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Fix compilation with -no-feature-regularexpression

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Change-Id: I4d213a266034d388af723337deeeb4cdd1f5cbdb
Reviewed-by: Friedemann Kleint <Friedemann.Kleint@qt.io>
This commit is contained in:
Joni Poikelin 2018-01-17 11:01:28 +02:00
parent 965bcca6d4
commit a87b549edf
1 changed files with 23 additions and 4 deletions
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27
src/plugins/platforms/windows/qwindowsdialoghelpers.cpp
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@ -65,7 +65,6 @@
#include <QtCore/QMutex>
#include <QtCore/QMutexLocker>
#include <QtCore/QUuid>
#include <QtCore/QRegularExpression>
#include <QtCore/QTemporaryFile>
#include <QtCore/private/qsystemlibrary_p.h>
@ -1153,12 +1152,32 @@ void QWindowsNativeFileDialogBase::setLabelText(QFileDialogOptions::DialogLabel
}
}
static bool isHexRange(const QString& s, int start, int end)
{
for (;start < end; ++start) {
QChar ch = s.at(start);
if (!(ch.isDigit()
|| (ch >= QLatin1Char('a') && ch <= QLatin1Char('f'))
|| (ch >= QLatin1Char('A') && ch <= QLatin1Char('F'))))
return false;
}
return true;
}
static inline bool isClsid(const QString &s)
{
// detect "374DE290-123F-4565-9164-39C4925E467B".
static const QRegularExpression pattern(QLatin1String("\\A[0-9A-Fa-f]{8}-[0-9A-Fa-f]{4}-[0-9A-Fa-f]{4}-[0-9A-Fa-f]{4}-[0-9A-Fa-f]{12}\\z"));
Q_ASSERT(pattern.isValid());
return pattern.match(s).hasMatch();
const QChar dash(QLatin1Char('-'));
return s.size() == 36
&& isHexRange(s, 0, 8)
&& s.at(8) == dash
&& isHexRange(s, 9, 13)
&& s.at(13) == dash
&& isHexRange(s, 14, 18)
&& s.at(18) == dash
&& isHexRange(s, 19, 23)
&& s.at(23) == dash
&& isHexRange(s, 24, 36);
}
void QWindowsNativeFileDialogBase::selectFile(const QString &fileName) const