REBOL 3 Functions: to-relative-file

to-relative-file  file  /no-copy  /as-rebol  /as-local

Returns the relative portion of a file if in a subdirectory, or the original if not.

Arguments:

file [file! string!] - File to check (local if string!)

Refinements:

/no-copy - Don't copy, just reference

/as-rebol - Convert to REBOL-style filename if not

/as-local - Convert to local-style filename if not