c++ - QRegExp and double-quoted text for QSyntaxHighlighter -

what qregexp pattern capturing quoted text qsyntaxhighlighter?

test pattern

"one" or "two" or "three"

so far have tried:

qregexp rx("\\0042.*\\0042"); qregexp rx("(\\0042).*?\\1"); 

the last pattern succeeds on regexpal.com not qregexp class.

edit: if check out syntax highlighter example, has 1 in there.

http://qt-project.org/doc/qt-4.8/richtext-syntaxhighlighter-highlighter-cpp.html

 quotationformat.setforeground(qt::darkgreen);  rule.pattern = qregexp("\".*\"");  rule.format = quotationformat;  highlightingrules.append(rule); 

just copy of code qt's highlighter example , should set.

greedy v. lazy match in qregex

in description of qt's variation on regex, says:

note: quantifiers "greedy". match text can. example, 0+ matches first 0 finds , consecutive zeros after first zero. applied '20005', matches'20005'. quantifiers can made non-greedy, see setminimal().

if use setminimal(true) effect of lazy matching instead of greedy matching, can pull off. other regex evaluators use *? or +? perform lazy match. use gskinner's regex engine test expressions.

below code looking for. based heavily on example given here.

#include <qcoreapplication> #include <qregexp> #include <qdebug> #include <qstringlist>  int main(int argc, char *argv[]) {     qcoreapplication a(argc, argv);      qstring str = "\"one\" or \"two\" or \"three\"";      qregexp rx("\".*\"");     rx.setminimal(true);      int count = 0;      int pos = 0;      while ((pos = rx.indexin(str, pos)) != -1) {          ++count;          pos += rx.matchedlength();          qdebug() << rx.cap();      }      return a.exec(); } 

hope helps.