#define OESC	'\\'
#define NESC	'!'
#define OLGR	'{'
#define NLGR	'<'
#define ORGR	'}'
#define NRGR	'>'

extern FILE *yyin;
extern int optarg;
extern int seen_lb;
extern int lb_lines;
extern int seen_array;
extern char *index ();

extern yywrap ();
extern parens ();
extern subst ();
extern char *strip ();