Fix typo in grammar.

Add lexertl.

inc/lexertl/old/fast_filebuf.hpp

@@ -0,0 +1,45 @@
+// Quick hack...
+// If you find this really is faster then using std::ifstream, let me know
+// as I can always spend some more time to improve it.
+
+namespace lexertl
+{
+template<typename CharT, class Traits>
+class basic_fast_filebuf : public std::basic_streambuf<CharT, Traits>
+{
+public:
+    basic_fast_filebuf (const char *filename_) :
+        _fp (0)
+    {
+        _fp = ::fopen(filename_, "r");
+    }
+
+    virtual ~basic_fast_filebuf()
+    {
+        ::fclose(_fp);
+        _fp = 0;
+    }
+
+protected:
+    FILE *_fp;
+
+    virtual std::streamsize xsgetn (CharT *ptr_, std::streamsize count_)
+    {
+        return ::fread (ptr_, sizeof(CharT),
+            static_cast<std::size_t>(count_), _fp);
+    }
+};
+
+typedef basic_fast_filebuf<char, std::char_traits<char> > fast_filebuf;
+typedef basic_fast_filebuf<wchar_t, std::char_traits<wchar_t> > wfast_filebuf;
+}
+
+// Usage:
+// lexertl::rules rules_;
+// lexertl::state_machine state_machine_;
+// fast_filebuf buf ("Unicode/PropList.txt");
+// std::istream if_(&buf);
+// lexertl::stream_shared_iterator iter_ (if_);
+// lexertl::stream_shared_iterator end_;
+// lexertl::match_results<lexertl::stream_shared_iterator>
+//     results_(iter_, end_);