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struct  tmpfaddr	{	/* /tmp file address for strings and macros */
	filep	b;	/* block number [1:NBLIST] */
	int	o;	/* in block offset [0:127] */
			};

struct  d	{
	struct	tmpfaddr op;
	int	dnl,dimac,ditrap,ditf,alss,blss,nls,mkline,maxl,hnl,curd;
		};


struct  s	{
	int	nargs;
	struct s *pframe;
	struct tmpfaddr pip;
	int	macbcnt;
	int	ppendt;
	int	pCH0;
	int	*pRP;
	int	*pAP;
	int	*pCP;
	int	pch;
	int	pcstkl;
		};


struct names	{	/* name table structure */
	int ename;
	union	{
	    int (*f)();		/* function call (request) */
	    unsigned val;	/* value (macro address) */
		} vv
	};

struct datablock	{	/* nroff/troff data area (for compaction) */
	int Dr[NN+1];
	struct names Dnametab[NM+1];
	int Dnlist[NTRAP], Dmlist[NTRAP];
	int Dvlist[NN], Dinc[NN], Dfmt[NN];
	char Dtrtab[256];
	unsigned Dblist[NBLIST+1];
		};

struct dnames	{	/* name table structure - for defines in ni.c */
	int ename;
/*	union	{	*/
	    int (*xf)();	/* function call (request) */
/*	    unsigned val;	/* value (macro address) */
/*		} vv	*/
	};

struct ddatablock	{	/* nroff/troff data area (for compaction) */
	int Dr[NN+1];
	struct dnames xDnametab[NM+1];
	int Dnlist[NTRAP], Dmlist[NTRAP];
	int Dvlist[NN], Dinc[NN], Dfmt[NN];
	char Dtrtab[256];
	unsigned Dblist[NBLIST+1];
		};

struct envblock	{	/* head of saved environment data block */
	int Eics;
	int Eic;
	int Eicf;
	int Echbits;
	int Enmbits;
	int Eapts;
	int Eapts1;
	int Epts;
	int Epts1;
	int Efont;
	int Efont1;
	int Esps;
#ifndef NROFF
	int Espacesz;
	int Espbits;
#endif
	int Elss;
	int Elss1;
	int Els;
	int Els1;
	int Ell;
	int Ell1;
	int Elt;
	int Elt1;
	int Ead;
	int Enms;
	int Endf;
	int Efi;
	int Ecc;
	int Ec2;
	int Eohc;
	int Ehyf;
	int Ehyoff;
	int Eun1;
	int Etabc;
	int Edotc;
	int Eadsp;
	int Eadrem;
	int Elastl;
	int Enel;
	int Eadmod;
	int *Ewordp;
	int Espflg;
	int *Elinep;
	int *Ewdend;
	int *Ewdstart;
	int Ewne;
	int Ene;
	int Enc;
	int Enb;
	int Elnmod;
	int Enwd;
	int Enn;
	int Eni;
	int Eul;
	int Ecu;
	int Ece;
	int Ein;
	int Ein1;
	int Eun;
	int Ewch;
	int Ependt;
	int *Ependw;
	int Ependnf;
	int Espread;
	int Eit;
	int Eitmac;
	int Elnsize;
	int *Ehyptr[NHYP];
	int Etabtab[NTAB];
	int Eline[LNSIZE];
	int Eword[WDSIZE];
		};	/* end of saved environment block */



#define Habs(i)	(((int)i < 0) ? -i : i)	/* abs func for v_* */

#define v_pn	vlist[abs(HASH(PAIR('%',0),NN))]
#define v_nl	vlist[abs(HASH(PAIR('n','l'),NN))]
#define v_yr	vlist[abs(HASH(PAIR('y','r'),NN))]
#define v_hp	vlist[abs(HASH(PAIR('h','p'),NN))]
#define v_ct	vlist[abs(HASH(PAIR('c','t'),NN))]
#define v_dn	vlist[abs(HASH(PAIR('d','n'),NN))]
#define v_mo	vlist[abs(HASH(PAIR('m','o'),NN))]
#define v_dy	vlist[abs(HASH(PAIR('d','y'),NN))]
#define v_dw	vlist[abs(HASH(PAIR('d','w'),NN))]
#define v_ln	vlist[abs(HASH(PAIR('l','n'),NN))]
#define v_dl	vlist[abs(HASH(PAIR('d','l'),NN))]
#define v_st	vlist[abs(HASH(PAIR('s','t'),NN))]
#define v_sb	vlist[abs(HASH(PAIR('s','b'),NN))]

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