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// © 2016 and later: Unicode, Inc. and others.
// License & terms of use: http://www.unicode.org/copyright.html
/*
**********************************************************************
* Copyright (C) 2005-2015, International Business Machines
* Corporation and others. All Rights Reserved.
**********************************************************************
*/
#ifndef __CSRSBCS_H
#define __CSRSBCS_H
#include "unicode/uobject.h"
#if !UCONFIG_NO_CONVERSION
#include "csrecog.h"
U_NAMESPACE_BEGIN
class NGramParser : public UMemory
{
private:
int32_t ngram;
const int32_t *ngramList;
int32_t ngramCount;
int32_t hitCount;
protected:
int32_t byteIndex;
const uint8_t *charMap;
void addByte(int32_t b);
public:
NGramParser(const int32_t *theNgramList, const uint8_t *theCharMap);
virtual ~NGramParser();
private:
/*
* Binary search for value in table, which must have exactly 64 entries.
*/
int32_t search(const int32_t *table, int32_t value);
void lookup(int32_t thisNgram);
virtual int32_t nextByte(InputText *det);
virtual void parseCharacters(InputText *det);
public:
int32_t parse(InputText *det);
};
#if !UCONFIG_ONLY_HTML_CONVERSION
class NGramParser_IBM420 : public NGramParser
{
public:
NGramParser_IBM420(const int32_t *theNgramList, const uint8_t *theCharMap);
~NGramParser_IBM420();
private:
int32_t alef;
int32_t isLamAlef(int32_t b);
int32_t nextByte(InputText *det) override;
void parseCharacters(InputText *det) override;
};
#endif
class CharsetRecog_sbcs : public CharsetRecognizer
{
public:
CharsetRecog_sbcs();
virtual ~CharsetRecog_sbcs();
virtual const char *getName() const override = 0;
virtual UBool match(InputText *det, CharsetMatch *results) const override = 0;
virtual int32_t match_sbcs(InputText *det, const int32_t ngrams[], const uint8_t charMap[]) const;
};
class CharsetRecog_8859_1 : public CharsetRecog_sbcs
{
public:
virtual ~CharsetRecog_8859_1();
const char *getName() const override;
virtual UBool match(InputText *det, CharsetMatch *results) const override;
};
class CharsetRecog_8859_2 : public CharsetRecog_sbcs
{
public:
virtual ~CharsetRecog_8859_2();
const char *getName() const override;
virtual UBool match(InputText *det, CharsetMatch *results) const override;
};
class CharsetRecog_8859_5 : public CharsetRecog_sbcs
{
public:
virtual ~CharsetRecog_8859_5();
const char *getName() const override;
};
class CharsetRecog_8859_6 : public CharsetRecog_sbcs
{
public:
virtual ~CharsetRecog_8859_6();
const char *getName() const override;
};
class CharsetRecog_8859_7 : public CharsetRecog_sbcs
{
public:
virtual ~CharsetRecog_8859_7();
const char *getName() const override;
};
class CharsetRecog_8859_8 : public CharsetRecog_sbcs
{
public:
virtual ~CharsetRecog_8859_8();
virtual const char *getName() const override;
};
class CharsetRecog_8859_9 : public CharsetRecog_sbcs
{
public:
virtual ~CharsetRecog_8859_9();
const char *getName() const override;
};
class CharsetRecog_8859_5_ru : public CharsetRecog_8859_5
{
public:
virtual ~CharsetRecog_8859_5_ru();
const char *getLanguage() const override;
virtual UBool match(InputText *det, CharsetMatch *results) const override;
};
class CharsetRecog_8859_6_ar : public CharsetRecog_8859_6
{
public:
virtual ~CharsetRecog_8859_6_ar();
const char *getLanguage() const override;
virtual UBool match(InputText *det, CharsetMatch *results) const override;
};
class CharsetRecog_8859_7_el : public CharsetRecog_8859_7
{
public:
virtual ~CharsetRecog_8859_7_el();
const char *getLanguage() const override;
virtual UBool match(InputText *det, CharsetMatch *results) const override;
};
class CharsetRecog_8859_8_I_he : public CharsetRecog_8859_8
{
public:
virtual ~CharsetRecog_8859_8_I_he();
const char *getName() const override;
const char *getLanguage() const override;
virtual UBool match(InputText *det, CharsetMatch *results) const override;
};
class CharsetRecog_8859_8_he : public CharsetRecog_8859_8
{
public:
virtual ~CharsetRecog_8859_8_he ();
const char *getLanguage() const override;
virtual UBool match(InputText *det, CharsetMatch *results) const override;
};
class CharsetRecog_8859_9_tr : public CharsetRecog_8859_9
{
public:
virtual ~CharsetRecog_8859_9_tr ();
const char *getLanguage() const override;
virtual UBool match(InputText *det, CharsetMatch *results) const override;
};
class CharsetRecog_windows_1256 : public CharsetRecog_sbcs
{
public:
virtual ~CharsetRecog_windows_1256();
const char *getName() const override;
const char *getLanguage() const override;
virtual UBool match(InputText *det, CharsetMatch *results) const override;
};
class CharsetRecog_windows_1251 : public CharsetRecog_sbcs
{
public:
virtual ~CharsetRecog_windows_1251();
const char *getName() const override;
const char *getLanguage() const override;
virtual UBool match(InputText *det, CharsetMatch *results) const override;
};
class CharsetRecog_KOI8_R : public CharsetRecog_sbcs
{
public:
virtual ~CharsetRecog_KOI8_R();
const char *getName() const override;
const char *getLanguage() const override;
virtual UBool match(InputText *det, CharsetMatch *results) const override;
};
#if !UCONFIG_ONLY_HTML_CONVERSION
class CharsetRecog_IBM424_he : public CharsetRecog_sbcs
{
public:
virtual ~CharsetRecog_IBM424_he();
const char *getLanguage() const override;
};
class CharsetRecog_IBM424_he_rtl : public CharsetRecog_IBM424_he {
public:
virtual ~CharsetRecog_IBM424_he_rtl();
const char *getName() const override;
virtual UBool match(InputText *det, CharsetMatch *results) const override;
};
class CharsetRecog_IBM424_he_ltr : public CharsetRecog_IBM424_he {
virtual ~CharsetRecog_IBM424_he_ltr();
const char *getName() const override;
virtual UBool match(InputText *det, CharsetMatch *results) const override;
};
class CharsetRecog_IBM420_ar : public CharsetRecog_sbcs
{
public:
virtual ~CharsetRecog_IBM420_ar();
const char *getLanguage() const override;
int32_t match_sbcs(InputText *det, const int32_t ngrams[], const uint8_t charMap[]) const override;
};
class CharsetRecog_IBM420_ar_rtl : public CharsetRecog_IBM420_ar {
public:
virtual ~CharsetRecog_IBM420_ar_rtl();
const char *getName() const override;
virtual UBool match(InputText *det, CharsetMatch *results) const override;
};
class CharsetRecog_IBM420_ar_ltr : public CharsetRecog_IBM420_ar {
virtual ~CharsetRecog_IBM420_ar_ltr();
const char *getName() const override;
virtual UBool match(InputText *det, CharsetMatch *results) const override;
};
#endif
U_NAMESPACE_END
#endif /* !UCONFIG_NO_CONVERSION */
#endif /* __CSRSBCS_H */
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