ref: b8d6afa6deedba9d6c33b03e1329094108783430
dir: lu9-lpeg/lpcode.h
/* ** $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