factor/library/stdio.factor

! :folding=indent:collapseFolds=1:

! $Id$
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! Copyright (C) 2003, 2004 Slava Pestov.
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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 ;