102      */

   102      */

   103     symbol_c *next_nf(void);

   103     symbol_c *next_nf(void);

   104 

   104 

   105     /* Search for the value passed to the parameter named <param_name>...  */

   105     /* Search for the value passed to the parameter named <param_name>...  */

   106     symbol_c *search_f(symbol_c *param_name);

   106     symbol_c *search_f(symbol_c *param_name);

   107 

   108 

   108     /* Returns the value being passed to the current parameter. */

   109     /* Returns the value being passed to the current parameter. */

   109     symbol_c *get_current_value(void);

   110     symbol_c *get_current_value(void);

   110 

   111 

   111 

   112