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NumberFormatter.h

//
// NumberFormatter.h
//
// $Id: //poco/1.3/Foundation/include/Poco/NumberFormatter.h#3 $
//
// Library: Foundation
// Package: Core
// Module:  NumberFormatter
//
// Definition of the NumberFormatter class.
//
// Copyright (c) 2004-2008, Applied Informatics Software Engineering GmbH.
// and Contributors.
//
// Permission is hereby granted, free of charge, to any person or organization
// obtaining a copy of the software and accompanying documentation covered by
// this license (the "Software") to use, reproduce, display, distribute,
// execute, and transmit the Software, and to prepare derivative works of the
// Software, and to permit third-parties to whom the Software is furnished to
// do so, all subject to the following:
// 
// The copyright notices in the Software and this entire statement, including
// the above license grant, this restriction and the following disclaimer,
// must be included in all copies of the Software, in whole or in part, and
// all derivative works of the Software, unless such copies or derivative
// works are solely in the form of machine-executable object code generated by
// a source language processor.
// 
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
// FITNESS FOR A PARTICULAR PURPOSE, TITLE AND NON-INFRINGEMENT. IN NO EVENT
// SHALL THE COPYRIGHT HOLDERS OR ANYONE DISTRIBUTING THE SOFTWARE BE LIABLE
// FOR ANY DAMAGES OR OTHER LIABILITY, WHETHER IN CONTRACT, TORT OR OTHERWISE,
// ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
// DEALINGS IN THE SOFTWARE.
//


#ifndef Foundation_NumberFormatter_INCLUDED
#define Foundation_NumberFormatter_INCLUDED


#include "Poco/Foundation.h"


namespace Poco {


00049 class Foundation_API NumberFormatter
      /// The NumberFormatter class provides static methods
      /// for formatting numeric values into strings.
      ///
      /// There are two kind of static member functions:
      ///    * format* functions return a std::string containing
      ///      the formatted value.
      ///    * append* functions append the formatted value to
      ///      an existing string.
      ///
      /// Internally, std::sprintf() is used to do the actual
      /// formatting.
{
public:
      static std::string format(int value);
            /// Formats an integer value in decimal notation.

      static std::string format(int value, int width);
            /// Formats an integer value in decimal notation,
            /// right justified in a field having at least
            /// the specified width.

      static std::string format0(int value, int width);
            /// Formats an integer value in decimal notation, 
            /// right justified and zero-padded in a field
            /// having at least the specified width.

      static std::string formatHex(int value);
            /// Formats an int value in hexadecimal notation.
            /// The value is treated as unsigned.

      static std::string formatHex(int value, int width);
            /// Formats a int value in hexadecimal notation,
            /// right justified and zero-padded in
            /// a field having at least the specified width.
            /// The value is treated as unsigned.

      static std::string format(unsigned value);
            /// Formats an unsigned int value in decimal notation.

      static std::string format(unsigned value, int width);
            /// Formats an unsigned long int in decimal notation,
            /// right justified in a field having at least the
            /// specified width.

      static std::string format0(unsigned int value, int width);
            /// Formats an unsigned int value in decimal notation, 
            /// right justified and zero-padded in a field having at 
            /// least the specified width.

      static std::string formatHex(unsigned value);
            /// Formats an unsigned int value in hexadecimal notation.

      static std::string formatHex(unsigned value, int width);
            /// Formats a int value in hexadecimal notation,
            /// right justified and zero-padded in
            /// a field having at least the specified width.

      static std::string format(long value);
            /// Formats a long value in decimal notation.

      static std::string format(long value, int width);
            /// Formats a long value in decimal notation,
            /// right justified in a field having at least the 
            /// specified width.

      static std::string format0(long value, int width);
            /// Formats a long value in decimal notation, 
            /// right justified and zero-padded in a field
            /// having at least the specified width.

      static std::string formatHex(long value);
            /// Formats an unsigned long value in hexadecimal notation.
            /// The value is treated as unsigned.

      static std::string formatHex(long value, int width);
            /// Formats an unsigned long value in hexadecimal notation,
            /// right justified and zero-padded in a field having at least the 
            /// specified width.
            /// The value is treated as unsigned.

      static std::string format(unsigned long value);
            /// Formats an unsigned long value in decimal notation.

      static std::string format(unsigned long value, int width);
            /// Formats an unsigned long value in decimal notation,
            /// right justified in a field having at least the specified 
            /// width.

      static std::string format0(unsigned long value, int width);
            /// Formats an unsigned long value in decimal notation, 
            /// right justified and zero-padded
            /// in a field having at least the specified width.

      static std::string formatHex(unsigned long value);
            /// Formats an unsigned long value in hexadecimal notation.

      static std::string formatHex(unsigned long value, int width);
            /// Formats an unsigned long value in hexadecimal notation,
            /// right justified and zero-padded in a field having at least the 
            /// specified width.

