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diff --git a/intl/icu/source/i18n/csrsbcs.h b/intl/icu/source/i18n/csrsbcs.h
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+// Copyright (C) 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);
+ void parseCharacters(InputText *det);
+};
+#endif
+
+
+class CharsetRecog_sbcs : public CharsetRecognizer
+{
+public:
+ CharsetRecog_sbcs();
+ virtual ~CharsetRecog_sbcs();
+ virtual const char *getName() const = 0;
+ virtual UBool match(InputText *det, CharsetMatch *results) const = 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;
+ virtual UBool match(InputText *det, CharsetMatch *results) const;
+};
+
+class CharsetRecog_8859_2 : public CharsetRecog_sbcs
+{
+public:
+ virtual ~CharsetRecog_8859_2();
+ const char *getName() const;
+ virtual UBool match(InputText *det, CharsetMatch *results) const;
+};
+
+class CharsetRecog_8859_5 : public CharsetRecog_sbcs
+{
+public:
+ virtual ~CharsetRecog_8859_5();
+ const char *getName() const;
+};
+
+class CharsetRecog_8859_6 : public CharsetRecog_sbcs
+{
+public:
+ virtual ~CharsetRecog_8859_6();
+
+ const char *getName() const;
+};
+
+class CharsetRecog_8859_7 : public CharsetRecog_sbcs
+{
+public:
+ virtual ~CharsetRecog_8859_7();
+
+ const char *getName() const;
+};
+
+class CharsetRecog_8859_8 : public CharsetRecog_sbcs
+{
+public:
+ virtual ~CharsetRecog_8859_8();
+
+ virtual const char *getName() const;
+};
+
+class CharsetRecog_8859_9 : public CharsetRecog_sbcs
+{
+public:
+ virtual ~CharsetRecog_8859_9();
+
+ const char *getName() const;
+};
+
+
+
+class CharsetRecog_8859_5_ru : public CharsetRecog_8859_5
+{
+public:
+ virtual ~CharsetRecog_8859_5_ru();
+
+ const char *getLanguage() const;
+
+ virtual UBool match(InputText *det, CharsetMatch *results) const;
+};
+
+class CharsetRecog_8859_6_ar : public CharsetRecog_8859_6
+{
+public:
+ virtual ~CharsetRecog_8859_6_ar();
+
+ const char *getLanguage() const;
+
+ virtual UBool match(InputText *det, CharsetMatch *results) const;
+};
+
+class CharsetRecog_8859_7_el : public CharsetRecog_8859_7
+{
+public:
+ virtual ~CharsetRecog_8859_7_el();
+
+ const char *getLanguage() const;
+
+ virtual UBool match(InputText *det, CharsetMatch *results) const;
+};
+
+class CharsetRecog_8859_8_I_he : public CharsetRecog_8859_8
+{
+public:
+ virtual ~CharsetRecog_8859_8_I_he();
+
+ const char *getName() const;
+
+ const char *getLanguage() const;
+
+ virtual UBool match(InputText *det, CharsetMatch *results) const;
+};
+
+class CharsetRecog_8859_8_he : public CharsetRecog_8859_8
+{
+public:
+ virtual ~CharsetRecog_8859_8_he ();
+
+ const char *getLanguage() const;
+
+ virtual UBool match(InputText *det, CharsetMatch *results) const;
+};
+
+class CharsetRecog_8859_9_tr : public CharsetRecog_8859_9
+{
+public:
+ virtual ~CharsetRecog_8859_9_tr ();
+
+ const char *getLanguage() const;
+
+ virtual UBool match(InputText *det, CharsetMatch *results) const;
+};
+
+class CharsetRecog_windows_1256 : public CharsetRecog_sbcs
+{
+public:
+ virtual ~CharsetRecog_windows_1256();
+
+ const char *getName() const;
+
+ const char *getLanguage() const;
+
+ virtual UBool match(InputText *det, CharsetMatch *results) const;
+};
+
+class CharsetRecog_windows_1251 : public CharsetRecog_sbcs
+{
+public:
+ virtual ~CharsetRecog_windows_1251();
+
+ const char *getName() const;
+
+ const char *getLanguage() const;
+
+ virtual UBool match(InputText *det, CharsetMatch *results) const;
+};
+
+
+class CharsetRecog_KOI8_R : public CharsetRecog_sbcs
+{
+public:
+ virtual ~CharsetRecog_KOI8_R();
+
+ const char *getName() const;
+
+ const char *getLanguage() const;
+
+ virtual UBool match(InputText *det, CharsetMatch *results) const;
+};
+
+#if !UCONFIG_ONLY_HTML_CONVERSION
+class CharsetRecog_IBM424_he : public CharsetRecog_sbcs
+{
+public:
+ virtual ~CharsetRecog_IBM424_he();
+
+ const char *getLanguage() const;
+};
+
+class CharsetRecog_IBM424_he_rtl : public CharsetRecog_IBM424_he {
+public:
+ virtual ~CharsetRecog_IBM424_he_rtl();
+
+ const char *getName() const;
+
+ virtual UBool match(InputText *det, CharsetMatch *results) const;
+};
+
+class CharsetRecog_IBM424_he_ltr : public CharsetRecog_IBM424_he {
+ virtual ~CharsetRecog_IBM424_he_ltr();
+
+ const char *getName() const;
+
+ virtual UBool match(InputText *det, CharsetMatch *results) const;
+};
+
+class CharsetRecog_IBM420_ar : public CharsetRecog_sbcs
+{
+public:
+ virtual ~CharsetRecog_IBM420_ar();
+
+ const char *getLanguage() const;
+ int32_t match_sbcs(InputText *det, const int32_t ngrams[], const uint8_t charMap[]) const;
+
+};
+
+class CharsetRecog_IBM420_ar_rtl : public CharsetRecog_IBM420_ar {
+public:
+ virtual ~CharsetRecog_IBM420_ar_rtl();
+
+ const char *getName() const;
+
+ virtual UBool match(InputText *det, CharsetMatch *results) const;
+};
+
+class CharsetRecog_IBM420_ar_ltr : public CharsetRecog_IBM420_ar {
+ virtual ~CharsetRecog_IBM420_ar_ltr();
+
+ const char *getName() const;
+
+ virtual UBool match(InputText *det, CharsetMatch *results) const;
+};
+#endif
+
+U_NAMESPACE_END
+
+#endif /* !UCONFIG_NO_CONVERSION */
+#endif /* __CSRSBCS_H */