cmStringCommand: Add GENEX_STRIP subcommand.

Strip out any generator expressions in the input string.

2 files changed, 26 insertions, 0 deletions

diff --git a/Source/cmStringCommand.cxx b/Source/cmStringCommand.cxx
index 7bc7b05..ea762eb 100644
--- a/Source/cmStringCommand.cxx
+++ b/Source/cmStringCommand.cxx
@@ -101,6 +101,10 @@ bool cmStringCommand
     {
     return this->HandleMakeCIdentifierCommand(args);
     }
+  else if(subCommand == "GENEX_STRIP")
+    {
+    return this->HandleGenexStripCommand(args);
+    }
 
   std::string e = "does not recognize sub-command "+subCommand;
   this->SetError(e);
@@ -810,6 +814,27 @@ bool cmStringCommand
 }
 
 //----------------------------------------------------------------------------
+bool cmStringCommand
+::HandleGenexStripCommand(std::vector<std::string> const& args)
+{
+  if(args.size() != 3)
+    {
+    this->SetError("sub-command GENEX_STRIP requires two arguments.");
+    return false;
+    }
+
+  const std::string& input = args[1];
+
+  std::string result = cmGeneratorExpression::Preprocess(input,
+                        cmGeneratorExpression::StripAllGeneratorExpressions);
+
+  const std::string& variableName = args[2];
+
+  this->Makefile->AddDefinition(variableName, result.c_str());
+  return true;
+}
+
+//----------------------------------------------------------------------------
 bool cmStringCommand::HandleStripCommand(
   std::vector<std::string> const& args)
 {
diff --git a/Source/cmStringCommand.h b/Source/cmStringCommand.h
index b8053c5..5b7412d 100644
--- a/Source/cmStringCommand.h
+++ b/Source/cmStringCommand.h
@@ -75,6 +75,7 @@ protected:
   bool HandleFindCommand(std::vector<std::string> const& args);
   bool HandleTimestampCommand(std::vector<std::string> const& args);
   bool HandleMakeCIdentifierCommand(std::vector<std::string> const& args);
+  bool HandleGenexStripCommand(std::vector<std::string> const& args);
 
   class RegexReplacement
   {