/*  * This file is part of the UCB release of Plan 9. It is subject to the license * terms in the LICENSE file found in the top-level directory of this * distribution and at http://akaros.cs.berkeley.edu/files/Plan9License. No * part of the UCB release of Plan 9, including this file, may be copied, * modified, propagated, or distributed except according to the terms contained * in the LICENSE file. */ #define MAXSPECHARS 	512#define MAXTOKENSIZE	128#define CHARLIB	"/sys/lib/troff/font/devutf/charlib" extern int debug;extern int fontsize;extern int fontpos;extern int resolution;	/* device resolution, goobies per inch */extern int minx;		/* minimum x motion */extern int miny;		/* minimum y motion */extern char devname[];extern int devres;extern int unitwidth;extern char *printdesclang;extern char *encoding;extern int fontmnt;extern char **fontmtab; extern int curtrofffontid;	/* index into trofftab of current troff font */extern int troffontcnt; extern BOOLEAN drawflag; struct specname {	char *str;	struct specname *next;}; /* character entries for special characters (those pointed * to by multiple character names, e.g. \(mu for multiply. */struct charent {	char postfontid;	/* index into pfnamtab */	char postcharid;	/* e.g., 0x00 */	short troffcharwidth;	char *name;	struct charent *next;}; extern struct charent **build_char_list;extern int build_char_cnt; struct pfnament {	char *str;	int used;}; /* these entries map troff character code ranges to * postscript font and character ranges. */struct psfent {	int start;	int end;	int offset;	int psftid;}; struct troffont {	char *trfontid;		/* the common troff font name e.g., `R' */	BOOLEAN special;	/* flag says this is a special font. */	int spacewidth;	int psfmapsize;	struct psfent *psfmap;	struct charent *charent[NUMOFONTS][FONTSIZE];}; extern struct troffont *troffontab;extern struct charent spechars[]; /** prototypes **/void initialize(void);void mountfont(int, char*);int findtfn(char *, int);void runeout(Rune);void specialout(char *);long nametorune(char *);void conv(Biobufhdr *);void hgoto(int);void vgoto(int);void hmot(int);void vmot(int);void draw(Biobufhdr *);void devcntl(Biobufhdr *);void notavail(char *);void error(int, char *, ...);void loadfont(int, char *);void flushtext(void);void t_charht(int);void t_slant(int);void startstring(void);void endstring(void);BOOLEAN pageon(void);void setpsfont(int, int);void settrfont(void);int hash(char *, int);BOOLEAN readDESC(void);void finish(void);void ps_include(Biobufhdr *, Biobufhdr *, int, int,	int, int, double, double, double, double,	double, double, double);void picture(Biobufhdr *, char *);void beginpath(char*, int);void drawpath(char*, int);