#if defined(POCO_HAVE_INT64) && !defined(POCO_LONG_IS_64_BIT)

      static std::string format(Int64 value);
            /// Formats a 64-bit integer value in decimal notation.

      static std::string format(Int64 value, int width);
            /// Formats a 64-bit integer value in decimal notation,
            /// right justified in a field having at least the specified width.

      static std::string format0(Int64 value, int width);
            /// Formats a 64-bit integer value in decimal notation, 
            /// right justified and zero-padded in a field having at least 
            /// the specified width.

      static std::string formatHex(Int64 value);
            /// Formats a 64-bit integer value in hexadecimal notation.
            /// The value is treated as unsigned.

      static std::string formatHex(Int64 value, int width);
            /// Formats a 64-bit integer value in hexadecimal notation,
            /// right justified and zero-padded in a field having at least 
            /// the specified width.
            /// The value is treated as unsigned.

      static std::string format(UInt64 value);
            /// Formats an unsigned 64-bit integer value in decimal notation.

      static std::string format(UInt64 value, int width);
            /// Formats an unsigned 64-bit integer value in decimal notation,
            /// right justified in a field having at least the specified width.

      static std::string format0(UInt64 value, int width);
            /// Formats an unsigned 64-bit integer value in decimal notation, 
            /// right justified and zero-padded in a field having at least the 
            /// specified width.

      static std::string formatHex(UInt64 value);
            /// Formats a 64-bit integer value in hexadecimal notation.

      static std::string formatHex(UInt64 value, int width);
            /// Formats a 64-bit integer value in hexadecimal notation,
            /// right justified and zero-padded in a field having at least 
            /// the specified width.

#endif // defined(POCO_HAVE_INT64) && !defined(POCO_LONG_IS_64_BIT)

      static std::string format(float value);
            /// Formats a float value in decimal floating-point notation,
            /// according to std::printf's %g format with a precision of 8 fractional digits.

      static std::string format(double value);
            /// Formats a double value in decimal floating-point notation,
            /// according to std::printf's %g format with a precision of 16 fractional digits.

      static std::string format(double value, int precision);
            /// Formats a double value in decimal floating-point notation,
            /// according to std::printf's %f format with the given precision.

      static std::string format(double value, int width, int precision);
            /// Formats a double value in decimal floating-point notation,
            /// right justified in a field of the specified width,
            /// with the number of fractional digits given in precision.

      static std::string format(const void* ptr);
            /// Formats a pointer in an eight (32-bit architectures) or
            /// sixteen (64-bit architectures) characters wide
            /// field in hexadecimal notation.

      static void append(std::string& str, int value);
            /// Formats an integer value in decimal notation.

      static void append(std::string& str, int value, int width);
            /// Formats an integer value in decimal notation,
            /// right justified in a field having at least
            /// the specified width.

      static void append0(std::string& str, int value, int width);
            /// Formats an integer value in decimal notation, 
            /// right justified and zero-padded in a field
            /// having at least the specified width.

      static void appendHex(std::string& str, int value);
            /// Formats an int value in hexadecimal notation.
            /// The value is treated as unsigned.

      static void appendHex(std::string& str, int value, int width);
            /// Formats a int value in hexadecimal notation,
            /// right justified and zero-padded in
            /// a field having at least the specified width.
            /// The value is treated as unsigned.

      static void append(std::string& str, unsigned value);
            /// Formats an unsigned int value in decimal notation.

      static void append(std::string& str, unsigned value, int width);
            /// Formats an unsigned long int in decimal notation,
            /// right justified in a field having at least the
            /// specified width.

      static void append0(std::string& str, unsigned int value, int width);
            /// Formats an unsigned int value in decimal notation, 
            /// right justified and zero-padded in a field having at 
            /// least the specified width.

      static void appendHex(std::string& str, unsigned value);
            /// Formats an unsigned int value in hexadecimal notation.

      static void appendHex(std::string& str, unsigned value, int width);
            /// Formats a int value in hexadecimal notation,
            /// right justified and zero-padded in
            /// a field having at least the specified width.

      static void append(std::string& str, long value);
            /// Formats a long value in decimal notation.

