[gforth] / gforth / ansi.fs  

gforth: gforth/ansi.fs

Diff for /gforth/ansi.fs between version 1.5 and 1.6

version 1.5, Sat Sep 23 15:46:51 2000 UTC version 1.6, Thu Jun 14 19:10:23 2001 UTC
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 \ ANSI.STR      Define terminal attributes              20may93jaw  \ ansi.fs      Define terminal attributes              20may93jaw
   
 \ Copyright (C) 1995,1996,1997,1998 Free Software Foundation, Inc.  \ Copyright (C) 1995,1996,1997,1998 Free Software Foundation, Inc.
   
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 \ Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111, USA.  \ Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111, USA.
   
   
 \ If you want another terminal you can redefine  \ If you want another terminal you can redefine the colours.
 \ the colours.  
   
 \ But a better way is it only to redefine SET-ATTR  \ But a better way is it only to redefine SET-ATTR
 \ to have compatible colours.  \ to have compatible colours.
   
 \ Attributes description:  \ Attributes description:
 \ <A ( -- -1 )       Entry attributes description  \ <A ( -- -1 0 )           Start attributes description
 \ >B ( colour -- x ) Colour is Background colour  \ A> ( -1 x .. x -- attr ) Terminate an attributes description and
 \ >F ( colour -- x ) Colour is Foreground colour  \                          return overall attribute; currently only
 \                    Attributes may be used freely  \                          12 bits are used.
 \ A> ( -1 x .. x -- attr )  \
 \                    Return over all attribute  \ >BG ( colour -- x )      x is attribute with colour as Background colour
 \                    only 12 Bits are used up to now!  \ >FG ( colour -- x )      x is attribute with colour as Foreground colour
   \
 \ SET-ATTR ( attr -- ) Send attributes to terminal  \ 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.
   
 \ To do:        Make <A A> State smart and compile  \ To do:        Make <A A> State smart and only compile literals!
 \               only literals!  
   
 needs vt100.fs  needs vt100.fs
   
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 \ For portable programs don't use invers and underline  \ For portable programs don't use invers and underline
   
 : >B    4 lshift ;  : >BG    4 lshift ;
 : >F    >B >B ;  : >FG    >BG >BG ;
   
 : B>    4 rshift 15 and ;  : BG>    4 rshift 15 and ;
 : F>    8 rshift 15 and ;  : FG>    8 rshift 15 and ;
   
 : <A    -1 0 ;  : <A    -1 0 ;
 : A>    BEGIN over -1 <> WHILE or REPEAT nip ;  : A>    BEGIN over -1 <> WHILE or REPEAT nip ;
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 : (Attr!)       ( attr -- ) dup Attr @ = IF drop EXIT THEN  : (Attr!)       ( attr -- ) dup Attr @ = IF drop EXIT THEN
                 dup Attr !                  dup Attr !
                 ESC[    0 pn                  ESC[    0 pn
                         dup F> ?dup IF 30 + ;pn THEN                          dup FG> ?dup IF 30 + ;pn THEN
                         dup B> ?dup IF 40 + ;pn THEN                          dup BG> ?dup IF 40 + ;pn THEN
                         dup Bold and IF 1 ;pn THEN                          dup Bold and IF 1 ;pn THEN
                         dup Underline and IF 4 ;pn THEN                          dup Underline and IF 4 ;pn THEN
                         dup Blink and IF 5 ;pn THEN                          dup Blink and IF 5 ;pn THEN
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 ' (Attr!) IS Attr!  ' (Attr!) IS Attr!
   
 : BlackSpace    Attr @ dup B> Black =  : BlackSpace    Attr @ dup BG> Black =
                 IF drop space                  IF drop space
                 ELSE 0 attr! space attr! THEN ;                  ELSE 0 attr! space attr! THEN ;
   

Generate output suitable for use with a patch program
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  Added in v.1.6
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