A DESCRIPTION OF THE PROBLEM :
as '/*' and '/-' are both allowed file names, these strings cannot be used to signify 'all files in directory, recursive or not.
Same for '<<ALL FILES>>'.
How to resolve that problem? Well in Unix only \0 and / are not allowed.
For windows i think \ is not allowed,
so the file separator.
about 0 i dont know.
If / represents the file separator, maybe ending in / can signify /*
and ending // recursive.

I wonder whether '.' and '..' are useable also.