added partial VFS support - enough to read static data from any source

ExternalLibs/ttvfs/VFSTools.h

@@ -0,0 +1,59 @@
+// VFSTools.h - useful functions and misc stuff
+// For conditions of distribution and use, see copyright notice in VFS.h
+
+#ifndef VFS_TOOLS_H
+#define VFS_TOOLS_H
+
+#include <deque>
+#include <string>
+
+#include "VFSDefines.h"
+
+VFS_NAMESPACE_START
+
+typedef std::deque<std::string> StringList;
+
+std::string stringToUpper(const std::string& s);
+std::string stringToLower(const std::string& s);
+void makeUppercase(std::string& s);
+void makeLowercase(std::string& s);
+void GetFileList(const char *, StringList& files);
+void GetDirList(const char *, StringList& dirs, bool recursive = false);
+bool FileExists(const char *);
+bool IsDirectory(const char *);
+bool CreateDir(const char*);
+bool CreateDirRec(const char*);
+vfspos GetFileSize(const char*);
+std::string FixSlashes(const std::string& s);
+std::string FixPath(const std::string& s);
+const char *PathToFileName(const char *str);
+void MakeSlashTerminated(std::string& s);
+std::string StripFileExtension(const std::string& s);
+std::string StripLastPath(const std::string& s);
+void GetFileListRecursive(std::string dir, StringList& files, bool withQueriedDir = false);
+bool WildcardMatch(const char *str, const char *pattern);
+size_t strnNLcpy(char *dst, const char *src, unsigned int n = -1);
+
+template <class T> void StrSplit(const std::string &src, const std::string &sep, T& container, bool keepEmpty = false)
+{
+    std::string s;
+    for (std::string::const_iterator i = src.begin(); i != src.end(); i++)
+    {
+        if (sep.find(*i) != std::string::npos)
+        {
+            if (keepEmpty || s.length())
+                container.push_back(s);
+            s = "";
+        }
+        else
+        {
+            s += *i;
+        }
+    }
+    if (keepEmpty || s.length())
+        container.push_back(s);
+}
+
+VFS_NAMESPACE_END
+
+#endif