dynashell_regex.cxx

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////////////////////////////////////////////////////////////////////////////////
//
// Package:   Dynamixel
//
// Program:   dynashell
//
// File:      dynashell_regex.cxx
//
/*! \file
 *
 * $LastChangedDate: 2015-01-12 10:56:06 -0700 (Mon, 12 Jan 2015) $
 * $Rev: 3845 $
 *
 * \brief The Dynamixel Shell Regular Expression Class.
 *
 * \author Robin Knight (robin.knight@roadnarrows.com)
 *
 * \copyright
 *   \h_copy 2012-2017. RoadNarrows LLC.\n
 *   http://www.roadnarrows.com\n
 *   All Rights Reserved
 */
/*
 * @EulaBegin@
 * 
 * Unless otherwise stated explicitly, all materials contained are copyrighted
 * and may not be used without RoadNarrows LLC's written consent,
 * except as provided in these terms and conditions or in the copyright
 * notice (documents and software) or other proprietary notice provided with
 * the relevant materials.
 * 
 * IN NO EVENT SHALL THE AUTHOR, ROADNARROWS LLC, OR ANY 
 * MEMBERS/EMPLOYEES/CONTRACTORS OF ROADNARROWS OR DISTRIBUTORS OF THIS SOFTWARE
 * BE LIABLE TO ANY PARTY FOR DIRECT, INDIRECT, SPECIAL, INCIDENTAL, OR
 * CONSEQUENTIAL DAMAGES ARISING OUT OF THE USE OF THIS SOFTWARE AND ITS
 * DOCUMENTATION, EVEN IF THE AUTHORS OR ANY OF THE ABOVE PARTIES HAVE BEEN
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////////////////////////////////////////////////////////////////////////////////


#include <sys/types.h>
#include <stdio.h>
#include <string.h>
#include <unistd.h>
#include <regex.h>
#include <string>

#include <rnr/rnrconfig.h>
#include <rnr/log.h>

#include "dynashell_regex.h"


using namespace std;


// ----------------------------------------------------------------------------
// Class RegEx
// ----------------------------------------------------------------------------

/*!
 * \brief Compile a regular expression.
 */
void RegEx::Compile()
{
  int errcode;

  memset(&m_regex, 0, sizeof(m_regex));

  if( m_strRegEx.length() == 0 )
  {
    m_bIsValid = false;
  }
  else if( (errcode = regcomp(&m_regex, m_strRegEx.c_str(), REG_NOSUB)) == 0 )
  {
    m_bIsValid = true;
  }
  else
  {
    char buf[80];
    regerror(errcode, &m_regex, buf, sizeof(buf));
    LOGERROR("%s.", buf);
    m_bIsValid = false;
  }
}