factor/core/io/io.factor

109 lines
3.3 KiB
Factor

! Copyright (C) 2003, 2007 Slava Pestov.
! See http://factorcode.org/license.txt for BSD license.
USING: hashtables generic kernel math namespaces make sequences
continuations destructors assocs ;
IN: io
GENERIC: stream-readln ( stream -- str/f )
GENERIC: stream-read1 ( stream -- ch/f )
GENERIC: stream-read ( n stream -- str/f )
GENERIC: stream-read-until ( seps stream -- str/f sep/f )
GENERIC: stream-read-partial ( n stream -- str/f )
GENERIC: stream-write1 ( ch stream -- )
GENERIC: stream-write ( str stream -- )
GENERIC: stream-flush ( stream -- )
GENERIC: stream-nl ( stream -- )
GENERIC: stream-format ( str style stream -- )
GENERIC: make-span-stream ( style stream -- stream' )
GENERIC: make-block-stream ( style stream -- stream' )
GENERIC: make-cell-stream ( style stream -- stream' )
GENERIC: stream-write-table ( table-cells style stream -- )
: stream-print ( str stream -- )
[ stream-write ] keep stream-nl ;
: (stream-copy) ( in out -- )
64 1024 * pick stream-read-partial
[ over stream-write (stream-copy) ] [ 2drop ] if* ;
: stream-copy ( in out -- )
[ 2dup (stream-copy) ] [ dispose dispose ] [ ]
cleanup ;
! Default streams
SYMBOL: input-stream
SYMBOL: output-stream
SYMBOL: error-stream
: readln ( -- str/f ) input-stream get stream-readln ;
: read1 ( -- ch/f ) input-stream get stream-read1 ;
: read ( n -- str/f ) input-stream get stream-read ;
: read-until ( seps -- str/f sep/f ) input-stream get stream-read-until ;
: read-partial ( n -- str/f ) input-stream get stream-read-partial ;
: write1 ( ch -- ) output-stream get stream-write1 ;
: write ( str -- ) output-stream get stream-write ;
: flush ( -- ) output-stream get stream-flush ;
: nl ( -- ) output-stream get stream-nl ;
: format ( str style -- ) output-stream get stream-format ;
: with-input-stream* ( stream quot -- )
input-stream swap with-variable ; inline
: with-input-stream ( stream quot -- )
[ with-input-stream* ] curry with-disposal ; inline
: with-output-stream* ( stream quot -- )
output-stream swap with-variable ; inline
: with-output-stream ( stream quot -- )
[ with-output-stream* ] curry with-disposal ; inline
: with-streams* ( input output quot -- )
[ output-stream set input-stream set ] prepose with-scope ; inline
: with-streams ( input output quot -- )
[ [ with-streams* ] 3curry ]
[ [ drop dispose dispose ] 3curry ] 3bi
[ ] cleanup ; inline
: tabular-output ( style quot -- )
swap [ { } make ] dip output-stream get stream-write-table ; inline
: with-row ( quot -- )
{ } make , ; inline
: with-cell ( quot -- )
H{ } output-stream get make-cell-stream
[ swap with-output-stream ] keep , ; inline
: write-cell ( str -- )
[ write ] with-cell ; inline
: with-style ( style quot -- )
swap dup assoc-empty? [
drop call
] [
output-stream get make-span-stream swap with-output-stream
] if ; inline
: with-nesting ( style quot -- )
[ output-stream get make-block-stream ] dip
with-output-stream ; inline
: print ( string -- ) output-stream get stream-print ;
: bl ( -- ) " " write ;
: lines ( stream -- seq )
[ [ readln dup ] [ ] [ drop ] produce ] with-input-stream ;
: each-line ( quot -- )
[ [ readln dup ] ] dip [ drop ] while ; inline
: contents ( stream -- str )
[
[ 65536 read dup ] [ ] [ drop ] produce concat f like
] with-input-stream ;