ENH: add new command to separate space separated arguments

Source/cmCommands.cxx

@@ -64,6 +64,7 @@
 #include "cmOutputRequiredFilesCommand.cxx"
 #include "cmProjectCommand.cxx"
 #include "cmRemoveCommand.cxx"
+#include "cmSeparateArgumentsCommand.cxx"
 #include "cmSetCommand.cxx"
 #include "cmSetSourceFilesPropertiesCommand.cxx"
 #include "cmSiteNameCommand.cxx"
@@ -131,6 +132,7 @@ void GetPredefinedCommands(std::list<cmCommand*>& commands)
   commands.push_back(new cmOutputRequiredFilesCommand);  
   commands.push_back(new cmProjectCommand);
   commands.push_back(new cmRemoveCommand);
+  commands.push_back(new cmSeparateArgumentsCommand);
   commands.push_back(new cmSetCommand);
   commands.push_back(new cmSetSourceFilesPropertiesCommand);
   commands.push_back(new cmSiteNameCommand);

Source/cmSeparateArgumentsCommand.cxx

@@ -0,0 +1,38 @@
+/*=========================================================================
+
+  Program:   Insight Segmentation & Registration Toolkit
+  Module:    $RCSfile$
+  Language:  C++
+  Date:      $Date$
+  Version:   $Revision$
+
+  Copyright (c) 2002 Insight Consortium. All rights reserved.
+  See ITKCopyright.txt or http://www.itk.org/HTML/Copyright.htm for details.
+
+     This software is distributed WITHOUT ANY WARRANTY; without even 
+     the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR 
+     PURPOSE.  See the above copyright notices for more information.
+
+=========================================================================*/
+#include "cmSeparateArgumentsCommand.h"
+
+// cmSeparateArgumentsCommand
+bool cmSeparateArgumentsCommand::InitialPass(std::vector<std::string> const& args)
+{
+  if(args.size() != 1 )
+    {
+    this->SetError("called with incorrect number of arguments");
+    return false;
+    }
+  const char* cacheValue = m_Makefile->GetDefinition(args[0].c_str());
+  if(!cacheValue)
+    {
+    return true;
+    }
+  std::string value = cacheValue;
+  cmSystemTools::ReplaceString(value,
+                               " ", ";");
+  m_Makefile->AddDefinition(args[0].c_str(), value.c_str());
+  return true;
+}
+

Source/cmSeparateArgumentsCommand.h

@@ -0,0 +1,79 @@
+/*=========================================================================
+
+  Program:   Insight Segmentation & Registration Toolkit
+  Module:    $RCSfile$
+  Language:  C++
+  Date:      $Date$
+  Version:   $Revision$
+
+  Copyright (c) 2002 Insight Consortium. All rights reserved.
+  See ITKCopyright.txt or http://www.itk.org/HTML/Copyright.htm for details.
+
+     This software is distributed WITHOUT ANY WARRANTY; without even 
+     the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR 
+     PURPOSE.  See the above copyright notices for more information.
+
+=========================================================================*/
+#ifndef cmSeparateArgumentsCommand_h
+#define cmSeparateArgumentsCommand_h
+
+#include "cmStandardIncludes.h"
+#include "cmCommand.h"
+
+/** \class cmSeparateArgumentsCommand
+ * \brief SeparateArguments a CMAKE variable
+ *
+ * cmSeparateArgumentsCommand sets a variable to a value with expansion.  
+ */
+class cmSeparateArgumentsCommand : public cmCommand
+{
+public:
+  /**
+   * This is a virtual constructor for the command.
+   */
+  virtual cmCommand* Clone() 
+    {
+    return new cmSeparateArgumentsCommand;
+    }
+
+  /**
+   * This is called when the command is first encountered in
+   * the CMakeLists.txt file.
+   */
+  virtual bool InitialPass(std::vector<std::string> const& args);
+
+  /**
+   * This determines if the command gets propagated down
+   * to makefiles located in subdirectories.
+   */
+  virtual bool IsInherited() {return true;}
+
+  /**
+   * The name of the command as specified in CMakeList.txt.
+   */
+  virtual const char* GetName() {return "SEPARATE_ARGUMENTS";}
+  
+  /**
+   * Succinct documentation.
+   */
+  virtual const char* GetTerseDocumentation() 
+    {
+    return "Split space separated arguments into a semi-colon separated list.";
+    }
+  
+  /**
+   * More documentation.
+   */
+  virtual const char* GetFullDocumentation()
+    {
+    return
+      "SEPARATE_ARGUMENTS(VARIABLE)\n"
+      "Convert the value of VARIABLE to a semi-colon separated list.  All spaces are replaced with ;";
+    }
+  
+  cmTypeMacro(cmSeparateArgumentsCommand, cmCommand);
+};
+
+
+
+#endif