diff options
Diffstat (limited to 'src/corelib/io/qfilesystementry.cpp')
-rw-r--r-- | src/corelib/io/qfilesystementry.cpp | 28 |
1 files changed, 28 insertions, 0 deletions
diff --git a/src/corelib/io/qfilesystementry.cpp b/src/corelib/io/qfilesystementry.cpp index c061f58e87..bb39a46642 100644 --- a/src/corelib/io/qfilesystementry.cpp +++ b/src/corelib/io/qfilesystementry.cpp @@ -288,6 +288,34 @@ bool QFileSystemEntry::isDriveRootPath(const QString &path) && path.at(0).isLetter() && path.at(1) == QLatin1Char(':') && path.at(2) == QLatin1Char('/')); } + +QString QFileSystemEntry::removeUncOrLongPathPrefix(QString path) +{ + constexpr qsizetype minPrefixSize = 4; + if (path.size() < minPrefixSize) + return path; + + auto data = path.data(); + const auto slash = path[0]; + if (slash != u'\\' && slash != u'/') + return path; + + // check for "//?/" or "/??/" + if (data[2] == u'?' && data[3] == slash && (data[1] == slash || data[1] == u'?')) { + path = path.sliced(minPrefixSize); + + // check for a possible "UNC/" prefix left-over + if (path.size() >= 4) { + data = path.data(); + if (data[0] == u'U' && data[1] == u'N' && data[2] == u'C' && data[3] == slash) { + data[2] = slash; + return path.sliced(2); + } + } + } + + return path; +} #endif // Q_OS_WIN bool QFileSystemEntry::isRootPath(const QString &path) |