STK_DManager_Util.h

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/*--------------------------------------------------------------------*/
/*     Copyright (C) 2004-2011  Serge Iovleff

 This program is free software; you can redistribute it and/or modify
 it under the terms of the GNU Lesser General Public License as
 published by the Free Software Foundation; either version 2 of the
 License, or (at your option) any later version.

 This program 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
 GNU Lesser General Public License for more details.

 You should have received a copy of the GNU Lesser General Public
 License along with this program; if not, write to the
 Free Software Foundation, Inc.,
 59 Temple Place,
 Suite 330,
 Boston, MA 02111-1307
 USA

 Contact : Serge.Iovleff@stkpp.org
 */

/*
 * Project:  stkpp::DManager
 * created on: 12 juil. 2011
 * Purpose:  useful methods for processing dta, strings and i/o streams.
 * Author:   iovleff, serge.iovleff@stkpp.org
 *
 **/

#ifndef STK_DMANAGER_UTIL_H
#define STK_DMANAGER_UTIL_H

#include <list>

#include "../../STKernel/include/STK_Char.h"
#include "../../STKernel/include/STK_String_Util.h"
#include "../../STKernel/include/STK_Stream.h"

namespace STK
{

static const String STRING_EMPTY   = String();

static const String STRING_NL      = _T("\n");

static const String STRING_BLANK  = _T(" ");

static const String STRING_VAR  = _T("Var");

static const Char CHAR_COMMENT = _T('#');

static const Char CHAR_EQUAL = _T('=');

static const Char CHAR_BLANK = _T(' ');

static const Char CHAR_TAB = _T('\t');

static const Char CHAR_SEP = _T(',');

static const Char CHAR_OPENBRACKET = _T('[');

static const Char CHAR_CLOSEBRACKET = _T(']');

namespace DManager
{
bool checkStringToBoolean( String const& str);

bool StringToBoolean( String const& str);

void removeCharBeforeAndAfter( String & str, Char c );

String getField( istream& is, Char delimiter);

template<class TYPE>
void readList(String const& strBuffer, std::list<TYPE>& lst, Char sep = CHAR_SEP)
{
  // Declare an input string stream
  istringstream instream;
  // Use strBuffer as source of input.
  instream.str(strBuffer);
  // read the line
  do
  {
    // get field
    String strbuff = getField(instream, sep);
    // check if it is a blank field
    if (strbuff.empty()) {  break;}
    // append Data to the list
    TYPE value;
    if (stringToType(value, strbuff))
      lst.push_back(value);
    // TODO: else emit warning or Exception
  }
  while(1);
}

template<class TYPE>
void writeList( ostream& os, std::list<TYPE> const& lst, Char sep = CHAR_SEP)
{
  if (lst.empty()) return;
  typename std::list<TYPE>::const_iterator it = lst.begin();
  if (it == lst.end()) return;
  os << *it;
  it++;
  for ( ; it != lst.end(); it++)
  {
    os << sep << STRING_BLANK << *it;
  }
}


} // namespace DManager

} // namespace STK

#endif /* STK_DMANAGER_UTIL_H */