mirror of
https://github.com/ClickHouse/ClickHouse.git
synced 2024-11-29 19:12:03 +00:00
95 lines
2.8 KiB
C++
95 lines
2.8 KiB
C++
//
|
|
// TextConverter.h
|
|
//
|
|
// Library: Foundation
|
|
// Package: Text
|
|
// Module: TextConverter
|
|
//
|
|
// Definition of the TextConverter class.
|
|
//
|
|
// Copyright (c) 2004-2006, Applied Informatics Software Engineering GmbH.
|
|
// and Contributors.
|
|
//
|
|
// SPDX-License-Identifier: BSL-1.0
|
|
//
|
|
|
|
|
|
#ifndef Foundation_TextConverter_INCLUDED
|
|
#define Foundation_TextConverter_INCLUDED
|
|
|
|
|
|
#include "Poco/Foundation.h"
|
|
|
|
|
|
namespace Poco
|
|
{
|
|
|
|
|
|
class TextEncoding;
|
|
|
|
|
|
class Foundation_API TextConverter
|
|
/// A TextConverter converts strings from one encoding
|
|
/// into another.
|
|
{
|
|
public:
|
|
typedef int (*Transform)(int);
|
|
/// Transform function for convert.
|
|
|
|
TextConverter(const TextEncoding & inEncoding, const TextEncoding & outEncoding, int defaultChar = '?');
|
|
/// Creates the TextConverter. The encoding objects must not be deleted while the
|
|
/// TextConverter is in use.
|
|
|
|
~TextConverter();
|
|
/// Destroys the TextConverter.
|
|
|
|
int convert(const std::string & source, std::string & destination, Transform trans);
|
|
/// Converts the source string from inEncoding to outEncoding
|
|
/// and appends the result to destination. Every character is
|
|
/// passed to the transform function.
|
|
/// If a character cannot be represented in outEncoding, defaultChar
|
|
/// is used instead.
|
|
/// Returns the number of encoding errors (invalid byte sequences
|
|
/// in source).
|
|
|
|
int convert(const void * source, int length, std::string & destination, Transform trans);
|
|
/// Converts the source buffer from inEncoding to outEncoding
|
|
/// and appends the result to destination. Every character is
|
|
/// passed to the transform function.
|
|
/// If a character cannot be represented in outEncoding, defaultChar
|
|
/// is used instead.
|
|
/// Returns the number of encoding errors (invalid byte sequences
|
|
/// in source).
|
|
|
|
int convert(const std::string & source, std::string & destination);
|
|
/// Converts the source string from inEncoding to outEncoding
|
|
/// and appends the result to destination.
|
|
/// If a character cannot be represented in outEncoding, defaultChar
|
|
/// is used instead.
|
|
/// Returns the number of encoding errors (invalid byte sequences
|
|
/// in source).
|
|
|
|
int convert(const void * source, int length, std::string & destination);
|
|
/// Converts the source buffer from inEncoding to outEncoding
|
|
/// and appends the result to destination.
|
|
/// If a character cannot be represented in outEncoding, defaultChar
|
|
/// is used instead.
|
|
/// Returns the number of encoding errors (invalid byte sequences
|
|
/// in source).
|
|
|
|
private:
|
|
TextConverter();
|
|
TextConverter(const TextConverter &);
|
|
TextConverter & operator=(const TextConverter &);
|
|
|
|
const TextEncoding & _inEncoding;
|
|
const TextEncoding & _outEncoding;
|
|
int _defaultChar;
|
|
};
|
|
|
|
|
|
} // namespace Poco
|
|
|
|
|
|
#endif // Foundation_TextConverter_INCLUDED
|