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/*
** $Id: lpcode.h $
*/
#if !defined(lpcode_h)
#define lpcode_h
#include "lua.h"
#include "lptypes.h"
#include "lptree.h"
#include "lpvm.h"
int tocharset (TTree *tree, Charset *cs);
int checkaux (TTree *tree, int pred);
int fixedlen (TTree *tree);
int hascaptures (TTree *tree);
int lp_gc (lua_State *L);
Instruction *compile (lua_State *L, Pattern *p);
void realloccode (lua_State *L, Pattern *p, int nsize);
int sizei (const Instruction *i);
#define PEnullable 0
#define PEnofail 1
/*
** nofail(t) implies that 't' cannot fail with any input
*/
#define nofail(t) checkaux(t, PEnofail)
/*
** (not nullable(t)) implies 't' cannot match without consuming
** something
*/
#define nullable(t) checkaux(t, PEnullable)
#endif
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