usr/src/cmd/eqn/e.h

#include <stdio.h>

#define FATAL   1
#define ROM     '1'
#define ITAL    '2'
#define BLD     '3'

#define VERT(n) ((((n)+1)/3)*3)
#define EFFPS(p)        ((p) >= 6 ? (p) : 6)

extern int      dbg;
extern int      ct;
extern int      lp[];
extern int      used[]; /* available registers */
extern int      ps;     /* dflt init pt size */
extern int      deltaps;        /* default change in ps */
extern int      gsize;  /* global size */
extern int      gfont;  /* global font */
extern int      ft;     /* dflt font */
extern FILE     *curfile;       /* current input file */
extern int      ifile;  /* input file number */
extern int      linect; /* line number in current file */
extern int      eqline; /* line where eqn started */
extern int      svargc;
extern char     **svargv;
extern int      eht[];
extern int      ebase[];
extern int      lfont[];
extern int      rfont[];
extern int      yyval;
extern int      *yypv;
extern int      yylval;
extern int      eqnreg, eqnht;
extern int      lefteq, righteq;
extern int      lastchar;       /* last character read by lex */
extern int      markline;       /* 1 if this EQ/EN contains mark or lineup */

typedef struct s_tbl {
        char    *name;
        char    *defn;
        struct s_tbl *next;
} tbl;