pathname pathspec pathname

    Arguments and Values

    pathspec — a pathname designator.

    pathname — a pathname.


    Returns the pathname denoted by pathspec.

    If the pathspec designator is a stream, the stream can be either open or closed; in both cases, the pathname returned corresponds to the filename used to open the file. pathname returns the same pathname for a file stream after it is closed as it did when it was open.

    If the pathspec designator is a file stream created by opening a logical pathname, a logical pathname is returned.

     ;; There is a great degree of variability permitted here.  The next 
     ;; several examples are intended to illustrate just a few of the many 
     ;; possibilities.  Whether the name is canonicalized to a particular 
     ;; case (either upper or lower) depends on both the file system and the 
     ;; implementation since two different implementations using the same 
     ;; file system might differ on many issues.  How information is stored 
     ;; internally (and possibly presented in #S notation) might vary, 
     ;; possibly requiring `accessors' such as PATHNAME-NAME to perform case 
     ;; conversion upon access.  The format of a namestring is dependent both 
     ;; on the file system and the implementation since, for example, one 
     ;; implementation might include the host name in a namestring, and 
     ;; another might not.  #S notation would generally only be used in a 
     ;; situation where no appropriate namestring could be constructed for use 
     ;; with #P. 
     (setq p1 (pathname "test")) 
     #P"CHOCOLATE:TEST" ; with case canonicalization (e.g., VMS) 
    or  #P"VANILLA:test"   ; without case canonicalization (e.g., Unix) 
    or  #P"test" 
     (setq p2 (pathname "test")) 
    or  #P"VANILLA:test" 
    or  #P"test" 
     (pathnamep p1)  true 
     (eq p1 (pathname p1))  true 
     (eq p1 p2) 
    or  false 
     (with-open-file (stream "test" :direction :output) 
       (pathname stream)) 
    See Also

    pathname, logical-pathname, Section 20.1 (File System Concepts), Section 19.1.2 (Pathnames as Filenames)