43 lines
848 B
C
43 lines
848 B
C
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/*
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** $Id: lpcode.h,v 1.7 2015/06/12 18:24:45 roberto Exp $
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*/
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#if !defined(lpcode_h)
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#define lpcode_h
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#include "lua.h"
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#include "lptypes.h"
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#include "lptree.h"
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#include "lpvm.h"
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int tocharset (TTree *tree, Charset *cs);
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int checkaux (TTree *tree, int pred);
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int fixedlenx (TTree *tree, int count, int len);
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int hascaptures (TTree *tree);
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int lp_gc (lua_State *L);
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Instruction *compile (lua_State *L, Pattern *p);
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void realloccode (lua_State *L, Pattern *p, int nsize);
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int sizei (const Instruction *i);
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#define PEnullable 0
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#define PEnofail 1
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/*
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** nofail(t) implies that 't' cannot fail with any input
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*/
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#define nofail(t) checkaux(t, PEnofail)
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/*
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** (not nullable(t)) implies 't' cannot match without consuming
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** something
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*/
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#define nullable(t) checkaux(t, PEnullable)
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#define fixedlen(t) fixedlenx(t, 0, 0)
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#endif
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