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/*
 * 
 *  Copyright (C) 2010  Mattias Runge
 * 
 *  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 Street, Fifth Floor, Boston, MA 02110-1301 USA.
 * 
 */

#include "common.h"

#include <iostream>

namespace atom {
namespace common {

std::string PadNumber(unsigned int number, unsigned int length)
{
    std::string padded_string = boost::lexical_cast<std::string>(number);
    
    while (padded_string.length() < length)
    {
        padded_string = "0" + padded_string;
    }
    
    return padded_string;
}
    
std::string ToHex(unsigned int value)
{
    char hex_string[11];
    
    snprintf(hex_string, sizeof(hex_string), "0x%08X", value);
    
    return std::string(hex_string);
}

std::string ToHex8bit(unsigned int value)
{
    char hex_string[3];
    
    if (value > 255)
    {
      snprintf(hex_string, sizeof(hex_string), "--");
    }
    else
    {
      snprintf(hex_string, sizeof(hex_string), "%02x", value);
    }
    
    return std::string(hex_string);
}


std::string ToHex4bit(unsigned int value)
{
    char hex_string[2];

    if (value > 15)
    {
      snprintf(hex_string, sizeof(hex_string), "-");
    }
    else
    {
      snprintf(hex_string, sizeof(hex_string), "%01x", value);
    }
    
    return std::string(hex_string);
}

unsigned int FromHex(std::string hex_chars)
{
    return static_cast<unsigned int>(strtoll(hex_chars.data(), NULL, 16));
}

std::string ToHexIfNumber(std::string data)
{
  bool is_number = true;
  
  if (data.length() == 0)
  {
    return data;
  }
  
  for (unsigned int n = 0; n < data.length(); n++)
  {
    if (!isdigit(data[n]))
    {
      is_number = false;
      break;
    }
  }
  
  if (is_number)
  {
    char *end = NULL;
    long value;
    
    value = strtol(data.c_str(), &end, 10);
    
    return ToHex(value);
  }
  
  return data;
}

std::string ToHex(std::string data)
{
    std::string debug_string;
    
    for (unsigned int n = 0; n < data.size(); n++)
    {
        debug_string += ToHex((unsigned int)data[n]) + ",";
    }
    
    return debug_string;
}
    
}; // namespace type
}; // namespace atom