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-rw-r--r--src/cmd/svgpic/pic.h222
1 files changed, 222 insertions, 0 deletions
diff --git a/src/cmd/svgpic/pic.h b/src/cmd/svgpic/pic.h
new file mode 100644
index 00000000..928d38dd
--- /dev/null
+++ b/src/cmd/svgpic/pic.h
@@ -0,0 +1,222 @@
+#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];
+
+#undef sprintf /* Snow Leopard */
+
+#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")