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# include <u.h>
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# include <libc.h>
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# include <ctype.h>
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# include <bio.h>
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# define PP 1
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# define CWIDTH 8
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# define CMASK 0377
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# define NCH 256
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# define TOKENSIZE 1000
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# define DEFSIZE 40
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# define DEFCHAR 1000
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# define STARTCHAR 100
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# define STARTSIZE 256
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# define CCLSIZE 1000
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# define TREESIZE 1000
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# define NSTATES 500
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# define MAXPOS 2500
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# define NTRANS 2000
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# define NOUTPUT 5000
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# define NACTIONS 100
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# define ALITTLEEXTRA 30
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# define RCCL NCH+90
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# define RNCCL NCH+91
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# define RSTR NCH+92
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# define RSCON NCH+93
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# define RNEWE NCH+94
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# define FINAL NCH+95
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# define RNULLS NCH+96
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# define RCAT NCH+97
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# define STAR NCH+98
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# define PLUS NCH+99
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# define QUEST NCH+100
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# define DIV NCH+101
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# define BAR NCH+102
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# define CARAT NCH+103
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# define S1FINAL NCH+104
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# define S2FINAL NCH+105
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# define DEFSECTION 1
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# define RULESECTION 2
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# define ENDSECTION 5
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# define TRUE 1
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# define FALSE 0
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# define PC 1
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# define PS 1
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# ifdef DEBUG
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# define LINESIZE 110
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extern int yydebug;
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extern int debug;		/* 1 = on */
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extern int charc;
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# endif
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# ifdef DEBUG
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extern int	freturn(int);
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# else
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# define freturn(s) s
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# endif
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extern int sargc;
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extern char **sargv;
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extern uchar buf[520];
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extern int yyline;		/* line number of file */
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extern char *yyfile;		/* file name of file */
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extern int sect;
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extern int eof;
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extern int lgatflg;
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extern int divflg;
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extern int funcflag;
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extern int pflag;
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extern int casecount;
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extern int chset;	/* 1 = char set modified */
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extern Biobuf *fin, fout, *fother;
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extern int foutopen;
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extern int errorf;
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extern int fptr;
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extern char *cname;
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extern int prev;	/* previous input character */
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extern int pres;	/* present input character */
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extern int peek;	/* next input character */
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extern int *name;
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extern int *left;
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extern int *right;
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extern int *parent;
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extern uchar **ptr;
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extern uchar *nullstr;
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extern int tptr;
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extern uchar pushc[TOKENSIZE];
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extern uchar *pushptr;
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extern uchar slist[STARTSIZE];
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extern uchar *slptr;
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extern uchar **def, **subs, *dchar;
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extern uchar **sname, *stchar;
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extern uchar *ccl;
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extern uchar *ccptr;
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extern uchar *dp, *sp;
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extern int dptr, sptr;
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extern uchar *bptr;		/* store input position */
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extern uchar *tmpstat;
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extern int count;
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extern int **foll;
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extern int *nxtpos;
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extern int *positions;
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extern int *gotof;
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extern int *nexts;
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extern uchar *nchar;
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extern int **state;
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extern int *sfall;		/* fallback state num */
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extern uchar *cpackflg;		/* true if state has been character packed */
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extern int *atable, aptr;
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extern int nptr;
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extern uchar symbol[NCH];
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extern uchar cindex[NCH];
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extern int xstate;
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extern int stnum;
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extern int ccount;
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extern uchar match[NCH];
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extern uchar extra[NACTIONS];
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extern uchar *pcptr, *pchar;
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extern int pchlen;
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extern int nstates, maxpos;
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extern int yytop;
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extern int report;
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extern int ntrans, treesize, outsize;
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extern long rcount;
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extern int *verify, *advance, *stoff;
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extern int scon;
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extern uchar *psave;
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extern void	acompute(int);
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extern void	add(int **, int);
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extern void	allprint(int);
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extern void	cclinter(int);
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extern void	cgoto(void);
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extern void	cfoll(int);
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extern int	cpyact(void);
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extern int	dupl(int);
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extern void	error(char *,...);
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extern void	first(int);
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extern void	follow(int);
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extern int	gch(void);
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extern uchar	*getl(uchar *);
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extern void	layout(void);
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extern void	lgate(void);
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extern int	lookup(uchar *, uchar **);
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extern int	member(int, uchar *);
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extern void	mkmatch(void);
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extern int	mn0(int);
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extern int	mn1(int, int);
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extern int	mnp(int, void*);
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extern int	mn2(int, int, uintptr);
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extern void	munputc(int);
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extern void	munputs(uchar *);
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extern void	*myalloc(int, int);
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extern void	nextstate(int, int);
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extern int	notin(int);
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extern void	packtrans(int, uchar *, int *, int, int);
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extern void	padd(int **, int);
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extern void	pccl(void);
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extern void	pfoll(void);
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extern void	phead1(void);
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extern void	phead2(void);
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extern void	pstate(int);
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extern void	ptail(void);
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extern void	sect1dump(void);
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extern void	sect2dump(void);
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extern void	statistics(void);
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extern void	stprt(int);
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extern void	strpt(uchar *);
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extern void	treedump(void);
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extern int	usescape(int);
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extern void	warning(char *,...);
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extern int	yyparse(void);
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extern void	yyerror(char *);