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1.1 ! root 1: #define dprintf if(dbg)printf ! 2: ! 3: #define DEFAULT 0 ! 4: ! 5: #define HEAD1 1 ! 6: #define HEAD2 2 ! 7: #define HEAD12 (HEAD1+HEAD2) ! 8: #define INVIS 4 ! 9: #define CW_ARC 8 /* clockwise arc */ ! 10: #define DOTBIT 16 ! 11: #define DASHBIT 32 ! 12: ! 13: #define CENTER 01 /* text attributes */ ! 14: #define LJUST 02 ! 15: #define RJUST 04 ! 16: #define ABOVE 010 ! 17: #define BELOW 020 ! 18: #define SPREAD 040 ! 19: #define FILL 0100 ! 20: ! 21: #define SCALE 1.0 /* default scale: units/inch */ ! 22: #define WID 0.75 /* default width for boxes and ellipses */ ! 23: #define WID2 0.375 ! 24: #define HT 0.5 /* default height and line length */ ! 25: #define HT2 0.25 /* because no floating init exprs! */ ! 26: #define HT5 0.1 ! 27: #define HT10 0.05 ! 28: ! 29: /* these have to be like so, so that we can write */ ! 30: /* things like R & V, etc. */ ! 31: #define H 0 ! 32: #define V 1 ! 33: #define R_DIR 0 ! 34: #define U_DIR 1 ! 35: #define L_DIR 2 ! 36: #define D_DIR 3 ! 37: #define ishor(n) (((n) & V) == 0) ! 38: #define isvert(n) (((n) & V) != 0) ! 39: #define isright(n) ((n) == R_DIR) ! 40: #define isleft(n) ((n) == L_DIR) ! 41: #define isdown(n) ((n) == D_DIR) ! 42: #define isup(n) ((n) == U_DIR) ! 43: ! 44: typedef struct Point { ! 45: float x; ! 46: float y; ! 47: }; ! 48: ! 49: typedef struct obj { /* stores various things in variable length */ ! 50: int o_type; ! 51: int o_count; /* number of things */ ! 52: int o_nobj; /* index in objlist */ ! 53: int o_mode; /* hor or vert */ ! 54: float o_x; /* coord of "center" */ ! 55: float o_y; ! 56: int o_nt1; /* 1st index in text[] for this object */ ! 57: int o_nt2; /* 2nd; difference is #text strings */ ! 58: int o_attr; /* HEAD, CW, INVIS go here */ ! 59: int o_size; /* linesize */ ! 60: int o_nhead; /* arrowhead style */ ! 61: struct symtab *o_symtab; /* symtab for [...] */ ! 62: float o_ddval; /* value of dot/dash expression */ ! 63: float o_val[1]; /* actually this will be > 1 in general */ ! 64: /* type is not always FLOAT!!!! */ ! 65: } obj; ! 66: ! 67: typedef union { /* the yacc stack type */ ! 68: int i; ! 69: char *p; ! 70: obj *o; ! 71: float f; ! 72: } YYSTYPE; ! 73: ! 74: extern YYSTYPE yylval, yyval; ! 75: ! 76: struct symtab { ! 77: char *s_name; ! 78: int s_type; ! 79: YYSTYPE s_val; ! 80: struct symtab *s_next; ! 81: }; ! 82: ! 83: typedef struct { /* attribute of an object */ ! 84: int a_type; ! 85: int a_sub; ! 86: YYSTYPE a_val; ! 87: } Attr; ! 88: ! 89: typedef struct { ! 90: int t_type; /* CENTER, LJUST, etc. */ ! 91: char t_op; /* optional sign for size changes */ ! 92: char t_size; /* size, abs or rel */ ! 93: char *t_val; ! 94: } Text; ! 95: ! 96: #define String 01 ! 97: #define Macro 02 ! 98: #define File 04 ! 99: #define Char 010 ! 100: #define Thru 020 ! 101: #define Free 040 ! 102: ! 103: typedef struct { /* input source */ ! 104: int type; /* Macro, String, File */ ! 105: char *sp; /* if String or Macro */ ! 106: } Src; ! 107: ! 108: extern Src src[], *srcp; /* input source stack */ ! 109: ! 110: typedef struct { ! 111: FILE *fin; ! 112: char *fname; ! 113: int lineno; ! 114: } Infile; ! 115: ! 116: extern Infile infile[], *curfile; ! 117: ! 118: #define MAXARGS 20 ! 119: typedef struct { /* argument stack */ ! 120: char *argstk[MAXARGS]; /* pointers to args */ ! 121: char *argval; /* points to space containing args */ ! 122: } Arg; ! 123: ! 124: extern int dbg; ! 125: extern obj **objlist; ! 126: extern int nobj, nobjlist; ! 127: extern Attr *attr; ! 128: extern int nattr, nattrlist; ! 129: extern Text *text; ! 130: extern int ntextlist; ! 131: extern int ntext; ! 132: extern int ntext1; ! 133: extern float curx, cury; ! 134: extern int hvmode; ! 135: extern int codegen; ! 136: extern char *malloc(), *realloc(), *tostring(), *grow(); ! 137: extern float getfval(), getcomp(), getblkvar(); ! 138: extern YYSTYPE getvar(); ! 139: extern struct symtab *lookup(), *makevar(); ! 140: extern char *ifstat(), *delimstr(), *sprintgen(); ! 141: ! 142: extern float deltx, delty; ! 143: extern int lineno; ! 144: extern int synerr; ! 145: ! 146: extern float xmin, ymin, xmax, ymax; ! 147: extern obj *leftthing(), *boxgen(), *circgen(), *arcgen(); ! 148: extern obj *linegen(), *splinegen(), *movegen(), *textgen(), *plotgen(); ! 149: extern obj *troffgen(), *rightthing(), *blockgen(); ! 150: extern obj *makenode(), *makepos(), *fixpos(), *addpos(), *subpos(), *makebetween(); ! 151: extern obj *getpos(), *gethere(), *getfirst(), *getlast(), *getblock(); ! 152: ! 153: struct pushstack { ! 154: float p_x; ! 155: float p_y; ! 156: int p_hvmode; ! 157: float p_xmin; ! 158: float p_ymin; ! 159: float p_xmax; ! 160: float p_ymax; ! 161: struct symtab *p_symtab; ! 162: }; ! 163: extern struct pushstack stack[]; ! 164: extern int nstack; ! 165: extern int cw; ! 166: ! 167: extern double errcheck(); ! 168: #define Log10(x) errcheck(log10(x), "log") ! 169: #define Exp(x) errcheck(exp(x), "exp") ! 170: #define Sqrt(x) errcheck(sqrt(x), "sqrt")
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