icuSources/i18n/csrucode.h

   1 // © 2016 and later: Unicode, Inc. and others.
   2 // License & terms of use: http://www.unicode.org/copyright.html
   3 /*
   4  **********************************************************************
   5  *   Copyright (C) 2005-2012, International Business Machines
   6  *   Corporation and others.  All Rights Reserved.
   7  **********************************************************************
   8  */
   9
  10 #ifndef __CSRUCODE_H
  11 #define __CSRUCODE_H
  12
  13 #include "unicode/utypes.h"
  14
  15 #if !UCONFIG_NO_CONVERSION
  16
  17 #include "csrecog.h"
  18
  19 U_NAMESPACE_BEGIN
  20
  21 /**
  22  * This class matches UTF-16 and UTF-32, both big- and little-endian. The
  23  * BOM will be used if it is present.
  24  *
  25  * @internal
  26  */
  27 class CharsetRecog_Unicode : public CharsetRecognizer
  28 {
  29
  30 public:
  31
  32     virtual ~CharsetRecog_Unicode();
  33     /* (non-Javadoc)
  34      * @see com.ibm.icu.text.CharsetRecognizer#getName()
  35      */
  36     const char* getName() const = 0;
  37
  38     /* (non-Javadoc)
  39      * @see com.ibm.icu.text.CharsetRecognizer#match(com.ibm.icu.text.CharsetDetector)
  40      */
  41     UBool match(InputText* textIn, CharsetMatch *results) const = 0;
  42 };
  43
  44
  45 class CharsetRecog_UTF_16_BE : public CharsetRecog_Unicode
  46 {
  47 public:
  48
  49     virtual ~CharsetRecog_UTF_16_BE();
  50
  51     const char *getName() const;
  52
  53     UBool match(InputText* textIn, CharsetMatch *results) const;
  54 };
  55
  56 class CharsetRecog_UTF_16_LE : public CharsetRecog_Unicode
  57 {
  58 public:
  59
  60     virtual ~CharsetRecog_UTF_16_LE();
  61
  62     const char *getName() const;
  63
  64     UBool match(InputText* textIn, CharsetMatch *results) const;
  65 };
  66
  67 class CharsetRecog_UTF_32 : public CharsetRecog_Unicode
  68 {
  69 protected:
  70     virtual int32_t getChar(const uint8_t *input, int32_t index) const = 0;
  71 public:
  72
  73     virtual ~CharsetRecog_UTF_32();
  74
  75     const char* getName() const = 0;
  76
  77     UBool match(InputText* textIn, CharsetMatch *results) const;
  78 };
  79
  80
  81 class CharsetRecog_UTF_32_BE : public CharsetRecog_UTF_32
  82 {
  83 protected:
  84     int32_t getChar(const uint8_t *input, int32_t index) const;
  85
  86 public:
  87
  88     virtual ~CharsetRecog_UTF_32_BE();
  89
  90     const char *getName() const;
  91 };
  92
  93
  94 class CharsetRecog_UTF_32_LE : public CharsetRecog_UTF_32
  95 {
  96 protected:
  97     int32_t getChar(const uint8_t *input, int32_t index) const;
  98
  99 public:
 100     virtual ~CharsetRecog_UTF_32_LE();
 101
 102     const char* getName() const;
 103 };
 104
 105 U_NAMESPACE_END
 106
 107 #endif
 108 #endif /* __CSRUCODE_H */