105 lines
3.4 KiB
Factor
105 lines
3.4 KiB
Factor
! :folding=indent:collapseFolds=1:
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! $Id$
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!
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! Copyright (C) 2003, 2004 Slava Pestov.
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!
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! Redistribution and use in source and binary forms, with or without
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! modification, are permitted provided that the following conditions are met:
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!
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! 1. Redistributions of source code must retain the above copyright notice,
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! this list of conditions and the following disclaimer.
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!
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! 2. Redistributions in binary form must reproduce the above copyright notice,
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! this list of conditions and the following disclaimer in the documentation
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! and/or other materials provided with the distribution.
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!
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! THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES,
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! INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND
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! FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
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! DEVELOPERS AND CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
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! SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
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! PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
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! OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
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! WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
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! OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
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! ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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IN: streams
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USE: errors
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USE: kernel
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USE: namespaces
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! Generic functions, of sorts...
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: fflush ( stream -- )
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[ "fflush" get call ] bind ;
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: freadln ( stream -- string )
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[ "freadln" get call ] bind ;
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: fread# ( count stream -- string )
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[ "fread#" get call ] bind ;
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: fprint ( string stream -- )
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[ "fprint" get call ] bind ;
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: fwrite ( string stream -- )
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[ "fwrite" get call ] bind ;
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: fwrite-attr ( string stream -- )
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#! Write an attributed string to the given stream.
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#! The attributes are taken from the current namespace;
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#! supported keys depend on the type of stream.
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[ "fwrite-attr" get call ] bind ;
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: fedit ( string stream -- )
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[ "fedit" get call ] bind ;
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: fclose ( stream -- )
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[ "fclose" get call ] bind ;
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: <stream> ( -- stream )
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#! Create a stream object.
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<namespace> [
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( -- string )
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[ "freadln not implemented." throw ] "freadln" set
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( count -- string )
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[ "fread# not implemented." throw ] "fread#" set
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( string -- )
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[ "fwrite not implemented." throw ] "fwrite" set
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( string attrs -- )
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[ namespace fwrite ] "fwrite-attr" set
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( string -- )
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[ "fedit not implemented." throw ] "fedit" set
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( -- )
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[ ] "fflush" set
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( -- )
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[ ] "fclose" set
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( string -- )
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[ namespace fwrite "\n" namespace fwrite ] "fprint" set
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] extend ;
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: <extend-stream> ( stream -- stream )
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#! Create a stream that wraps another stream. Override some
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#! or all of the stream words.
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<stream> [
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"stream" set
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( -- string )
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[ "stream" get freadln ] "freadln" set
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( count -- string )
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[ "stream" get fread# ] "fread#" set
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( string -- )
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[ "stream" get fwrite ] "fwrite" set
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( string attrs -- )
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[ "stream" get fwrite-attr ] "fwrite-attr" set
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( string -- )
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[ "stream" get fedit ] "fedit" set
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( -- )
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[ "stream" get fflush ] "fflush" set
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( -- )
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[ "stream" get fclose ] "fclose" set
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( string -- )
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[ "stream" get fprint ] "fprint" set
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] extend ;
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