~drizzle-trunk/drizzle/development

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

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

 *

 *  Copyright (C) 2009 Sun Microsystems, Inc.

 *

 *  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 <drizzled/util/convert.h>

#include <string>

#include <iomanip>

#include <sstream>

using namespace std;

namespace drizzled {

uint64_t drizzled_string_to_hex(char *to, const char *from, uint64_t from_size)

{

  static const char* hex_map= "0123456789ABCDEF";

  for (const char *from_end= from + from_size; from != from_end; from++)

  {

    *to++= hex_map[((unsigned char) *from) >> 4];

    *to++= hex_map[((unsigned char) *from) & 0xF];

  }

  *to= 0;

  return from_size * 2;

}

static inline char hex_char_value(char c)

{

  if (c >= '0' && c <= '9')

    return c - '0';

  else if (c >= 'A' && c <= 'F')

    return c - 'A' + 10;

  else if (c >= 'a' && c <= 'f')

    return c - 'a' + 10;

  return 0;

}

void drizzled_hex_to_string(char *to, const char *from, uint64_t from_size)

{

  const char *from_end = from + from_size;

  while (from != from_end)

  {

    *to= hex_char_value(*from++) << 4;

    if (from != from_end)

      *to++|= hex_char_value(*from++);

  }

}

void bytesToHexdumpFormat(string &to, const unsigned char *from, size_t from_length)

{

  static const char* hex_map= "0123456789abcdef";

  ostringstream line_number;

  for (size_t x= 0; x < from_length; x+= 16)

  {

    line_number << setfill('0') << setw(6) << x;

    to.append(line_number.str());

    to.append(": ", 2);

    for (size_t y= 0; y < 16; y++)

    {

      if (x + y < from_length)

      {

        to.push_back(hex_map[(from[x+y]) >> 4]);

        to.push_back(hex_map[(from[x+y]) & 0xF]);

        to.push_back(' ');

      }

      else

        to.append("   ");

    }

    to.push_back(' ');

    for (size_t y= 0; y < 16; y++)

    {

      if (x + y < from_length)

        to.push_back(isprint(from[x + y]) ? from[x + y] : '.');

    }

    to.push_back('\n');

    line_number.str("");

  }

}

} /* namespace drizzled */