Does QRegExp::lastIndexIn work correct?

[Nebelig]

OK. Any suggestion about backward capturing using QRegExp? In my example I want get "_1234_" from position 5.

[Rachol]

What exactly do you want to capture?

[MarekR22]

Exactly explain what you are try to do (not how you are trying to achieve that).
I have gut feeling that you just need something like that (especially that your regular excretion is just a wild card):

QStringList items  = str.split("_", QString::SkipEmptyParts);

QStringList items  = str.split("_", QString::SkipEmptyParts);

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[Nebelig]

An example, a cursor in texteditor is inside the keyword:

blablabla get-deffunct|ion-list blalblabla (| <- cursor)

blablabla get-deffunct|ion-list blalblabla (| <- cursor)

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and I want detect is the word correct (get-deffunction-list) or not, if it is correct I need capture it.

It was a good idea for use reg expression for capturing left part and if it was correct get right part of word.

Searching word boundary (space, tabs etc) not a good idea, becouse:

bla blablabla>=get-deffunction-list!=blalblabla bla

bla blablabla>=get-deffunction-list!=blalblabla bla

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is correct to.

[MarekR22]

1. if you have editor then you should use QTextDocument::find-4
2. in regular expression there is assertion "\b" which means word boundary (you don't have to use space or other character to detect that), see QRegExp documentation.
example: QRegExp("\\b\\w+\\b");
3. check qt examples there is something similar to your problem.

[Nebelig]

MarekR22, thanks for the advice.