Problem
There is a file A B.dxf that is failing to import in our application.
Debugging
Upon further investigation, I found the space between A and B is a non-breaking space (char 160) in the QString (Unicode), rather than a normal space (char 32). This may occur when copying a string form an HTML page and naming the file. This causes an issue when converting from QString to std::string, as the char 160 is converted to char 63 (‘?’), resulting in import failure.
# file is QString
QByteArray cdata = file.toLocal8Bit();
std:: string name(cdata);
Solution
- Replace char 160 to char 32 in QString and use QFile::rename to modify the file name on the cpmputer, but this approach would raise a permission issue as we would need to seek authorization before modifying the user’s file.
- Modify the data structure of the DXF class by changing the file path type from std::string to std::wstring using QString::toStdWString. However, this solution would require significant modifications to the menber variables and functions of DXF class and could introduce additional issues.
