Scripts are executable now!

The main interactive interface doesn't work, and there's a lot left to do with
the unit tests, other command line options, etc. but it's pretty exciting.

I also still have to figure out how commands will work.  I'm thinking they'll
be stored in an Expression and executed by the engine as normal.

1 files changed, 33 insertions, 0 deletions

diff --git a/src/scriptengine.h b/src/scriptengine.h
new file mode 100644
index 0000000..74924d6
--- /dev/null
+++ b/src/scriptengine.h
@@ -0,0 +1,33 @@
+#ifndef SCRIPT_ENGINE_H
+#define SCRIPT_ENGINE_H
+
+#include "number.h"
+
+#include <bu/hash.h>
+#include <bu/list.h>
+#include <bu/string.h>
+
+
+namespace Bu
+{
+    class Stream;
+}
+class Expression;
+
+class ScriptEngine
+{
+public:
+    ScriptEngine();
+    virtual ~ScriptEngine();
+
+    Number exec( const Bu::String &sExpr );
+    Number exec( Bu::Stream &sInput );
+    Number exec( Expression *pExpr );
+
+private:
+    typedef Bu::Hash<Bu::String, Number> VarHash;
+    typedef Bu::List<Number> NumStack;
+    VarHash hVarState;
+};
+
+#endif