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#define MAXSPECHARS 	512
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#define MAXTOKENSIZE	128
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#define CHARLIB	"/sys/lib/troff/font/devutf/charlib"
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extern int debug;
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extern int fontsize;
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extern int fontpos;
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extern int resolution;	/* device resolution, goobies per inch */
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extern int minx;		/* minimum x motion */
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extern int miny;		/* minimum y motion */
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extern char devname[];
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extern int devres;
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extern int unitwidth;
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extern char *printdesclang;
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extern char *encoding;
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extern int fontmnt;
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extern char **fontmtab;
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extern int curtrofffontid;	/* index into trofftab of current troff font */
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extern int troffontcnt;
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extern BOOLEAN drawflag;
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struct specname {
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	char *str;
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	struct specname *next;
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};
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/* character entries for special characters (those pointed
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 * to by multiple character names, e.g. \(mu for multiply.
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 */
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struct charent {
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	char postfontid;	/* index into pfnamtab */
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	char postcharid;	/* e.g., 0x00 */
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	short troffcharwidth;
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	char *name;
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	struct charent *next;
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};
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extern struct charent **build_char_list;
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extern int build_char_cnt;
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struct pfnament {
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	char *str;
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	int used;
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};
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/* these entries map troff character code ranges to
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 * postscript font and character ranges.
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 */
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struct psfent {
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	int start;
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	int end;
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	int offset;
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	int psftid;
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};
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struct troffont {
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	char *trfontid;		/* the common troff font name e.g., `R' */
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	BOOLEAN special;	/* flag says this is a special font. */
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	int spacewidth;
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	int psfmapsize;
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	struct psfent *psfmap;
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	struct charent *charent[NUMOFONTS][FONTSIZE];
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};
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extern struct troffont *troffontab;
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extern struct charent spechars[];
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/** prototypes **/
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void initialize(void);
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void mountfont(int, char*);
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int findtfn(char *, int);
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void runeout(Rune);
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void specialout(char *);
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long nametorune(char *);
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void conv(Biobufhdr *);
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void hgoto(int);
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void vgoto(int);
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void hmot(int);
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void vmot(int);
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void draw(Biobufhdr *);
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void devcntl(Biobufhdr *);
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void notavail(char *);
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void error(int, char *, ...);
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void loadfont(int, char *);
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void flushtext(void);
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void t_charht(int);
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void t_slant(int);
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void startstring(void);
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void endstring(void);
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BOOLEAN pageon(void);
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void setpsfont(int, int);
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void settrfont(void);
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int hash(char *, int);
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BOOLEAN readDESC(void);
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void finish(void);
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void ps_include(Biobufhdr *, Biobufhdr *, int, int,
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	int, int, double, double, double, double,
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	double, double, double);
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void picture(Biobufhdr *, char *);
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void beginpath(char*, int);
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void drawpath(char*, int);