chromium/third_party/icu/source/i18n/csrmbcs.h

// © 2016 and later: Unicode, Inc. and others.
// License & terms of use: http://www.unicode.org/copyright.html
/*
 **********************************************************************
 *   Copyright (C) 2005-2012, International Business Machines
 *   Corporation and others.  All Rights Reserved.
 **********************************************************************
 */

#ifndef __CSRMBCS_H
#define __CSRMBCS_H

#include "unicode/utypes.h"

#if !UCONFIG_NO_CONVERSION

#include "csrecog.h"

U_NAMESPACE_BEGIN

// "Character"  iterated character class.
//    Recognizers for specific mbcs encodings make their "characters" available
//    by providing a nextChar() function that fills in an instance of IteratedChar
//    with the next char from the input.
//    The returned characters are not converted to Unicode, but remain as the raw
//    bytes (concatenated into an int) from the codepage data.
//
//  For Asian charsets, use the raw input rather than the input that has been
//   stripped of markup.  Detection only considers multi-byte chars, effectively
//   stripping markup anyway, and double byte chars do occur in markup too.
//
class IteratedChar : public UMemory
{ … };


class CharsetRecog_mbcs : public CharsetRecognizer { … };


/**
 *   Shift-JIS charset recognizer.
 *
 */
class CharsetRecog_sjis : public CharsetRecog_mbcs { … };


/**
 *   EUC charset recognizers.  One abstract class that provides the common function
 *             for getting the next character according to the EUC encoding scheme,
 *             and nested derived classes for EUC_KR, EUC_JP, EUC_CN.
 *
 */
class CharsetRecog_euc : public CharsetRecog_mbcs
{ … };

/**
 * The charset recognize for EUC-JP.  A singleton instance of this class
 *    is created and kept by the public CharsetDetector class
 */
class CharsetRecog_euc_jp : public CharsetRecog_euc
{ … };

/**
 * The charset recognize for EUC-KR.  A singleton instance of this class
 *    is created and kept by the public CharsetDetector class
 */
class CharsetRecog_euc_kr : public CharsetRecog_euc
{ … };

/**
 *
 *   Big5 charset recognizer.
 *
 */
class CharsetRecog_big5 : public CharsetRecog_mbcs
{ … };


/**
 *
 *   GB-18030 recognizer. Uses simplified Chinese statistics.
 *
 */
class CharsetRecog_gb_18030 : public CharsetRecog_mbcs
{ … };

U_NAMESPACE_END

#endif
#endif /* __CSRMBCS_H */