Fixed bug where isalpha was called on non-ASCII bytes causing error reports with Visual Studio.
Fixed bug where isalpha was called on non-ASCII bytes causing error
reports with Visual Studio.

R1dO/scintilla_clone,R1dO/scintilla_clone,R1dO/scintilla_clone,R1dO/scintilla_clone,R1dO/scintilla_clone,R1dO/scintilla_clone,R1dO/scintilla_clone,R1dO/scintilla_clone