/*****************************************************************/
/*    NAME: Michael Benjamin                                     */
/*    ORGN: Dept of Mechanical Eng / CSAIL, MIT Cambridge MA     */
/*    FILE: ConditionalParam.cpp                                 */
/*    DATE: October 2006                                         */
/*                                                               */
/* This file is part of IvP Helm Core Libs                       */
/*                                                               */
/* IvP Helm Core Libs is free software: you can redistribute it  */
/* and/or modify it under the terms of the Lesser GNU General    */
/* Public License as published by the Free Software Foundation,  */
/* either version 3 of the License, or (at your option) any      */
/* later version.                                                */
/*                                                               */
/* IvP Helm Core Libs is distributed in the hope that it will    */
/* be useful but WITHOUT ANY WARRANTY; without even the implied  */
/* warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR       */
/* PURPOSE. See the Lesser GNU General Public License for more   */
/* details.                                                      */
/*                                                               */
/* You should have received a copy of the Lesser GNU General     */
/* Public License along with MOOS-IvP.  If not, see              */
/* <http://www.gnu.org/licenses/>.                               */
/*****************************************************************/

#include <iostream>
#include "ConditionalParam.h"
#include "MBUtils.h"

using namespace std;

//------------------------------------------------------ 
// Procedure: setFromString
//
//    "param = val [state = true]"


bool ConditionalParam::setFromString(const string& giv_str)
{
  string str;

  if(m_comment_header == "")
    str = giv_str;
  else
    str = stripComment(giv_str, m_comment_header);

  str = stripBlankEnds(str);

  int len = str.length();
  int pos = str.find_last_of('[');
  if(str[len-1] != ']')
    return(false);
  if(pos <= 0)
    return(false);

  string param_str, condi_str;

  param_str.assign(str, 0, pos-1);
  param_str = stripBlankEnds(param_str);

  // Assuming from above the '[' is at pos, and ']' at len-1
  // strip off the brackets here.
  condi_str.assign(str, pos+1, len-2);

  int eqpos = param_str.find('=');
  int plen  = param_str.length();
  
  // if '=' not present or in first or last position, ret false
  if((eqpos <= 0) || (eqpos == len-1))
    return(false);
  
  m_parameter.assign(param_str, 0, eqpos-1);
  m_parameter = stripBlankEnds(m_parameter);

  m_param_val.assign(param_str, eqpos+1, plen-1);
  m_param_val = stripBlankEnds(m_param_val);
    
  m_ok = true;
  return(true);
}


//------------------------------------------------------ 
// Procedure: setFromString
// 
//    "param", "val [state = true]"


bool ConditionalParam::setFromString(const string& param_str,
				     const string& value_str)
{
  string str;

  if(m_comment_header == "")
    str = value_str;
  else
    str = stripComment(value_str, m_comment_header);

  str = stripBlankEnds(str);

  int len = str.length();
  int pos = str.find_last_of('[');
  if(str[len-1] != ']')
    return(false);
  if(pos <= 0)
    return(false);


  m_parameter = stripBlankEnds(param_str);

  m_param_val.assign(str, 0, pos-1);
  m_param_val = stripBlankEnds(m_param_val);

  // Assuming from above the '[' is at pos, and ']' at len-1
  // strip off the brackets here.
  string condi_str;
  condi_str.assign(str, pos+1, len-2);

  m_condition.setCondition(condi_str);

    
  m_ok = true;
  return(true);
}