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;;; files.scm --- The R6RS file system library
;; Copyright (C) 2010 Free Software Foundation, Inc.
;;
;; This library is free software; you can redistribute it and/or
;; modify it under the terms of the GNU Lesser General Public
;; License as published by the Free Software Foundation; either
;; version 3 of the License, or (at your option) any later version.
;;
;; This library is distributed in the hope that it will be useful,
;; but WITHOUT ANY WARRANTY; without even the implied warranty of
;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
;; Lesser General Public License for more details.
;;
;; You should have received a copy of the GNU Lesser General Public
;; License along with this library; if not, write to the Free Software
;; Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
(library (rnrs files (6))
(export file-exists?
delete-file
&i/o make-i/o-error i/o-error?
&i/o-read make-i/o-read-error i/o-read-error?
&i/o-write make-i/o-write-error i/o-write-error?
&i/o-invalid-position
make-i/o-invalid-position-error
i/o-invalid-position-error?
i/o-error-position
&i/o-filename
make-i/o-filename-error
i/o-filename-error?
i/o-error-filename
&i/o-file-protection
make-i/o-file-protection-error
i/o-file-protection-error?
&i/o-file-is-read-only
make-i/o-file-is-read-only-error
i/o-file-is-read-only-error?
&i/o-file-already-exists
make-i/o-file-already-exists-error
i/o-file-already-exists-error?
&i/o-file-does-not-exist
make-i/o-file-does-not-exist-error
i/o-file-does-not-exist-error?
&i/o-port
make-i/o-port-error
i/o-port-error?
i/o-error-port)
(import (rename (only (guile) file-exists? delete-file catch @@)
(delete-file delete-file-internal))
(rnrs base (6))
(rnrs conditions (6))
(rnrs exceptions (6)))
(define (delete-file filename)
(catch #t
(lambda () (delete-file-internal filename))
(lambda (key . args) (raise (make-i/o-filename-error filename)))))
;; Condition types that are used by (rnrs files), (rnrs io ports), and
;; (rnrs io simple). These are defined here so as to be easily shareable by
;; these three libraries.
(define-condition-type &i/o &error make-i/o-error i/o-error?)
(define-condition-type &i/o-read &i/o make-i/o-read-error i/o-read-error?)
(define-condition-type &i/o-write &i/o make-i/o-write-error i/o-write-error?)
(define-condition-type &i/o-invalid-position
&i/o make-i/o-invalid-position-error i/o-invalid-position-error?
(position i/o-error-position))
(define-condition-type &i/o-filename
&i/o make-i/o-filename-error i/o-filename-error?
(filename i/o-error-filename))
(define-condition-type &i/o-file-protection
&i/o-filename make-i/o-file-protection-error i/o-file-protection-error?)
(define-condition-type &i/o-file-is-read-only
&i/o-file-protection make-i/o-file-is-read-only-error
i/o-file-is-read-only-error?)
(define-condition-type &i/o-file-already-exists
&i/o-filename make-i/o-file-already-exists-error
i/o-file-already-exists-error?)
(define-condition-type &i/o-file-does-not-exist
&i/o-filename make-i/o-file-does-not-exist-error
i/o-file-does-not-exist-error?)
(define-condition-type &i/o-port &i/o make-i/o-port-error i/o-port-error?
(port i/o-error-port))
)
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