plan9fox/sys/src/cmd/spin/tl.h

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/***** tl_spin: tl.h *****/
/* Copyright (c) 1995-2003 by Lucent Technologies, Bell Laboratories. */
/* All Rights Reserved. This software is for educational purposes only. */
/* No guarantee whatsoever is expressed or implied by the distribution of */
/* this code. Permission is given to distribute this code provided that */
/* this introductory message is not removed and no monies are exchanged. */
/* Software written by Gerard J. Holzmann. For tool documentation see: */
/* http://spinroot.com/ */
/* Send all bug-reports and/or questions to: bugs@spinroot.com */
/* Based on the translation algorithm by Gerth, Peled, Vardi, and Wolper, */
/* presented at the PSTV Conference, held in 1995, Warsaw, Poland 1995. */
#include <stdio.h>
#include <string.h>
typedef struct Symbol {
char *name;
struct Symbol *next; /* linked list, symbol table */
} Symbol;
typedef struct Node {
short ntyp; /* node type */
struct Symbol *sym;
struct Node *lft; /* tree */
struct Node *rgt; /* tree */
struct Node *nxt; /* if linked list */
} Node;
typedef struct Graph {
Symbol *name;
Symbol *incoming;
Symbol *outgoing;
Symbol *oldstring;
Symbol *nxtstring;
Node *New;
Node *Old;
Node *Other;
Node *Next;
unsigned char isred[64], isgrn[64];
unsigned char redcnt, grncnt;
unsigned char reachable;
struct Graph *nxt;
} Graph;
typedef struct Mapping {
char *from;
Graph *to;
struct Mapping *nxt;
} Mapping;
enum {
ALWAYS=257,
AND, /* 258 */
EQUIV, /* 259 */
EVENTUALLY, /* 260 */
FALSE, /* 261 */
IMPLIES, /* 262 */
NOT, /* 263 */
OR, /* 264 */
PREDICATE, /* 265 */
TRUE, /* 266 */
U_OPER, /* 267 */
V_OPER /* 268 */
#ifdef NXT
, NEXT /* 269 */
#endif
};
Node *Canonical(Node *);
Node *canonical(Node *);
Node *cached(Node *);
Node *dupnode(Node *);
Node *getnode(Node *);
Node *in_cache(Node *);
Node *push_negation(Node *);
Node *right_linked(Node *);
Node *tl_nn(int, Node *, Node *);
Symbol *tl_lookup(char *);
Symbol *getsym(Symbol *);
Symbol *DoDump(Node *);
char *emalloc(int); /* in main.c */
int anywhere(int, Node *, Node *);
int dump_cond(Node *, Node *, int);
int hash(char *); /* in sym.c */
int isalnum_(int); /* in spinlex.c */
int isequal(Node *, Node *);
int tl_Getchar(void);
void *tl_emalloc(int);
void a_stats(void);
void addtrans(Graph *, char *, Node *, char *);
void cache_stats(void);
void dump(Node *);
void exit(int);
void Fatal(char *, char *);
void fatal(char *, char *);
void fsm_print(void);
void releasenode(int, Node *);
void tfree(void *);
void tl_explain(int);
void tl_UnGetchar(void);
void tl_parse(void);
void tl_yyerror(char *);
void trans(Node *);
#define ZN (Node *)0
#define ZS (Symbol *)0
#define Nhash 255 /* must match size in spin.h */
#define True tl_nn(TRUE, ZN, ZN)
#define False tl_nn(FALSE, ZN, ZN)
#define Not(a) push_negation(tl_nn(NOT, a, ZN))
#define rewrite(n) canonical(right_linked(n))
typedef Node *Nodeptr;
#define YYSTYPE Nodeptr
#define Debug(x) { if (tl_verbose) printf(x); }
#define Debug2(x,y) { if (tl_verbose) printf(x,y); }
#define Dump(x) { if (tl_verbose) dump(x); }
#define Explain(x) { if (tl_verbose) tl_explain(x); }
#define Assert(x, y) { if (!(x)) { tl_explain(y); \
Fatal(": assertion failed\n",(char *)0); } }