1 files changed, 131 insertions, 0 deletions
diff --git a/Source/cmUseMangledMesaCommand.cxx b/Source/cmUseMangledMesaCommand.cxx
new file mode 100644
index 0000000..0e6f28a
--- /dev/null
+++ b/Source/cmUseMangledMesaCommand.cxx
@@ -0,0 +1,131 @@
+/*============================================================================
+  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 "cmUseMangledMesaCommand.h"
+#include "cmSystemTools.h"
+
+#include <cmsys/RegularExpression.hxx>
+
+// cmUseMangledMesaCommand
+bool cmUseMangledMesaCommand
+::InitialPass(std::vector<std::string> const& args, cmExecutionStatus &)
+{ 
+  // expected two arguments:
+  // arguement one: the full path to gl_mangle.h
+  // arguement two : directory for output of edited headers
+  if(args.size() != 2)
+    {
+    this->SetError("called with incorrect number of arguments");
+    return false;
+    }
+  const char* inputDir = args[0].c_str();
+  std::string glh = inputDir;
+  glh += "/";
+  glh += "gl.h";
+  if(!cmSystemTools::FileExists(glh.c_str()))
+    {
+    std::string e = "Bad path to Mesa, could not find: ";
+    e += glh;
+    e += " ";
+    this->SetError(e.c_str());
+    return false;
+    }
+  const char* destDir = args[1].c_str();
+  std::vector<std::string> files;
+  cmSystemTools::Glob(inputDir, "\\.h$", files);
+  if(files.size() == 0)
+    {
+    cmSystemTools::Error("Could not open Mesa Directory ", inputDir);
+    return false;
+    }
+  cmSystemTools::MakeDirectory(destDir);
+  for(std::vector<std::string>::iterator i = files.begin();
+      i != files.end(); ++i)
+    {
+    std::string path = inputDir;
+    path += "/";
+    path += *i;
+    this->CopyAndFullPathMesaHeader(path.c_str(), destDir);
+    }
+  
+  return true;
+}
+
+void 
+cmUseMangledMesaCommand::
+CopyAndFullPathMesaHeader(const char* source,
+                          const char* outdir)
+{
+  std::string dir, file;
+  cmSystemTools::SplitProgramPath(source, dir, file);
+  std::string outFile = outdir;
+  outFile += "/";
+  outFile += file;
+  std::string tempOutputFile = outFile;
+  tempOutputFile += ".tmp";
+  std::ofstream fout(tempOutputFile.c_str());
+  if(!fout)
+    {
+    cmSystemTools::Error("Could not open file for write in copy operation: ", 
+                         tempOutputFile.c_str(), outdir);
+    cmSystemTools::ReportLastSystemError("");
+    return;
+    }
+  std::ifstream fin(source);
+  if(!fin)
+    {
+    cmSystemTools::Error("Could not open file for read in copy operation",
+                         source);
+    return;
+    }
+  // now copy input to output and expand variables in the
+  // input file at the same time
+  std::string inLine;  
+  // regular expression for any #include line
+  cmsys::RegularExpression includeLine(
+    "^[ \t]*#[ \t]*include[ \t]*[<\"]([^\">]+)[\">]");
+  // regular expression for gl/ or GL/ in a file (match(1) of above)
+  cmsys::RegularExpression glDirLine("(gl|GL)(/|\\\\)([^<\"]+)");
+  // regular expression for gl GL or xmesa in a file (match(1) of above)
+  cmsys::RegularExpression glLine("(gl|GL|xmesa)");
+  while(cmSystemTools::GetLineFromStream(fin,inLine))
+    {
+    if(includeLine.find(inLine.c_str()))
+      {
+      std::string includeFile = includeLine.match(1);
+      if(glDirLine.find(includeFile.c_str()))
+        {
+        std::string gfile = glDirLine.match(3);
+        fout << "#include \"" << outdir << "/" << gfile.c_str() << "\"\n";
+        }
+      else if(glLine.find(includeFile.c_str()))
+        {
+        fout << "#include \"" << outdir << "/" << 
+          includeLine.match(1).c_str() << "\"\n";
+        }
+      else
+        {
+        fout << inLine << "\n";
+        }
+      }
+    else
+      {
+      fout << inLine << "\n";
+      }
+    }
+  // close the files before attempting to copy
+  fin.close();
+  fout.close();
+  cmSystemTools::CopyFileIfDifferent(tempOutputFile.c_str(),
+                                     outFile.c_str());
+  cmSystemTools::RemoveFile(tempOutputFile.c_str());
+}
+