regex - QRegularExpression - How to extract string from between two <ca> tags? -

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I am trying to get the text in many tags as the following:

< Strong> Text file: 

  Internal auto-configured settings file ________________________________________ ((do not attempt to manually edit it)) ________________________________________ # Saved certificate: & lt; Ca & gt; Text that I want to remove & lt; / Ca & gt; ... & lt; Cert> Another lesson I want to remove & lt; / Cert & gt; ...

In my code I open the previous file and read its contents & amp; Store it in a QString So far, I have done the following without any success: 

  QRegularExpression regex ("& lt; ca & gt; (. *) & Lt; / ca & gt; ", QRegularExpression :: MultilineOption); QRegularExpressionMatch match = regex.match (content); QString ca = match.captured (1); QDebug () & lt; & Lt; CA; QDebug () & lt; & Lt; "\ N \ nDone !!";

& lt; & Lt; & lt; Cert> I did the same for , but I got an empty string for both.

Instead use QRegularExpression :: MultilineOption . The problem is that does not match the character of the new line in default mode.

Citing the document:

Dot Metaccharter (. ) Pattern string is allowed to match any character in the subject string , Which includes Newline (usually, does not match dot newline). This option corresponds to / s> modifier in Perl regular expression.

Be sure to & lt; / Ca & gt; The input is displayed only once.

If that is not the case, change your expression slightly: 

  "

This creates the quintifier lazy (instead of the default greedy), and this closest tag matches & lt; / ca & gt; .


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