Examples of Merging Pathnames (ANSI and GNU Common Lisp Document)

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#### 19.2.3.1 Examples of Merging Pathnames

Although the following examples are possible to execute only in implementations which permit `:unspecific` in the indicated position andwhich permit four-letter type components, they serve to illustrate the basic concept of pathname merging.

     (pathname-type
       (merge-pathnames (make-pathname :type "LISP")
                        (make-pathname :type "TEXT")))
    ⇒  "LISP"

     (pathname-type
       (merge-pathnames (make-pathname :type nil)
                        (make-pathname :type "LISP")))
    ⇒  "LISP"

     (pathname-type
       (merge-pathnames (make-pathname :type :unspecific)
                        (make-pathname :type "LISP")))
    ⇒  :UNSPECIFIC