Path

What make a path valid?

A path must be a non empty string.
A "Unix" type representation of paths must be used - The separator used for directories is /.
The maximum size of a path is 255 characters.
Each member of the path must be a valid filename (as described here)

Example of valid path

/file.txt
file.txt
/a/a
/a/[a].txt

Exemaple of invalid path

//file.txt
file.txt/
/a//a
/a/[a].txt/
/a/con
/a/con.txt
con/a.txt
abcdefghijklmnopqrstuvwxyzabcdefghijklmnopqrstuvwxyzabcdefghijklmnopqrstuvwxyzabcdefghijklmnopqrstuvwxyzabcdefghijklmnopqrstuvwxyzabcdefghijklmnopqrstuvwxyzabcdefghijklmnopqrstuvwxyzabcdefghijklmnopqrstuvwxyzabcdefghijklmnopqrstuvwxyzabcdefghijklmnopqrstuvwxyzabcdefghijklmnopqrstuvwxyz.txt