factor/library/extend-stream.factor

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! :folding=indent:collapseFolds=1:
! $Id$
!
! Copyright (C) 2004 Slava Pestov.
!
! Redistribution and use in source and binary forms, with or without
! modification, are permitted provided that the following conditions are met:
!
! 1. Redistributions of source code must retain the above copyright notice,
! this list of conditions and the following disclaimer.
!
! 2. 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.
!
! THIS SOFTWARE IS PROVIDED ``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
! DEVELOPERS AND 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.
IN: streams
USE: errors
USE: kernel
USE: namespaces
USE: stack
USE: stdio
USE: strings
: <extend-stream> ( stream -- stream )
#! Create a stream that wraps another stream. Override some
#! or all of the stream words.
<stream> [
"stdio" set
( -- string )
[ read ] "freadln" set
( -- string )
[ read1 ] "fread1" set
( count -- string )
[ read# ] "fread#" set
( string -- )
[ write ] "fwrite" set
( string style -- )
[ write-attr ] "fwrite-attr" set
( string -- )
[ edit ] "fedit" set
( -- )
[ flush ] "fflush" set
( -- )
[ "stdio" get fclose ] "fclose" set
( string -- )
[ print ] "fprint" set
] extend ;