FixFileName

removes invalid symbols from a filename taking the OS into account, automatically or by specifying a

FIXFILENAME (oldfilename, sysname, usespaces, eightthree) removes such invalid symbols from a filename taking the OS into account, automatically or by specifying as a parameter

You should update the definitions in the switch statement; I did not
take much care in researching them.

INPUTS DEFINITION DEFAULT VALUE
OLDFILENAME input {'adhj?*.8&a','AC li*e.cfg','Lo%g.txt'};
SYSNAME specified OS automatic
USESPACES include spaces? 1
EIGHTTHREE use 8.3 format 0
EXTENDASCII Use chars 128-255 1

OUTPUTS
NEWFILENAME

USAGE
disp('USE DEFAULT');
disp('fixfilename');
fixfilename

disp('SPECIFY IN AND OS');
disp('fixfilename({''adhj?*.8&a'',''AC li*e.cfg'',''Lo%g.txt''},''DOS''))');
fixfilename({'adhj?*.8&a','AC li*e.cfg','Lo%g.txt'},'DOS')

disp('SPECIFY IN, OS and USESPACES');
disp('fixfilename({''adhj?*.8&a'',''AC li*e.cfg'',''Lo%g.txt''},''WIN'',1)');
fixfilename({'adhj?*.8&a','AC li*e.cfg','Lo%g.txt'},'WIN',1)

disp('SPECIFY IN, OS, not USESPACES and EIGHTTHREE');
disp('fixfilename({''adhj?*.8&a'',''AC li*e.cfg'',''Lo%g.txt''},''WIN'',0,1)');
fixfilename({'adhj?*.8&a','AC li*e.cfg','Lo%g.txt'},'WIN',0,1)

disp('SPECIFY IN, not USESPACES and EIGHTTHREE WHILE LETTING THE FUNCTION');
disp('SPECIFY THE os');
disp('fixfilename({''adhj?*.8&a'',''AC li*e.cfg'',''Lo%g.txt''},[],0,1)');
fixfilename({'adhj?*.8&a','AC li*e.cfg','Lo%g.txt'},[],0,1)

IT'S NOT FANCY, BUT IT WORKS