--- gforth/ansi.fs 1996/01/07 17:22:07 1.3
+++ gforth/ansi.fs 2007/12/31 18:40:23 1.9
@@ -1,12 +1,12 @@
-\ ANSI.STR Define terminal attributes 20may93jaw
+\ ansi.fs Define terminal attributes 20may93jaw
-\ Copyright (C) 1995 Free Software Foundation, Inc.
+\ Copyright (C) 1995,1996,1997,1998,2001,2003 Free Software Foundation, Inc.
\ This file is part of Gforth.
\ Gforth is free software; you can redistribute it and/or
\ modify it under the terms of the GNU General Public License
-\ as published by the Free Software Foundation; either version 2
+\ as published by the Free Software Foundation, either version 3
\ of the License, or (at your option) any later version.
\ This program is distributed in the hope that it will be useful,
@@ -15,29 +15,31 @@
\ GNU General Public License for more details.
\ You should have received a copy of the GNU General Public License
-\ along with this program; if not, write to the Free Software
-\ Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
+\ along with this program. If not, see http://www.gnu.org/licenses/.
-\ If you want another terminal you can redefine
-\ the colours.
+\ If you want another terminal you can redefine the colours.
\ But a better way is it only to redefine SET-ATTR
\ to have compatible colours.
\ Attributes description:
-\ B ( colour -- x ) Colour is Background colour
-\ >F ( colour -- x ) Colour is Foreground colour
-\ Attributes may be used freely
-\ A> ( -1 x .. x -- attr )
-\ Return over all attribute
-\ only 12 Bits are used up to now!
+\ ( -1 x .. x -- attr ) Terminate an attributes description and
+\ return overall attribute; currently only
+\ 12 bits are used.
+\
+\ >BG ( colour -- x ) x is attribute with colour as Background colour
+\ >FG ( colour -- x ) x is attribute with colour as Foreground colour
+\
+\ SET-ATTR ( attr -- ) Send attributes to terminal
+\
+\ BG> ( attr -- colour) extract colour of Background from attr
+\ FG> ( attr -- colour) extract colour of Foreground from attr
+\
+\ See colorize.fs for an example of usage.
-\ SET-ATTR ( attr -- ) Send attributes to terminal
-
-\ To do: Make State smart and compile
-\ only literals!
+\ To do: Make State smart and only compile literals!
needs vt100.fs
@@ -59,11 +61,11 @@ decimal
\ For portable programs don't use invers and underline
-: >B 4 lshift ;
-: >F >B >B ;
+: >BG 4 lshift ;
+: >FG >BG >BG ;
-: B> 4 rshift 15 and ;
-: F> 8 rshift 15 and ;
+: BG> 4 rshift 15 and ;
+: FG> 8 rshift 15 and ;
: BEGIN over -1 <> WHILE or REPEAT nip ;
@@ -75,8 +77,8 @@ DEFER Attr!
: (Attr!) ( attr -- ) dup Attr @ = IF drop EXIT THEN
dup Attr !
ESC[ 0 pn
- dup F> ?dup IF 30 + ;pn THEN
- dup B> ?dup IF 40 + ;pn THEN
+ dup FG> ?dup IF 30 + ;pn THEN
+ dup BG> ?dup IF 40 + ;pn THEN
dup Bold and IF 1 ;pn THEN
dup Underline and IF 4 ;pn THEN
dup Blink and IF 5 ;pn THEN
@@ -85,7 +87,7 @@ DEFER Attr!
' (Attr!) IS Attr!
-: BlackSpace Attr @ dup B> Black =
+: BlackSpace Attr @ dup BG> Black =
IF drop space
ELSE 0 attr! space attr! THEN ;