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#include <u.h>
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#include <libc.h>
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#include <bio.h>
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#include <ctype.h>
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enum
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{
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	Unbsp = 0x00A0,
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	Uprivate = 0xF000,
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	Uempty,	/* \& */
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	Uamp,	/* raw & */
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	Ult,		/* raw < */
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	Ugt,		/* raw > */
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	Utick,	/* raw ' */
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	Ubtick,	/* raw ` */
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	Uminus,	/* raw - */
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	Uspace,	/* raw space */
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	Upl,		/* symbol + */
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	Ueq,		/* symbol = */
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	Umi,		/* symbol - */
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	Uformatted,	/* start diverted output */
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	Uunformatted,	/* end diverted output */
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	UPI = 720,	/* units per inch */
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	UPX = 10,	/* units per pixel */
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	/* special input modes */
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	CopyMode = 1<<1,
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	ExpandMode = 1<<2,
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	ArgMode = 1<<3,
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	HtmlMode = 1<<4,
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	MaxLine = 1024,
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};
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Rune*	L(char*);
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void		addesc(Rune, int (*)(void), int);
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void		addraw(Rune*, void(*)(Rune*));
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void		addreq(Rune*, void(*)(int, Rune**), int);
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void		af(Rune*, Rune*);
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void		as(Rune*, Rune*);
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void		br(void);
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void		closehtml(void);
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Rune*	copyarg(void);
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void		delraw(Rune*);
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void		delreq(Rune*);
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void		ds(Rune*, Rune*);
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int		dv(int);
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int		e_nop(void);
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int		e_warn(void);
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void*	emalloc(uint);
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void*	erealloc(void*, uint);
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Rune*	erunesmprint(char*, ...);
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Rune*	erunestrdup(Rune*);
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char*	esmprint(char*, ...);
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char*	estrdup(char*);
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int		eval(Rune*);
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int		evalscale(Rune*, int);
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Rune*	getname(void);
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int		getnext(void);
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Rune*	getds(Rune*);
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Rune*	_getnr(Rune*);
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int		getnr(Rune*);
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int		getnrr(Rune*);
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int		getrune(void);
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Rune*	getqarg(void);
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Rune*	getline(void);
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void		hideihtml(void);
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void		html(Rune*, Rune*);
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void		htmlinit(void);
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void		ihtml(Rune*, Rune*);
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void		inputnotify(void(*)(void));
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void		itrap(void);
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void		itrapset(void);
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int		linefmt(Fmt*);
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void		nr(Rune*, int);
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void		_nr(Rune*, Rune*);
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void		out(Rune*);
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void		(*outcb)(Rune);
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void		outhtml(Rune*);
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void		outrune(Rune);
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void		outtrap(void);
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int		popinput(void);
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void		printds(int);
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int		pushinputfile(Rune*);
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void		pushinputstring(Rune*);
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int		pushstdin(void);
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int		queueinputfile(Rune*);
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int		queuestdin(void);
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void		r_nop(int, Rune**);
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void		r_warn(int, Rune**);
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Rune	*readline(int);
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void		reitag(void);
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void		renraw(Rune*, Rune*);
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void		renreq(Rune*, Rune*);
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void		run(void);
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void		runinput(void);
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int		runmacro(int, int, Rune**);
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void		runmacro1(Rune*);
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Rune*	rune2html(Rune);
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void		setlinenumber(Rune*, int);
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void		showihtml(void);
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void		sp(int);
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void		t1init(void);
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void		t2init(void);
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void		t3init(void);
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void		t4init(void);
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void		t5init(void);
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void		t6init(void);
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void		t7init(void);
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void		t8init(void);
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void		t9init(void);
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void		t10init(void);
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void		t11init(void);
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void		t12init(void);
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void		t13init(void);
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void		t14init(void);
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void		t15init(void);
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void		t16init(void);
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void		t17init(void);
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void		t18init(void);
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void		t19init(void);
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void		t20init(void);
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Rune	troff2rune(Rune*);
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void		unfont(void);
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void		ungetnext(Rune);
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void		ungetrune(Rune);
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void		unitag(void);
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void		warn(char*, ...);
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extern	int		backslash;
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extern	int		bol;
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extern	Biobuf	bout;
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extern	int		broke;
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extern	int		dot;
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extern	int		inputmode;
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extern	int		inrequest;
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extern	int		tick;
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extern	int		utf8;
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extern	int		verbose;
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extern	int		linepos;
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#define	runemalloc(n)	(Rune*)emalloc((n)*sizeof(Rune))
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#define	runerealloc(r, n)	(Rune*)erealloc(r, (n)*sizeof(Rune))
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#define	runemove(a, b, n)	memmove(a, b, (n)*sizeof(Rune))
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#pragma varargck type "L" void