ref: a3f2d6d23ed1be69fee607bdedadc0438fd01305
dir: /sys/src/cmd/pic/pic.h/
#ifndef PI #define PI 3.1415926535897932384626433832795028841971693993751 #endif #define MAXWID 8.5 /* default limits max picture to 8.5 x 11; */ #define MAXHT 11 /* change to taste without peril */ #define dprintf if(dbg)printf extern void yyerror(char *); extern char errbuf[200]; #define ERROR sprintf(errbuf, #define FATAL ), yyerror(errbuf), exit(1) #define WARNING ), yyerror(errbuf) #define DEFAULT 0 #define HEAD1 1 #define HEAD2 2 #define HEAD12 (HEAD1+HEAD2) #define INVIS 4 #define CW_ARC 8 /* clockwise arc */ #define DOTBIT 16 /* line styles */ #define DASHBIT 32 #define FILLBIT 64 /* gray-fill on boxes, etc. */ #define NOEDGEBIT 128 /* no edge on filled object */ #define CENTER 01 /* text attributes */ #define LJUST 02 #define RJUST 04 #define ABOVE 010 #define BELOW 020 #define SPREAD 040 #define SCALE 1.0 /* default scale: units/inch */ #define WID 0.75 /* default width for boxes and ellipses */ #define WID2 0.375 #define HT 0.5 /* default height and line length */ #define HT2 (HT/2) #define HT5 (HT/5) #define HT10 (HT/10) /* these have to be like so, so that we can write */ /* things like R & V, etc. */ #define H 0 #define V 1 #define R_DIR 0 #define U_DIR 1 #define L_DIR 2 #define D_DIR 3 #define ishor(n) (((n) & V) == 0) #define isvert(n) (((n) & V) != 0) #define isright(n) ((n) == R_DIR) #define isleft(n) ((n) == L_DIR) #define isdown(n) ((n) == D_DIR) #define isup(n) ((n) == U_DIR) typedef float ofloat; /* for o_val[] in obj; could be double */ typedef struct obj { /* stores various things in variable length */ int o_type; int o_count; /* number of things */ int o_nobj; /* index in objlist */ int o_mode; /* hor or vert */ float o_x; /* coord of "center" */ float o_y; int o_nt1; /* 1st index in text[] for this object */ int o_nt2; /* 2nd; difference is #text strings */ int o_attr; /* HEAD, CW, INVIS, etc., go here */ int o_size; /* linesize */ int o_nhead; /* arrowhead style */ struct symtab *o_symtab; /* symtab for [...] */ float o_ddval; /* value of dot/dash expression */ float o_fillval; /* gray scale value */ ofloat o_val[1]; /* actually this will be > 1 in general */ /* type is not always FLOAT!!!! */ } obj; typedef union { /* the yacc stack type */ int i; char *p; obj *o; double f; struct symtab *st; } YYSTYPE; extern YYSTYPE yylval, yyval; struct symtab { char *s_name; int s_type; YYSTYPE s_val; struct symtab *s_next; }; typedef struct { /* attribute of an object */ int a_type; int a_sub; YYSTYPE a_val; } Attr; typedef struct { int t_type; /* CENTER, LJUST, etc. */ char t_op; /* optional sign for size changes */ char t_size; /* size, abs or rel */ char *t_val; } Text; #define String 01 #define Macro 02 #define File 04 #define Char 010 #define Thru 020 #define Free 040 typedef struct { /* input source */ int type; /* Macro, String, File */ char *sp; /* if String or Macro */ } Src; extern Src src[], *srcp; /* input source stack */ typedef struct { FILE *fin; char *fname; int lineno; } Infile; extern Infile infile[], *curfile; #define MAXARGS 20 typedef struct { /* argument stack */ char *argstk[MAXARGS]; /* pointers to args */ char *argval; /* points to space containing args */ } Arg; extern int dbg; extern obj **objlist; extern int nobj, nobjlist; extern Attr *attr; extern int nattr, nattrlist; extern Text *text; extern int ntextlist; extern int ntext; extern int ntext1; extern double curx, cury; extern int hvmode; extern int codegen; extern char *PEstring; char *tostring(char *); char *grow(char *, char *, int, int); double getfval(char *), getcomp(obj *, int), getblkvar(obj *, char *); YYSTYPE getvar(char *); struct symtab *lookup(char *), *makevar(char *, int, YYSTYPE); char *ifstat(double, char *, char *), *delimstr(char *), *sprintgen(char *); void forloop(char *var, double from, double to, int op, double by, char *_str); int setdir(int), curdir(void); void resetvar(void); void checkscale(char *); void pushsrc(int, char *); void copy(void); void copyuntil(char *); void copyfile(char *); void copydef(struct symtab *); void definition(char *); struct symtab *copythru(char *); int input(void); int unput(int); void extreme(double, double); extern double deltx, delty; extern int lineno; extern int synerr; extern double xmin, ymin, xmax, ymax; obj *leftthing(int), *boxgen(void), *circgen(int), *arcgen(int); obj *linegen(int), *splinegen(void), *movegen(void); obj *textgen(void), *plotgen(void); obj *troffgen(char *), *rightthing(obj *, int), *blockgen(obj *, obj *); obj *makenode(int, int), *makepos(double, double); obj *fixpos(obj *, double, double); obj *addpos(obj *, obj *), *subpos(obj *, obj *); obj *makebetween(double, obj *, obj *); obj *getpos(obj *, int), *gethere(void), *getfirst(int, int); obj *getlast(int, int), *getblock(obj *, char *); void savetext(int, char *); void makeiattr(int, int); void makevattr(char *); void makefattr(int type, int sub, double f); void maketattr(int, char *); void makeoattr(int, obj *); void makeattr(int type, int sub, YYSTYPE val); void printexpr(double); void printpos(obj *); void exprsave(double); void addtattr(int); void printlf(int, char *); struct pushstack { double p_x; double p_y; int p_hvmode; double p_xmin; double p_ymin; double p_xmax; double p_ymax; struct symtab *p_symtab; }; extern struct pushstack stack[]; extern int nstack; extern int cw; extern double errcheck(double, char *); #define Log10(x) errcheck(log10(x), "log") #define Exp(x) errcheck(exp(x), "exp") #define Sqrt(x) errcheck(sqrt(x), "sqrt")