Qt 4.8
qcompressedwhitespace_p.h
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41 
42 //
43 // W A R N I N G
44 // -------------
45 //
46 // This file is not part of the Qt API. It exists purely as an
47 // implementation detail. This header file may change from version to
48 // version without notice, or even be removed.
49 //
50 // We mean it.
51 
52 #ifndef Patternist_CompressedWhitespace_H
53 #define Patternist_CompressedWhitespace_H
54 
55 #include <QtGlobal>
56 
58 
60 
61 class QChar;
62 class QString;
63 class QStringRef;
64 
65 namespace QPatternist
66 {
88  {
89  public:
102  static QString compress(const QStringRef &input);
103 
111  static QString decompress(const QString &input);
112 
113  private:
118  {
119  Space = 0x0,
120 
126  CR = 0x80,
127 
133  LF = 0x40,
134 
138  Tab = 0xC0
139  };
140 
142  {
143  /* We can at maximum store this many consecutive characters
144  * of one type. We use 6 bits for the count. */
145  MaxCharCount = (1 << 6) - 1,
146 
150  Lower8Bits = (1 << 8) - 1,
151 
155  Lower6Bits = (1 << 6) - 1,
156 
157  /*
158  * Binary: 11000000
159  */
160  UpperTwoBits = 3 << 6
161  };
162 
163  static inline CharIdentifier toIdentifier(const QChar ch);
164 
165  static inline quint8 toCompressedChar(const QChar ch, const int len);
166  static inline QChar toChar(const CharIdentifier id);
167 
172  static inline bool isEven(const int number);
173 
177  inline CompressedWhitespace();
179  };
180 }
181 
183 
185 
186 #endif
#define QT_END_NAMESPACE
This macro expands to.
Definition: qglobal.h:90
#define QT_BEGIN_HEADER
Definition: qglobal.h:136
#define Q_DISABLE_COPY(Class)
Disables the use of copy constructors and assignment operators for the given Class.
Definition: qglobal.h:2523
unsigned char quint8
Definition: qglobal.h:934
The QString class provides a Unicode character string.
Definition: qstring.h:83
The QChar class provides a 16-bit Unicode character.
Definition: qchar.h:72
#define QT_BEGIN_NAMESPACE
This macro expands to.
Definition: qglobal.h:89
The namespace for the internal API of QtXmlPatterns.
A compression facility for whitespace nodes.
The QStringRef class provides a thin wrapper around QString substrings.
Definition: qstring.h:1099
#define Q_AUTOTEST_EXPORT
Definition: qglobal.h:1510
#define QT_END_HEADER
Definition: qglobal.h:137