This commit was manufactured by cvs2svn to create branch 'CCF'.

1 files changed, 65 insertions, 0 deletions

diff --git a/TAO/CIAO/CCF/CCF/CompilerElements/TokenStream.hpp b/TAO/CIAO/CCF/CCF/CompilerElements/TokenStream.hpp
new file mode 100644
index 00000000000..a157cfeb71b
--- /dev/null
+++ b/TAO/CIAO/CCF/CCF/CompilerElements/TokenStream.hpp
@@ -0,0 +1,65 @@
+#ifndef TOKEN_STREAM_HPP
+#define TOKEN_STREAM_HPP
+
+#include <string>
+#include <istream>
+
+namespace CCF
+{
+  template <typename Token>
+  class TokenStream
+  {
+  public:
+    virtual Token
+    next () = 0;
+  };
+
+
+  template <>
+  class TokenStream<char>
+  {
+  public:
+    typedef std::char_traits<char> traits;
+
+    typedef traits::int_type int_type;
+    typedef traits::char_type char_type;
+
+  public:
+    virtual int_type
+    next () = 0;
+
+    char_type
+    to_char_type (int_type i)
+    {
+      return traits::to_char_type (i);
+    }
+
+    bool
+    eos (int_type i)
+    {
+      return i == traits::eof ();
+    }
+  };
+
+  class InputStreamAdapter : public TokenStream<char>
+  {
+  public:
+    InputStreamAdapter (std::istream& is)
+        : is_ (is)
+    {
+    }
+
+  public:
+
+    virtual int_type
+    next ()
+    {
+      return is_.get ();
+    }
+
+  private:
+    std::istream& is_;
+  };
+}
+
+#endif //TOKEN_STREAM_HPP