      static void append(std::string& str, long value, int width);
            /// Formats a long value in decimal notation,
            /// right justified in a field having at least the 
            /// specified width.

      static void append0(std::string& str, long value, int width);
            /// Formats a long value in decimal notation, 
            /// right justified and zero-padded in a field
            /// having at least the specified width.

      static void appendHex(std::string& str, long value);
            /// Formats an unsigned long value in hexadecimal notation.
            /// The value is treated as unsigned.

      static void appendHex(std::string& str, long value, int width);
            /// Formats an unsigned long value in hexadecimal notation,
            /// right justified and zero-padded in a field having at least the 
            /// specified width.
            /// The value is treated as unsigned.

      static void append(std::string& str, unsigned long value);
            /// Formats an unsigned long value in decimal notation.

      static void append(std::string& str, unsigned long value, int width);
            /// Formats an unsigned long value in decimal notation,
            /// right justified in a field having at least the specified 
            /// width.

      static void append0(std::string& str, unsigned long value, int width);
            /// Formats an unsigned long value in decimal notation, 
            /// right justified and zero-padded
            /// in a field having at least the specified width.

      static void appendHex(std::string& str, unsigned long value);
            /// Formats an unsigned long value in hexadecimal notation.

      static void appendHex(std::string& str, unsigned long value, int width);
            /// Formats an unsigned long value in hexadecimal notation,
            /// right justified and zero-padded in a field having at least the 
            /// specified width.

#if defined(POCO_HAVE_INT64) && !defined(POCO_LONG_IS_64_BIT)

      static void append(std::string& str, Int64 value);
            /// Formats a 64-bit integer value in decimal notation.

      static void append(std::string& str, Int64 value, int width);
            /// Formats a 64-bit integer value in decimal notation,
            /// right justified in a field having at least the specified width.

      static void append0(std::string& str, Int64 value, int width);
            /// Formats a 64-bit integer value in decimal notation, 
            /// right justified and zero-padded in a field having at least 
            /// the specified width.

      static void appendHex(std::string& str, Int64 value);
            /// Formats a 64-bit integer value in hexadecimal notation.
            /// The value is treated as unsigned.

      static void appendHex(std::string& str, Int64 value, int width);
            /// Formats a 64-bit integer value in hexadecimal notation,
            /// right justified and zero-padded in a field having at least 
            /// the specified width.
            /// The value is treated as unsigned.

      static void append(std::string& str, UInt64 value);
            /// Formats an unsigned 64-bit integer value in decimal notation.

      static void append(std::string& str, UInt64 value, int width);
            /// Formats an unsigned 64-bit integer value in decimal notation,
            /// right justified in a field having at least the specified width.

      static void append0(std::string& str, UInt64 value, int width);
            /// Formats an unsigned 64-bit integer value in decimal notation, 
            /// right justified and zero-padded in a field having at least the 
            /// specified width.

      static void appendHex(std::string& str, UInt64 value);
            /// Formats a 64-bit integer value in hexadecimal notation.

      static void appendHex(std::string& str, UInt64 value, int width);
            /// Formats a 64-bit integer value in hexadecimal notation,
            /// right justified and zero-padded in a field having at least 
            /// the specified width.

#endif // defined(POCO_HAVE_INT64) && !defined(POCO_LONG_IS_64_BIT)

      static void append(std::string& str, float value);
            /// Formats a float value in decimal floating-point notation,
            /// according to std::printf's %g format with a precision of 8 fractional digits.

      static void append(std::string& str, double value);
            /// Formats a double value in decimal floating-point notation,
            /// according to std::printf's %g format with a precision of 16 fractional digits.

      static void append(std::string& str, double value, int precision);
            /// Formats a double value in decimal floating-point notation,
            /// according to std::printf's %f format with the given precision.

      static void append(std::string& str, double value, int width, int precision);
            /// Formats a double value in decimal floating-point notation,
            /// right justified in a field of the specified width,
            /// with the number of fractional digits given in precision.

      static void append(std::string& str, const void* ptr);
            /// Formats a pointer in an eight (32-bit architectures) or
            /// sixteen (64-bit architectures) characters wide
            /// field in hexadecimal notation.
};


//
// inlines
//
inline std::string NumberFormatter::format(int value)
{
      std::string result;
      append(result, value);
      return result;
}


00388 inline std::string NumberFormatter::format(int value, int width)
{
      std::string result;
      append(result, value, width);
      return result;
}


00396 inline std::string NumberFormatter::format0(int value, int width)
{
      std::string result;
      append0(result, value, width);
      return result;
}


