#ifndef symTab_h
#define symTab_h
#define AN_OBJECT 0
#define AN_OPERATION 1
#define NIL 0


/* These are used for the arrays of names */

#define HASHSIZ 100000
#define NAMESIZ 10000

typedef char *NameArray[NAMESIZ] ;
typedef char *HashArray[HASHSIZ] ;

struct specification
{
   struct object_list *objects;
   struct operation_list *operations;
   char *name;
};

struct spec_list
{
   struct specification spec;
   struct spec_list *next_spec;
};

struct object_list 
{
   struct object *component; 
   struct object_list *next_component;
};

struct namelist
{
    char *name;
    int start_pos,end_pos;     /* each name has an associated position */
    struct namelist *nextname;
};
    

struct link_list
{
   int link_type;
   int *link;     
   struct link_list *next_link;
};

struct graphics

{
   /* Graphics function, or a pixmap */
   int x;
   /* arguments to above function */
};

struct operation_list 
{
   
   struct operation *component;
   struct operation_list *next_component;
};

struct equations
{
   int x;
};


       
  
struct object
{

   /* general objects symbol table, i.e. for xfig2, dfi,at */

   char *name;
   struct namelist *components; /* may be an object list later */
   struct object *parent;


   struct namelist *operations;

  /* position in file of the object name */

   int start_pos;
   int end_pos;
};

struct operation
{
   char *name;
   struct namelist *components;
   struct operaton *parent;

   struct namelist *inputs; 
   struct namelist *outputs;
   int start_pos;
   int end_pos;
};
   
   
#endif