state.h

#ifndef STATE_H
#define STATE_H

#include <stdio.h>

class CxxScanner;
class Token;
class AddTraceString;
class IO;
//====================================================
//====================================================
class State
{
 public:
  enum State_t {NEUTRAL = 1, IDENT, STATICVAR, FDECL, CSTMT};

  State(const char* nameIn) { COPY_STRING(mp_name, nameIn);}

  virtual ~State()= 0;

  const char* name()        { return mp_name;              }

  virtual State_t execute(AddTraceString& ats, CxxScanner& scanner, Token* t) = 0;

  Token nonCommentRead(CxxScanner& scanner, const char* errStr = 0);

 private:
  char* mp_name;
};

//====================================================
//====================================================
class Neutral: public State
{
 public:
  ~Neutral() {}

  State_t execute(AddTraceString& ats, CxxScanner& scanner, Token* t);

  static State* Instance();
 protected:

  Neutral() : State("%N%") {}
 private:
  static State* msp_instance;
};

//====================================================
//====================================================
class Ident: public State
{
 public:
  ~Ident() {}

  State_t execute(AddTraceString& ats, CxxScanner& scanner, Token* t);

  static State* Instance();
 protected:

  Ident() : State("%Id%") {}
 private:
  static State* msp_instance;
};

//====================================================
//====================================================
class StaticVar: public State
{
 public:
  ~StaticVar() {}

  State_t execute(AddTraceString& ats, CxxScanner& scanner, Token* t);

  static State* Instance();
 protected:
  StaticVar() : State("%SVAR%") {}
 private:
  static State* msp_instance;
};

//====================================================
//====================================================
class Fdecl: public State
{
 public:
  ~Fdecl() {}

  State_t execute(AddTraceString& ats, CxxScanner& scanner, Token* t);

  static State* Instance();
 protected:
  Fdecl() : State("%FDECL%") {}
 private:
  static State* msp_instance;
};

//====================================================
//====================================================
class Cstmt: public State
{
 public:
  ~Cstmt() {}

  State_t execute(AddTraceString& ats, CxxScanner& scanner, Token* t);

  static State* Instance();
 protected:
  Cstmt() : State("%CSTMT%") {}
 private:
  static State* msp_instance;
};


#endif // STATE_H

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