icuSources/i18n/csrucode.h

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