pathname—a pathname designator.
defaults—a pathname designator.
The default is the value of
namestring—a string or
These functions convert pathname into a namestring. The name represented by pathname is returned as a namestring in an implementation-dependent canonical form.
namestring returns the full form of pathname.
file-namestring returns just the name, type, and version
components of pathname.
directory-namestring returns the directory name portion.
host-namestring returns the host name.
enough-namestring returns an abbreviated namestring
that is just sufficient to identify the file named by pathname
when considered relative to the defaults.
It is required that
(merge-pathnames (enough-namestring pathname defaults) defaults) ≡ (merge-pathnames (parse-namestring pathname nil defaults) defaults)
in all cases, and the result of
the shortest reasonable string that will satisfy this criterion.
It is not necessarily possible to construct a valid namestring by concatenating some of the three shorter namestrings in some order.
(namestring "getty") → "getty" (setq q (make-pathname :host "kathy" :directory (pathname-directory *default-pathname-defaults*) :name "getty")) → #S(PATHNAME :HOST "kathy" :DEVICE NIL :DIRECTORY directory-name :NAME "getty" :TYPE NIL :VERSION NIL) (file-namestring q) → "getty" (directory-namestring q) → directory-name (host-namestring q) → "kathy"
;;;Using Unix syntax and the wildcard conventions used by the ;;;particular version of Unix on which this example was created: (namestring (translate-pathname "/usr/dmr/hacks/frob.l" "/usr/d*/hacks/*.l" "/usr/d*/backup/hacks/backup-*.*")) → "/usr/dmr/backup/hacks/backup-frob.l" (namestring (translate-pathname "/usr/dmr/hacks/frob.l" "/usr/d*/hacks/fr*.l" "/usr/d*/backup/hacks/backup-*.*")) → "/usr/dmr/backup/hacks/backup-ob.l" ;;;This is similar to the above example but uses two different hosts, ;;;U: which is a Unix and V: which is a VMS. Note the translation ;;;of file type and alphabetic case conventions. (namestring (translate-pathname "U:/usr/dmr/hacks/frob.l" "U:/usr/d*/hacks/*.l" "V:SYS$DISK:[D*.BACKUP.HACKS]BACKUP-*.*")) → "V:SYS$DISK:[DMR.BACKUP.HACKS]BACKUP-FROB.LSP" (namestring (translate-pathname "U:/usr/dmr/hacks/frob.l" "U:/usr/d*/hacks/fr*.l" "V:SYS$DISK:[D*.BACKUP.HACKS]BACKUP-*.*")) → "V:SYS$DISK:[DMR.BACKUP.HACKS]BACKUP-OB.LSP"
truename, merge-pathnames, pathname (System Class), logical-pathname (System Class), Section 20.1 (File System Concepts), Section 19.1.2 (Pathnames as Filenames)