factor/library/stdio.factor

89 lines
2.6 KiB
Factor

! :folding=indent:collapseFolds=1:
! $Id$
!
! Copyright (C) 2003, 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: stdio
USE: errors
USE: kernel
USE: namespaces
USE: stack
USE: streams
: <stdio-stream> ( stream -- stream )
#! We disable fclose on stdio so that various tricks like
#! with-stream can work.
clone [
( string -- )
[
namespace fwrite
"\n" namespace fwrite
namespace fflush
] "fprint" set
[ ] "fclose" set
] extend ;
: flush ( -- )
"stdio" get fflush ;
: read ( -- string )
"stdio" get freadln ;
: read1 ( count -- string )
"stdio" get fread1 ;
: read# ( count -- string )
"stdio" get fread# ;
: write ( string -- )
"stdio" get fwrite ;
: write-attr ( string style -- )
#! Write an attributed string to standard output.
"stdio" get fwrite-attr ;
: print ( string -- )
"stdio" get tuck fprint fflush ;
: edit ( string -- )
"stdio" get fedit ;
: terpri ( -- )
#! Print a newline to standard output.
"\n" write ;
: with-stream ( stream quot -- )
[
swap "stdio" set [ "stdio" get fclose rethrow ] catch
] with-scope ;
: with-string ( quot -- str )
#! Execute a quotation, and push a string containing all
#! text printed by the quotation.
1024 <string-output-stream> [
call "stdio" get stream>str
] with-stream ;