QRegExp/W3CXmlSchema11: \p{P} (punctuation class) does not match '-'

According to http://www.regular-expressions.info/xml.html , http://www.regular-expressions.info/unicode.html
the regexp "\p

{P}" should match any punctuation, including dash ("-").
While the subset "\p{Pd}" matches "-", the more generic "\p{P}

" does not.

(Stumbled upon this in a real-world XML Schema I'm not authorized to share)

See unit test below: The first three QVERIFY pass, the last one fails; all four should pass.

diff --git a/tests/auto/qregexp/tst_qregexp.cpp b/tests/auto/qregexp/tst_qregexp.cpp
index d444558..11ed5d4 100644
— a/tests/auto/qregexp/tst_qregexp.cpp
+++ b/tests/auto/qregexp/tst_qregexp.cpp
@@ -74,6 +74,7 @@ private slots:
void testEscapingWildcard();
void testInvalidWildcard_data();
void testInvalidWildcard();
+ void testPunctuationDash();
void caretAnchoredOptimization();
void isEmpty();
void prepareEngineOptimization();
@@ -993,6 +994,19 @@ void tst_QRegExp::testInvalidWildcard()

{ QCOMPARE(re.isValid(), isValid); }

+void tst_QRegExp::testPunctuationDash()
+{
+ QRegExp re(QLatin1String("
p

{Pd}

"));
+ re.setPatternSyntax(QRegExp::W3CXmlSchema11);
+ QVERIFY(!re.exactMatch(QLatin1String(".")));
+ QVERIFY(re.exactMatch(QLatin1String("-")));
+
+ QRegExp re2(QLatin1String("
p

{P}

"));
+ re2.setPatternSyntax(QRegExp::W3CXmlSchema11);
+ QVERIFY(re2.exactMatch(QLatin1String(".")));
+ QVERIFY(re2.exactMatch(QLatin1String("-"))); //fails
+}
+
void tst_QRegExp::caretAnchoredOptimization()
{
QString s = "--babnana---";