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pcre++.h

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/*
 *
 *  $Id: pcre++.h,v 1.1.1.1 2001/12/30 04:01:36 zarahg Exp $
 * 
 *  This file  is part of the  NABOU  Intrusion Detection System.
 *
 *  By  accessing  this software,  NABOU, you  are  duly informed
 *  of and agree to be  bound by the  conditions  described below
 *  in this notice:
 *
 *  This software product,  NABOU,  is developed by Thomas Linden
 *  and   copyrighted (C) 1999-2002   by  Thomas Linden, with all
 *  rights reserved.
 *
 *  There  is no charge for NABOU software.  You can redistribute
 *  it and/or modify it under the terms of the GNU General Public
 *  License, which is incorporated by reference herein.
 *
 *  NABOU is distributed WITHOUT ANY WARRANTY, IMPLIED OR EXPRESS,
 *  OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE or that
 *  the use of it will not infringe on any third party's intellec-
 *  tual property rights.
 *
 *  You should have received a copy of the GNU General Public
 *  License along with NABOU.  Copies can also be obtained from:
 *
 *    http://www.gnu.org/copyleft/gpl.html
 *
 *  or by writing to:
 *
 *  Free Software Foundation, Inc.
 *  59 Temple Place, Suite 330
 *  Boston, MA 02111-1307
 *  USA
 *
 *  Or contact:
 *
 *   "Thomas Linden" <tom@nabou.org>
 *
 *
 */

#ifndef HAVE_PCRE_PP_H
#define HAVE_PCRE_PP_H

#include <string>
#include <vector>

extern "C" {
#include <pcre.h>
}

#include "exception.h"

#include "config.h"



typedef vector<string>::iterator ResultIterator;

typedef vector<string> ResultSet;

class Pcre {
 private:
  string _expression;         /* the given regular expression */
  pcre *p_pcre;              /* pcre object pointer */
  pcre_extra *p_pcre_extra;  /* stuff required by pcre lib */
  int sub_len;
  int *sub_vec;
  int erroffset;
  char *err_str;
  ResultSet *resultset;   /* store substrings, if any */

  /* reset all counters and free objects, prepare for another search */
  void reset();

  /* compile the pattern */
  void Compile(int flags);

  /* do the actual search, will be called by the public ::search(..) methods */
  bool dosearch(const string& stuff, int OffSet);

 public:
  bool did_match;            
  int  num_matches;          
  Pcre(const string& expression);

  Pcre(const string& expression, const string& flags);

  Pcre(Pcre &P);

  const Pcre& operator = (const string& expression); 

  ~Pcre();

  bool search(const string& stuff);

  bool search(const string& stuff, int OffSet);

  ResultSet* get_sub_strings();

  string get_match(int pos);

  int get_match_start(int pos);

  int get_match_end(int pos);

  bool matched() { return did_match; };

  int  matches() { return num_matches; };
}; 


/*
 * Register exceptions of Pcre:: class
 */
class PcreException : public Exception {
 private:
  int errnum;
 public:
  PcreException(int num);
  PcreException(const string& msg);
};

#endif

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