The Tor Browser: intl/icu/source/i18n/csrsbcs.h@b8a032363ba2

Incorporate requested changes from Mozilla in review:
https://bugzilla.mozilla.org/show_bug.cgi?id=1123480#c6

     1 /*

     2  **********************************************************************

     3  *   Copyright (C) 2005-2013, International Business Machines

     4  *   Corporation and others.  All Rights Reserved.

     5  **********************************************************************

     6  */

     8 #ifndef __CSRSBCS_H

     9 #define __CSRSBCS_H

    11 #include "unicode/uobject.h"

    13 #if !UCONFIG_NO_CONVERSION

    15 #include "csrecog.h"

    17 U_NAMESPACE_BEGIN

    19 class NGramParser : public UMemory

    20 {

    21 private:

    22     int32_t ngram;

    23     const int32_t *ngramList;

    25     int32_t ngramCount;

    26     int32_t hitCount;

    28 protected:

    29 	int32_t byteIndex;

    30     const uint8_t *charMap;

    32 	void addByte(int32_t b);

    34 public:

    35     NGramParser(const int32_t *theNgramList, const uint8_t *theCharMap);

    37 private:

    38     /*

    39     * Binary search for value in table, which must have exactly 64 entries.

    40     */

    41     int32_t search(const int32_t *table, int32_t value);

    43     void lookup(int32_t thisNgram);

    45     virtual int32_t nextByte(InputText *det);

    46 	virtual void parseCharacters(InputText *det);

    48 public:

    49     int32_t parse(InputText *det);

    51 };

    53 class NGramParser_IBM420 : public NGramParser

    54 {

    55 private:

    56 	int32_t alef;

    57 	int32_t isLamAlef(int32_t b);

    58 	int32_t nextByte(InputText *det);

    59 	void parseCharacters(InputText *det);

    61 public:

    62     NGramParser_IBM420(const int32_t *theNgramList, const uint8_t *theCharMap);

    63 };

    66 class CharsetRecog_sbcs : public CharsetRecognizer

    67 {

    68 public:

    69     CharsetRecog_sbcs();

    70     virtual ~CharsetRecog_sbcs();

    71     virtual const char *getName() const = 0;

    72     virtual UBool match(InputText *det, CharsetMatch *results) const = 0;

    73     virtual int32_t match_sbcs(InputText *det, const int32_t ngrams[], const uint8_t charMap[]) const;

    74 };

    76 class CharsetRecog_8859_1 : public CharsetRecog_sbcs

    77 {

    78 public:

    79     virtual ~CharsetRecog_8859_1();

    80     const char *getName() const;

    81     virtual UBool match(InputText *det, CharsetMatch *results) const;

    82 };

    84 class CharsetRecog_8859_2 : public CharsetRecog_sbcs

    85 {

    86 public:

    87     virtual ~CharsetRecog_8859_2();

    88     const char *getName() const;

    89     virtual UBool match(InputText *det, CharsetMatch *results) const;

    90 };

    92 class CharsetRecog_8859_5 : public CharsetRecog_sbcs

    93 {

    94 public:

    95     virtual ~CharsetRecog_8859_5();

    96     const char *getName() const;

    97 };

    99 class CharsetRecog_8859_6 : public CharsetRecog_sbcs

   100 {

   101 public:

   102     virtual ~CharsetRecog_8859_6();

   104     const char *getName() const;

   105 };

   107 class CharsetRecog_8859_7 : public CharsetRecog_sbcs

   108 {

   109 public:

   110     virtual ~CharsetRecog_8859_7();

   112     const char *getName() const;

   113 };

   115 class CharsetRecog_8859_8 : public CharsetRecog_sbcs

   116 {

   117 public:

   118     virtual ~CharsetRecog_8859_8();

   120     virtual const char *getName() const;

   121 };

   123 class CharsetRecog_8859_9 : public CharsetRecog_sbcs

   124 {

   125 public:

   126     virtual ~CharsetRecog_8859_9();

   128     const char *getName() const;

   129 };

   133 class CharsetRecog_8859_5_ru : public CharsetRecog_8859_5

   134 {

   135 public:

   136     virtual ~CharsetRecog_8859_5_ru();

   138     const char *getLanguage() const;

   140     virtual UBool match(InputText *det, CharsetMatch *results) const;

   141 };

   143 class CharsetRecog_8859_6_ar : public CharsetRecog_8859_6

   144 {

   145 public:

