pathname-name

(pathname-name pathname)

The file-name component of a namestring, without its type: everything after the last / and before the LAST dot. A dot at position 0 is part of the name rather than a type separator, and a namestring that names no file -- one ending in / -- answers nil.

Takes a pathname or a namestring; the split is pure string work on the namestring -- nothing is read from the filesystem and a nonexistent path answers just the same. It splits by exactly the rule pathname-type uses for the other half, and the one make-pathname defaults :defaults with, so the three can never disagree.

(pathname-name "d/a") is "a", (pathname-name "d/.a") is ".a", (pathname-name "d/a.b.c") is "a.b", and (pathname-name "d/") is NIL.

A name that is exactly * answers :WILD -- the keyword make-pathname builds it from, so decomposition is the inverse of construction here too.

Backend support

All four backends -- one definition in rontolisp source over primitives every backend has.