text: // new(Symtab(), minimal-dimension)
  
  #include <stddef.h>
  
  % Class  Symtab: Object {
      const void ** buf;		// const void * buf [dim]
      size_t dim;				// current buffer dimension
      size_t count;			// # elements in buffer
  %
  	void install (_self, const Symbol @ entry);
  	Symbol @ screen (_self, const char * name, int lex);
  							// i/o functions return EOF on error
  	int save (const _self, const Var @ entry, const char * fnm);
  	int load (_self, Symbol @ entry, const char * fnm);
  %}
  