TypeStream-io.cpp

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/***************************************************************************
  tag: Peter Soetens  Wed Jan 18 14:11:39 CET 2006  TypeStream.cxx

                        TypeStream.cxx -  description
                           -------------------
    begin                : Wed January 18 2006
    copyright            : (C) 2006 Peter Soetens
    email                : peter.soetens@mech.kuleuven.be

 ***************************************************************************
 *   This library 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.                                             *
 *                                                                         *
 *   As a special exception, you may use this file as part of a free       *
 *   software library without restriction.  Specifically, if other files   *
 *   instantiate templates or use macros or inline functions from this     *
 *   file, or you compile this file and link it with other files to        *
 *   produce an executable, this file does not by itself cause the         *
 *   resulting executable to be covered by the GNU General Public          *
 *   License.  This exception does not however invalidate any other        *
 *   reasons why the executable file might be covered by the GNU General   *
 *   Public License.                                                       *
 *                                                                         *
 *   This library 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.                       *
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 *   Foundation, Inc., 59 Temple Place,                                    *
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 ***************************************************************************/

#include "../types/TypeStream-io.hpp"

namespace RTT {
    namespace types {
    // Code ripped from KDL 0.2


    // Eats space-like characters and comments
    // possibly returns the number of space-like characters eaten.
    int _EatSpace( std::istream& is,int* countp) {
        int ch;
        int count;
        count=-1;
        do {
            if( !is )
                return '!';

            ch = is.get();
            count++;
        } while ((ch==' ')||(ch=='\n')||(ch=='\t'));
        if (countp!=NULL) *countp =  count;
        return ch;
    }

    // Eats whites, returns, tabs and the delim character
    //  Checks wether delim char. is encountered.
    bool Eat( std::istream& is, int delim )
    {
        if( !is )
            return false;
        int ch;
        ch=_EatSpace(is);
        if (ch != delim) {
            return false;
        }
        ch=_EatSpace(is);
        is.putback(ch);
        return true;
    }

    // Eats whites, returns, tabs and the delim character
    //  Checks wether delim char. is encountered.
    // EatEnd does not eat all space-like char's at the end.
    bool EatEnd( std::istream& is, int delim )
    {
        if( !is )
            return false;
        int ch;
        ch=_EatSpace(is);
        if (ch != delim) {
            return false;
        }
        return true;
    }
    }
}