   146     virtual ~CharsetRecog_8859_6_ar();

   148     const char *getLanguage() const;

   150     virtual UBool match(InputText *det, CharsetMatch *results) const;

   151 };

   153 class CharsetRecog_8859_7_el : public CharsetRecog_8859_7

   154 {

   155 public:

   156     virtual ~CharsetRecog_8859_7_el();

   158     const char *getLanguage() const;

   160     virtual UBool match(InputText *det, CharsetMatch *results) const;

   161 };

   163 class CharsetRecog_8859_8_I_he : public CharsetRecog_8859_8

   164 {

   165 public:

   166     virtual ~CharsetRecog_8859_8_I_he();

   168     const char *getName() const;

   170     const char *getLanguage() const;

   172     virtual UBool match(InputText *det, CharsetMatch *results) const;

   173 };

   175 class CharsetRecog_8859_8_he : public CharsetRecog_8859_8

   176 {

   177 public:

   178     virtual ~CharsetRecog_8859_8_he ();

   180     const char *getLanguage() const;

   182     virtual UBool match(InputText *det, CharsetMatch *results) const;

   183 };

   185 class CharsetRecog_8859_9_tr : public CharsetRecog_8859_9

   186 {

   187 public:

   188     virtual ~CharsetRecog_8859_9_tr ();

   190     const char *getLanguage() const;

   192     virtual UBool match(InputText *det, CharsetMatch *results) const;

   193 };

   195 class CharsetRecog_windows_1256 : public CharsetRecog_sbcs

   196 {

   197 public:

   198     virtual ~CharsetRecog_windows_1256();

   200     const char *getName() const;

   202     const char *getLanguage() const;

   204     virtual UBool match(InputText *det, CharsetMatch *results) const;

   205 };

   207 class CharsetRecog_windows_1251 : public CharsetRecog_sbcs

   208 {

   209 public:

   210     virtual ~CharsetRecog_windows_1251();

   212     const char *getName() const;

   214     const char *getLanguage() const;

   216     virtual UBool match(InputText *det, CharsetMatch *results) const;

   217 };

   220 class CharsetRecog_KOI8_R : public CharsetRecog_sbcs

   221 {

   222 public:

   223     virtual ~CharsetRecog_KOI8_R();

   225     const char *getName() const;

   227     const char *getLanguage() const;

   229     virtual UBool match(InputText *det, CharsetMatch *results) const;

   230 };

   232 class CharsetRecog_IBM424_he : public CharsetRecog_sbcs

   233 {

   234 public:

   235     virtual ~CharsetRecog_IBM424_he();

   237     const char *getLanguage() const;

   238 };

   240 class CharsetRecog_IBM424_he_rtl : public CharsetRecog_IBM424_he {

   241 public:

   242     virtual ~CharsetRecog_IBM424_he_rtl();

   244     const char *getName() const;

   246     virtual UBool match(InputText *det, CharsetMatch *results) const;

   247 };

   249 class CharsetRecog_IBM424_he_ltr : public CharsetRecog_IBM424_he {

   250     virtual ~CharsetRecog_IBM424_he_ltr();

   252     const char *getName() const;

   254     virtual UBool match(InputText *det, CharsetMatch *results) const;

   255 };

   257 class CharsetRecog_IBM420_ar : public CharsetRecog_sbcs

   258 {

   259 public:

   260     virtual ~CharsetRecog_IBM420_ar();

   262     const char *getLanguage() const;

   263 	int32_t match_sbcs(InputText *det, const int32_t ngrams[], const uint8_t charMap[]) const;

   265 };

   267 class CharsetRecog_IBM420_ar_rtl : public CharsetRecog_IBM420_ar {

   268 public:

   269     virtual ~CharsetRecog_IBM420_ar_rtl();

   271     const char *getName() const;

   273     virtual UBool match(InputText *det, CharsetMatch *results) const;

   274 };

   276 class CharsetRecog_IBM420_ar_ltr : public CharsetRecog_IBM420_ar {

   277     virtual ~CharsetRecog_IBM420_ar_ltr();

   279     const char *getName() const;

   281     virtual UBool match(InputText *det, CharsetMatch *results) const;

   282 };

   284 U_NAMESPACE_END

   286 #endif /* !UCONFIG_NO_CONVERSION */

   287 #endif /* __CSRSBCS_H */

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