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Initial import of svn+ssh:://svn.icir.org/bro/trunk/bro as of r7088

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Robin Sommer 2010-09-27 20:42:30 -07:00
commit 61757ac78b
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src/EquivClass.h Normal file
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// $Id: EquivClass.h 6219 2008-10-01 05:39:07Z vern $
//
// See the file "COPYING" in the main distribution directory for copyright.
#ifndef equiv_class_h
#define equiv_class_h
#include <stdio.h>
#include "CCL.h"
class EquivClass {
public:
EquivClass(int size);
~EquivClass();
void UniqueChar(int sym);
void CCL_Use(CCL* ccl);
// All done adding character usage info - generate equivalence
// classes. Returns number of classes.
int BuildECs();
void ConvertCCL(CCL* ccl);
int IsRep(int sym) const { return rep[sym] == sym; }
int EquivRep(int sym) const { return rep[sym]; }
int SymEquivClass(int sym) const { return equiv_class[sym]; }
int* EquivClasses() const { return equiv_class; }
int NumSyms() const { return size; }
int NumClasses() const { return num_ecs; }
void Dump(FILE* f);
int Size() const;
protected:
int size; // size of character set
int num_ecs; // size of equivalence classes
int* fwd; // forward list of different classes
int* bck; // backward list
int* equiv_class; // symbol's equivalence class
int* rep; // representative for symbol's equivalence class
int* ccl_flags;
int ec_nil, no_class, no_rep;
};
#endif