Arguments: pathname &rest open-arguments
This function, new in release 6.0, returns a vector containing the
contents of the file specified by pathname (which
can be a string naming a file or a pathname object). The
open-arguments should be keyword/value pairs
suitable to be passed to the function open (but :direction
is not
accepted).
The element-type argument to open and accepted by this
function specifies the type of vector that will be created (which will
be upgraded-array-element-type applied to the
specified element-type). If element-type is not
specified, it defaults to character
and the result
is a string. For a byte array containing the file contents, specify
(unsigned-byte 8)
. Basically, the function is
intended for element-types character
and
(unsigned-byte 8)
. Specifying other element types
will work but may produce an unspecialized array (element-type t)
which would not be suitable as data when setf'ing this function.
The behavior if the file specified by pathname
does not exist is determined by the
if-does-not-exist argument (to open and thus to this
function). For this function, that argument defaults to nil
so nil
is returned if the file does not exist and
if-does-not-exist is unspecified.
This function is setf'able. The setf function has argument list
Arguments: vector pathname &rest open-arguments
The standard setf form is, of course:
(setf (file-contents pathname) vector)
The setf function also accepts keyword/value pairs
suitable to be passed to the function open, but :direction and :element-type are
not accepted. The element-type passed to open is the array-element-type of
vector. Warning: if the element-type of
the vector is not suitable as an element-type for open, the call to open will fail. t
is not
suitable as an element-type to open. character
and
(unsigned-byte 8)
are both, of course, suitable.
The documentation is described in introduction.htm and the index is in index.htm.
Copyright (c) 1998-2000, Franz Inc. Berkeley, CA., USA. All rights reserved.
Created 2000.10.5.