General

- Added format auto-detection to most loaders
  - Simplified BaseImporter::CanRead() with some utility methods
  - improved fast_atof -> no overruns anymore. Fuck you, irrlicht.
  - added assimp_cmd tool to allow command line model processing. Mainly adebugging tool for internal purposes, but others might find it useful, too.
  - vc8/vc9: revision number is now written to DLL version header
  - mkutil: some batch scripts to simplify tagging & building of release versions
  - some API cleanup
  - fixing some doxygen markup (+now explicit use of @file <filename>)
  - Icon for assimp_view and assimp_cmd

3DS
  - Normal vectors are not anymore inverted in some cases
  - Improved pivot handling
  - Improved handling of x-flipped meshes

Collada
  - fixed a minor bug (visual_scene element)

LWS 
  - WIP implementation. No animations yet, some bugs and crashes.
  - Animation system remains disabled, WIP code
  - many test files for LWS, but most of them test the anim support, which is, read above, currently disabled.

STL
  - fixing a log warning which appears for every model
  - added binary&ascii test spider, exported from truespace

MD3 
  - Cleaning up output tags for automatically joined player models.


IRR
  - Fixing coordinate system issues. 
  - Instance handling improved.
  - Some of the reported crashes not yet fixed.

PretransformVertices
  - Numerous performance improvements.
  - Added config option to preserve the hierarchy during the step.

RemoveRedundantMaterials
  - Added config option to specify a list of materials which are kept in every case.

UNREAL
  - Added support for the old unreal data format (*.a,*.d,*.uc)
  - tested only with exports from Milkshape
  - more Unreal stuff to come soon



git-svn-id: https://assimp.svn.sourceforge.net/svnroot/assimp/trunk@356 67173fc5-114c-0410-ac8e-9d2fd5bffc1f

code/IRRMeshLoader.cpp

@@ -67,26 +67,17 @@ IRRMeshImporter::~IRRMeshImporter()
 
 // ------------------------------------------------------------------------------------------------
 // Returns whether the class can handle the format of the given file. 
-bool IRRMeshImporter::CanRead( const std::string& pFile, IOSystem* pIOHandler) const
+bool IRRMeshImporter::CanRead( const std::string& pFile, IOSystem* pIOHandler, bool checkSig) const
 {
 	/* NOTE: A simple check for the file extension is not enough
 	 * here. Irrmesh and irr are easy, but xml is too generic
 	 * and could be collada, too. So we need to open the file and
 	 * search for typical tokens.
 	 */
+	const std::string extension = GetExtension(pFile);
 
-	std::string::size_type pos = pFile.find_last_of('.');
-
-	// no file extension - can't read
-	if( pos == std::string::npos)
-		return false;
-
-	std::string extension = pFile.substr( pos);
-	for (std::string::iterator i = extension.begin(); i != extension.end();++i)
-		*i = ::tolower(*i);
-
-	if (extension == ".irrmesh")return true;
-	else if (extension == ".xml")
+	if (extension == "irrmesh")return true;
+	else if (extension == "xml" || checkSig)
 	{
 		/*  If CanRead() is called to check whether the loader
 		 *  supports a specific file extension in general we
@@ -99,6 +90,14 @@ bool IRRMeshImporter::CanRead( const std::string& pFile, IOSystem* pIOHandler) c
 	return false;
 }
 
+// ------------------------------------------------------------------------------------------------
+// Get a list of all file extensions which are handled by this class
+void IRRMeshImporter::GetExtensionList(std::string& append)
+{
+	// fixme: consider cleaner handling of xml extension
+	append.append("*.xml;*.irrmesh");
+}
+
 // ------------------------------------------------------------------------------------------------
 // Imports the given file into the given scene structure. 
 void IRRMeshImporter::InternReadFile( const std::string& pFile,