00404 inline std::string NumberFormatter::formatHex(int value)
{
      std::string result;
      appendHex(result, value);
      return result;
}


00412 inline std::string NumberFormatter::formatHex(int value, int width)
{
      std::string result;
      appendHex(result, value, width);
      return result;
}


00420 inline std::string NumberFormatter::format(unsigned value)
{
      std::string result;
      append(result, value);
      return result;
}


00428 inline std::string NumberFormatter::format(unsigned value, int width)
{
      std::string result;
      append(result, value, width);
      return result;
}


00436 inline std::string NumberFormatter::format0(unsigned int value, int width)
{
      std::string result;
      append0(result, value, width);
      return result;
}


00444 inline std::string NumberFormatter::formatHex(unsigned value)
{
      std::string result;
      appendHex(result, value);
      return result;
}


00452 inline std::string NumberFormatter::formatHex(unsigned value, int width)
{
      std::string result;
      appendHex(result, value, width);
      return result;
}


00460 inline std::string NumberFormatter::format(long value)
{
      std::string result;
      append(result, value);
      return result;
}


00468 inline std::string NumberFormatter::format(long value, int width)
{
      std::string result;
      append(result, value, width);
      return result;
}


00476 inline std::string NumberFormatter::format0(long value, int width)
{
      std::string result;
      append0(result, value, width);
      return result;
}


00484 inline std::string NumberFormatter::formatHex(long value)
{
      std::string result;
      appendHex(result, value);
      return result;
}


00492 inline std::string NumberFormatter::formatHex(long value, int width)
{
      std::string result;
      appendHex(result, value, width);
      return result;
}


00500 inline std::string NumberFormatter::format(unsigned long value)
{
      std::string result;
      append(result, value);
      return result;
}


00508 inline std::string NumberFormatter::format(unsigned long value, int width)
{
      std::string result;
      append(result, value, width);
      return result;
}


00516 inline std::string NumberFormatter::format0(unsigned long value, int width)
{
      std::string result;
      append0(result, value, width);
      return result;
}


00524 inline std::string NumberFormatter::formatHex(unsigned long value)
{
      std::string result;
      appendHex(result, value);
      return result;
}


00532 inline std::string NumberFormatter::formatHex(unsigned long value, int width)
{
      std::string result;
      appendHex(result, value, width);
      return result;
}


#if defined(POCO_HAVE_INT64) && !defined(POCO_LONG_IS_64_BIT)


inline std::string NumberFormatter::format(Int64 value)
{
      std::string result;
      append(result, value);
      return result;
}


inline std::string NumberFormatter::format(Int64 value, int width)
{
      std::string result;
      append(result, value, width);
      return result;
}


inline std::string NumberFormatter::format0(Int64 value, int width)
{
      std::string result;
      append0(result, value, width);
      return result;
}


inline std::string NumberFormatter::formatHex(Int64 value)
{
      std::string result;
      appendHex(result, value);
      return result;
}


inline std::string NumberFormatter::formatHex(Int64 value, int width)
{
      std::string result;
      appendHex(result, value, width);
      return result;
}


inline std::string NumberFormatter::format(UInt64 value)
{
      std::string result;
      append(result, value);
      return result;
}


inline std::string NumberFormatter::format(UInt64 value, int width)
{
      std::string result;
      append(result, value, width);
      return result;
}


inline std::string NumberFormatter::format0(UInt64 value, int width)
{
      std::string result;
      append0(result, value, width);
      return result;
}


inline std::string NumberFormatter::formatHex(UInt64 value)
{
      std::string result;
      appendHex(result, value);
      return result;
}


inline std::string NumberFormatter::formatHex(UInt64 value, int width)
{
      std::string result;
      appendHex(result, value, width);
      return result;
}


#endif // defined(POCO_HAVE_INT64) && !defined(POCO_LONG_IS_64_BIT)


00626 inline std::string NumberFormatter::format(float value)
{
      std::string result;
      append(result, value);
      return result;
}


00634 inline std::string NumberFormatter::format(double value)
{
      std::string result;
      append(result, value);
      return result;
}


00642 inline std::string NumberFormatter::format(double value, int precision)
{
      std::string result;
      append(result, value, precision);
      return result;
}


00650 inline std::string NumberFormatter::format(double value, int width, int precision)
{
      std::string result;
      append(result, value, width, precision);
      return result;
}


00658 inline std::string NumberFormatter::format(const void* ptr)
{
      std::string result;
      append(result, ptr);
      return result;
}


} // namespace Poco


#endif // Foundation_NumberFormatter_INCLUDED

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