61 lines
1.3 KiB
Factor
61 lines
1.3 KiB
Factor
! Copyright (C) 2004, 2005 Slava Pestov.
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! See http://factor.sf.net/license.txt for BSD license.
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IN: ansi
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USING: lists kernel namespaces stdio streams strings
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presentation generic ;
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! <ansi-stream> raps the given stream in an ANSI stream. ANSI
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! streams support the following character attributes:
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! bold - if not f, text is boldface.
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! ansi-fg - foreground color
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! ansi-bg - background color
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! black 0
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! red 1
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! green 2
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! yellow 3
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! blue 4
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! magenta 5
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! cyan 6
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! white 7
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: clear ( -- code )
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#! Clear screen
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"\e[2J\e[H" ; inline
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: reset ( -- code )
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#! Reset ANSI color codes.
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"\e[0m" ; inline
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: bold ( -- code )
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#! Switch on boldface.
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"\e[1m" ; inline
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: fg ( color -- code )
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#! Set foreground color.
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"\e[3" swap "m" cat3 ; inline
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: bg ( color -- code )
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#! Set foreground color.
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"\e[4" swap "m" cat3 ; inline
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: ansi-attrs ( style -- )
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"bold" over assoc [ bold , ] when
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"ansi-fg" over assoc [ fg , ] when*
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"ansi-bg" over assoc [ bg , ] when*
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drop ;
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: ansi-attr-string ( string style -- string )
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[ ansi-attrs , reset , ] make-string ;
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WRAPPER: ansi-stream
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M: ansi-stream fwrite-attr ( string style stream -- )
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>r [ default-style ] unless* ansi-attr-string r>
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ansi-stream-delegate fwrite ;
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IN: shells
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: ansi
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stdio [ <ansi-stream> ] change tty ;
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