util.h

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/*
    Copyright (C) 2012-2020 Carl Hetherington <cth@carlh.net>
 
    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; 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 General Public License for more details.
 
    You should have received a copy of the GNU General Public License
    along with this program; if not, write to the Free Software
    Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
 
*/
 
#include <boost/optional.hpp>
#include <memory>
#include <string>
 
#define LIBSUB_UNUSED(x) (void)(x)
 
namespace sub {
 
class Reader;
 
extern bool empty_or_white_space (std::string s);
extern void remove_unicode_bom (boost::optional<std::string>& line);
extern boost::optional<std::string> get_line_file (FILE* f);
extern boost::optional<std::string> get_line_string (std::string* s);
extern void dump (std::shared_ptr<const Reader> read, std::ostream& os);
 
}