Could not display correctly when single quotes are not correctly closed
Extra characters are displayed after the end of line when single quotes are not correctly closed.

It happens when I add an unclosed single quote ' at the end of a line and append some spaces after the quote.
The same situation does not appear when using double quotes.
By the way, I am using Dev-C++ 6.7.5, and there is another problem besides the one mentioned above. The analyzer can't correctly handle the C++ library of Clang's, which is from Clang64 repo of MSYS2.
Redpanda Dev-C++ 6, which was built with delphi 7, has been deprecated.
The beta version of its successor (Redpanda Dev-C++ 7, built on top of QT) is about to come this month.