Beginning of transition rules

parseraction.hpp

@@ -5,7 +5,7 @@ namespace Parser {
   class Action
   {
   public:
-    virtual ~Action();
+    virtual ~Action() {}
   };
 
   class Ignore : public Action {};

parserstate.cpp

@@ -1 +1,37 @@
 #include "parserstate.hpp"
+
+using namespace Parser;
+
+Transition State::anywhere_rule( wchar_t ch )
+{
+  if ( (ch == 0x18) || (ch == 0x1A)
+       || ((0x80 <= ch) && (ch <= 0x8F))
+       || ((0x91 <= ch) && (ch <= 0x97))
+       || (ch == 0x99) || (ch == 0x9A) ) {
+    return Transition( Execute(), new Ground() );
+  } else if ( ch == 0x9C ) {
+    return Transition( Ignore(), new Ground() );
+  } else if ( ch == 0x1B ) {
+    return Transition( Ignore(), new Escape() );
+  } else if ( (ch == 0x98) || (ch == 0x9E) || (ch == 0x9F) ) {
+    return Transition( Ignore(), new SOS_PM_APC_String() );
+  } else if ( ch == 0x90 ) {
+    return Transition( Ignore(), new DCS_Entry() );
+  } else if ( ch == 0x9D ) {
+    return Transition( Ignore(), new OSC_String() );
+  } else if ( ch == 0x9B ) {
+    return Transition( Ignore(), new CSI_Entry() );
+  }
+
+  return Transition( Ignore(), NULL );
+}
+
+Transition State::input( wchar_t ch )
+{
+  Transition any = anywhere_rule( ch );
+  if ( any.next_state ) {
+    return any;
+  } else {
+    return this->input_state_rule( ch );
+  }
+}

parserstate.hpp

@@ -6,23 +6,23 @@
 namespace Parser {
   class State
   {
+  protected:
+    virtual Transition input_state_rule( wchar_t ch ) { ch = ch; return Transition( Ignore(), NULL ); }
+
   private:
     virtual Action enter( void ) { return Ignore(); };
     virtual Action leave( void ) { return Ignore(); };
 
-    virtual Transition input( wchar_t ch __attribute__ ((unused)) ) {
-      return IgnoreTransition();
-    }
-
-    static Transition anywhere( wchar_t ch );
+    Transition input( wchar_t ch );
+    Transition anywhere_rule( wchar_t ch );
 
   public:
-    virtual ~State();
+    virtual ~State() {};
   };
 
   class Ground : public State {};
-  class Esc : public State {};
-  class Esc_Intermediate : public State {};
+  class Escape : public State {};
+  class Escape_Intermediate : public State {};
 
   class CSI_Entry : public State {};
   class CSI_Param : public State {};
@@ -35,7 +35,7 @@ namespace Parser {
   class DCS_Passthrough : public State {};
   class DCS_Ignore : public State {};
 
-  class OCS_String : public State {};
+  class OSC_String : public State {};
   class SOS_PM_APC_String : public State {};
 }
 

parsertransition.hpp

@@ -5,29 +5,24 @@
 
 #include "parseraction.hpp"
 
-class State;
-
 namespace Parser {
+  class State;
+
   class Transition
   {
   public:
     Action action;
     State *next_state;
 
-    Transition();
-    Transition( const Transition & );
+    Transition( const Transition &x )
+      : action( x.action ),
+	next_state( x.next_state ) {}
     bool operator=( const Transition & );
-    virtual ~Transition();
-  };
+    virtual ~Transition() {}
 
-  class IgnoreTransition : public Transition
-  {
-  public:
-    IgnoreTransition()
-    {
-      action = Ignore();
-      next_state = NULL;
-    }
+    Transition( Action s_action, State *s_next_state )
+      : action( s_action ), next_state( s_next_state )
+    {}
   };
 }