QRegularExpressionMatchIterator

The QRegularExpressionMatchIterator class provides an iterator on the results of a global match of a QRegularExpression object against a string. More

Inheritance diagram of PySide2.QtCore.QRegularExpressionMatchIterator

Synopsis

Functions

Detailed Description

A QRegularExpressionMatchIterator object is a forward only Java-like iterator; it can be obtained by calling the globalMatch() function. A new QRegularExpressionMatchIterator will be positioned before the first result. You can then call the hasNext() function to check if there are more results available; if so, the next() function will return the next result and advance the iterator.

Each result is a QRegularExpressionMatch object holding all the information for that result (including captured substrings).

For instance:

// extracts the words
QRegularExpression re("(\\w+)");
QString subject("the quick fox");
QRegularExpressionMatchIterator i = re.globalMatch(subject);
while (i.hasNext()) {
    QRegularExpressionMatch match = i.next();
    // ...
}

Moreover, QRegularExpressionMatchIterator offers a peekNext() function to get the next result without advancing the iterator.

You can retrieve the QRegularExpression object the subject string was matched against by calling the regularExpression() function; the match type and the match options are available as well by calling the matchType() and the matchOptions() respectively.

Please refer to the QRegularExpression documentation for more information about the Qt regular expression classes.

class QRegularExpressionMatchIterator

QRegularExpressionMatchIterator(iterator)

param iterator

QRegularExpressionMatchIterator

Constructs an empty, valid QRegularExpressionMatchIterator object. The regular expression is set to a default-constructed one; the match type to NoMatch and the match options to NoMatchOption .

Invoking the hasNext() member function on the constructed object will return false, as the iterator is not iterating on a valid sequence of matches.

Constructs a QRegularExpressionMatchIterator object as a copy of iterator .

See also

operator=()

PySide2.QtCore.QRegularExpressionMatchIterator.hasNext()
Return type

bool

Returns true if there is at least one match result ahead of the iterator; otherwise it returns false .

See also

next()

PySide2.QtCore.QRegularExpressionMatchIterator.isValid()
Return type

bool

Returns true if the iterator object was obtained as a result from the globalMatch() function invoked on a valid QRegularExpression object; returns false if the QRegularExpression was invalid.

PySide2.QtCore.QRegularExpressionMatchIterator.matchOptions()
Return type

MatchOptions

Returns the match options that were used to get this QRegularExpressionMatchIterator object, that is, the match options that were passed to globalMatch() .

PySide2.QtCore.QRegularExpressionMatchIterator.matchType()
Return type

MatchType

Returns the match type that was used to get this QRegularExpressionMatchIterator object, that is, the match type that was passed to globalMatch() .

PySide2.QtCore.QRegularExpressionMatchIterator.next()
Return type

QRegularExpressionMatch

Returns the next match result and advances the iterator by one position.

Note

Calling this function when the iterator is at the end of the result set leads to undefined results.

PySide2.QtCore.QRegularExpressionMatchIterator.peekNext()
Return type

QRegularExpressionMatch

Returns the next match result without moving the iterator.

Note

Calling this function when the iterator is at the end of the result set leads to undefined results.

PySide2.QtCore.QRegularExpressionMatchIterator.regularExpression()
Return type

QRegularExpression

Returns the QRegularExpression object whose globalMatch() function returned this object.

PySide2.QtCore.QRegularExpressionMatchIterator.swap(other)
Parameters

otherQRegularExpressionMatchIterator

Swaps the iterator other with this iterator object. This operation is very fast and never fails.