QJsonParseError Struct

The QJsonParseError struct is used to report errors during JSON parsing. More…

Header	`#include <QJsonParseError>`
CMake	`target_link_libraries(app PRIVATE Nt::Core)`
Module	Nt Core C++ Classes

List of all members, including inherited members

Public Types

enum	ParseError

Public Functions

QString

errorString() const

Public Variables

int	offset
ParseError	error

Detailed Description

QJsonDocument::fromJson() fills one in when it is given a pointer to it. error is NoError on success; otherwise offset is the byte offset in the input at which the parser noticed the problem.

QJsonParseError err;
QJsonDocument doc = QJsonDocument::fromJson(text, &err);
if (err.error != QJsonParseError::NoError)
    qWarning() << err.errorString() << "at" << err.offset;

See also QJsonDocument::fromJson().

Differences from Qt

The members start out as 0 and NoError instead of being uninitialized. The text of errorString() is not translated.

Member Type Documentation

enum QJsonParseError::ParseError

The kinds of error the parser reports.

Constant	Description
`QJsonParseError::NoError`	No error occurred
`QJsonParseError::UnterminatedObject`	An object is not correctly terminated with a closing curly bracket
`QJsonParseError::MissingNameSeparator`	A colon separating a name from its value is missing in an object
`QJsonParseError::UnterminatedArray`	An array is not correctly terminated with a closing square bracket
`QJsonParseError::MissingValueSeparator`	A comma separating different items is missing in an array or object
`QJsonParseError::IllegalValue`	The value is illegal
`QJsonParseError::TerminationByNumber`	The input stream ended while parsing a number
`QJsonParseError::IllegalNumber`	The number is not well formed
`QJsonParseError::IllegalEscapeSequence`	An illegal escape sequence occurred in the input
`QJsonParseError::IllegalUTF8String`	An illegal UTF-8 sequence occurred in the input
`QJsonParseError::UnterminatedString`	A string wasn't terminated with a quote
`QJsonParseError::MissingObject`	An object was expected but couldn't be found
`QJsonParseError::DeepNesting`	The JSON document is too deeply nested for the parser to parse it
`QJsonParseError::DocumentTooLarge`	The JSON document is too large for the parser to parse it
`QJsonParseError::GarbageAtEnd`	The parsed document contains additional garbage characters at the end

Member Function Documentation

QString QJsonParseError::errorString() const

Returns a text description of error.

Member Variable Documentation

ParseError QJsonParseError::error

The type of the error, or NoError.

int QJsonParseError::offset

The byte offset in the input at which the error was detected, or 0 if there was no error.