txt for details.
+
+ This software is distributed WITHOUT ANY WARRANTY; without even the
+ implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
+ See the License for more information.
+============================================================================*/
+#include "cmRemoveCommand.h"
+
+// cmRemoveCommand
+bool cmRemoveCommand
+::InitialPass(std::vector<std::string> const& args, cmExecutionStatus &)
+{
+ if(args.size() < 1)
+ {
+ return true;
+ }
+
+ const char* variable = args[0].c_str(); // VAR is always first
+ // get the old value
+ const char* cacheValue
+ = this->Makefile->GetDefinition(variable);
+
+ // if there is no old value then return
+ if (!cacheValue)
+ {
+ return true;
+ }
+
+ // expand the variable
+ std::vector<std::string> varArgsExpanded;
+ cmSystemTools::ExpandListArgument(cacheValue, varArgsExpanded);
+
+ // expand the args
+ // check for REMOVE(VAR v1 v2 ... vn)
+ std::vector<std::string> argsExpanded;
+ std::vector<std::string> temp;
+ for(unsigned int j = 1; j < args.size(); ++j)
+ {
+ temp.push_back(args[j]);
+ }
+ cmSystemTools::ExpandList(temp, argsExpanded);
+
+ // now create the new value
+ std::string value;
+ for(unsigned int j = 0; j < varArgsExpanded.size(); ++j)
+ {
+ int found = 0;
+ for(unsigned int k = 0; k < argsExpanded.size(); ++k)
+ {
+ if (varArgsExpanded[j] == argsExpanded[k])
+ {
+ found = 1;
+ break;
+ }
+ }
+ if (!found)
+ {
+ if (value.size())
+ {
+ value += ";";
+ }
+ value += varArgsExpanded[j];
+ }
+ }
+
+ // add the definition
+ this->Makefile->AddDefinition(variable, value.c_str());
+
+ return true;
+}
+