QTextDecoder Class
The QTextDecoder class provides a state-based decoder. \reentrant
\ingroup
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Header: | #include <QTextDecoder> |
Public Functions
QTextDecoder(const QTextCodec *codec) | |
QTextDecoder(const QTextCodec *codec, QTextCodec::ConversionFlags flags) | |
~QTextDecoder() | |
bool | hasFailure() const |
bool | needsMoreData() const |
QString | toUnicode(const char *chars, int len) |
QString | toUnicode(const QByteArray &ba) |
void | toUnicode(QString *target, const char *chars, int len) |
Detailed Description
\inmodule
QtCore5Compat
A text decoder converts text from an encoded text format into Unicode using a specific codec.
The decoder converts text in this format into Unicode, remembering any state that is required between calls.
See also QTextCodec::makeDecoder() and QTextEncoder.
Member Function Documentation
[explicit]
QTextDecoder::QTextDecoder(const QTextCodec *codec)
Constructs a text decoder for the given codec.
[explicit]
QTextDecoder::QTextDecoder(const QTextCodec *codec, QTextCodec::ConversionFlags flags)
Constructs a text decoder for the given codec and conversion flags.
\since
4.7
[noexcept]
QTextDecoder::~QTextDecoder()
Destroys the decoder.
bool QTextDecoder::hasFailure() const
\internal
\since
4.3 Determines whether the decoder encountered a failure while decoding the input. If an error was encountered, the produced result is undefined, and gets converted as according to the conversion flags.
bool QTextDecoder::needsMoreData() const
\internal
\since
5.12
Determines whether the decoder needs more bytes to continue decoding. That is, this signifies that the input string ended in the middle of a multi-byte sequence. Note that it's possible some codecs do not report this.
QString QTextDecoder::toUnicode(const char *chars, int len)
Converts the first len bytes in chars to Unicode, returning the result.
If not all characters are used (e.g. if only part of a multi-byte encoding is at the end of the characters), the decoder remembers enough state to continue with the next call to this function.
QString QTextDecoder::toUnicode(const QByteArray &ba)
This is an overloaded function.
Converts the bytes in the byte array specified by ba to Unicode and returns the result.
void QTextDecoder::toUnicode(QString *target, const char *chars, int len)
This is an overloaded function.
The converted string is returned in target.