~drizzle-trunk/drizzle/development

/* - mode: c++; c-basic-offset: 2; indent-tabs-mode: nil; -*-

 *  vim:expandtab:shiftwidth=2:tabstop=2:smarttab:

 *

 *  Copyright (C) 2010 Brian Aker

 *

 *  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., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA

 */

#include <config.h>

#include <string>

#include <boost/foreach.hpp>

#include <drizzled/util/tablename_to_filename.h>

#include <drizzled/internal/my_sys.h>

namespace drizzled {

namespace util {

static const char* hexchars= "0123456789abcdef";

/*

  Translate a table name to a cursor name (WL #1324).

  SYNOPSIS

    tablename_to_filename()

      from                      The table name

      to                OUT     The cursor name

  RETURN

    true if errors happen. false on success.

*/

std::string tablename_to_filename(const std::string &from)

{

  std::string to;

  BOOST_FOREACH(char it, from)

  {

    if (isascii(it))

    {

      if (isdigit(it) || islower(it) || it == '_' || it == ' ' || it == '-')

      {

        to.push_back(it);

        continue;

      }

      if (isupper(it))

      {

        to.push_back(tolower(it));

        continue;

      }

    }

    /* We need to escape this char in a way that can be reversed */

    to.push_back('@');

    to.push_back(hexchars[(it >> 4) & 15]);

    to.push_back(hexchars[it & 15]);

  }

  if (drizzled::internal::check_if_legal_tablename(to.c_str()))

  {

    to += "@@@";

  }

  return to;

}

} /* namespace util */

} /* namespace drizzled */