text.h

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/**********************************************************************
text.h - Declaration and Implementation of OBText

Copyright (C) 2008 by Chris Morley

This file is part of the Open Babel project.
For more information, see <http://openbabel.org/>

This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation version 2 of the License.

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 General Public License for more details.
***********************************************************************/

#ifndef OB_TEXT_H
#define OB_TEXT_H

#include <openbabel/babelconfig.h>
#include <openbabel/base.h>

namespace OpenBabel
{
class OBText : public OBBase
{
private:
  std::string txt;
public:
  //Constructors
  OBText(){}
  OBText(const std::string& text) :txt(text) {}

  std::string GetText()const { return txt; }

  std::string GetText(std::string::size_type& pos, bool ToInsertOnly=false) const
  {
    std::string::size_type oldpos = pos;
    std::string::size_type newpos = txt.find("OPENBABEL_INSERT", pos);
    if(newpos== std::string::npos)//not found: return rest of txt
    {
      if(ToInsertOnly)
        return("");
      pos = 0;
      return txt.substr(oldpos);
    }

    newpos = txt.rfind('\n', newpos); //to end of previous line
    pos = txt.find("\n", newpos+1)+1; //to past end of line, or 0
    return txt.substr(oldpos, newpos-oldpos);
  }

  void SetText(const std::string& text){ txt = text; }
};

}//namespace
#endif //OB_TEXT_H