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;; Copyright (c) 1991-2002, The Numerical ALgorithms Group Ltd.
;; All rights reserved.
;; Copyright (C) 2007-2012, Gabriel Dos Reis.
;; All rights reserved.
;;
;; Redistribution and use in source and binary forms, with or without
;; modification, are permitted provided that the following conditions are
;; met:
;;
;; - Redistributions of source code must retain the above copyright
;; notice, this list of conditions and the following disclaimer.
;;
;; - Redistributions in binary form must reproduce the above copyright
;; notice, this list of conditions and the following disclaimer in
;; the documentation and/or other materials provided with the
;; distribution.
;;
;; - Neither the name of The Numerical ALgorithms Group Ltd. nor the
;; names of its contributors may be used to endorse or promote products
;; derived from this software without specific prior written permission.
;;
;; THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS
;; IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
;; TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A
;; PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER
;; OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
;; EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
;; PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
;; PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
;; LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
;; NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
;; SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
;;
;; Lisp support for cleaned up FileName domain.
;;
;; Created: June 20, 1991 (Stephen Watt)
;;
(import-module "sys-macros")
(in-package "BOOT")
;; E.g. "/" "/u/smwatt" "../src"
(defun |DirToString| (d)
(cond
((equal d '(:root)) "/")
((null d) "")
('t (string-right-trim "/" (namestring (make-pathname :directory d)))) ))
(defun |StringToDir| (s)
(cond
((string= s "/") '(:root))
((string= s "") nil)
('t
(let ((lastc (aref s (- (length s) 1))))
(if (char= lastc #\/)
(pathname-directory (concat s "name.type"))
(pathname-directory (concat s "/name.type")) ))) ))
(defun |myWritable?| (s)
(if (not (stringp s)) (|error| "``myWritable?'' requires a string arg."))
(if (string= s "") (setq s "."))
(if (not (|fnameExists?| s)) (setq s (|fnameDirectory| s)))
(if (string= s "") (setq s "."))
(if (> (|writeablep| s) 0) 't nil) )
(defun |fnameMake| (d n e)
(if (string= e "") (setq e nil))
(make-pathname :directory (|StringToDir| d) :name n :type e))
(defun |fnameDirectory| (f)
(|DirToString| (pathname-directory f)))
(defun |fnameName| (f)
(let ((s (pathname-name f)))
(if s s "") ))
(defun |fnameType| (f)
(let ((s (pathname-type f)))
(if s s "") ))
(defun |fnameExists?| (f)
(if (probe-file (namestring f)) 't nil))
(defun |fnameReadable?| (f)
(let ((s (open f :direction :input :if-does-not-exist nil)))
(cond (s (close s) 't) ('t nil)) )
)
(defun |fnameWritable?| (f)
(|myWritable?| (namestring f)) )
(defun |fnameNew| (d n e)
(if (not (|myWritable?| d))
nil
(do ((fn))
(nil)
(setq fn (|fnameMake| d (string (gensym n)) e))
(if (not (probe-file (namestring fn)))
(return-from |fnameNew| fn)) )))
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