File:  [gforth] / gforth / ansi.fs
Revision 1.3: download - view: text, annotated - select for diffs
Sun Jan 7 17:22:07 1996 UTC (25 years, 4 months ago) by anton
Branches: MAIN
CVS tags: v0-3-0, v0-2-1, v0-2-0, HEAD
added more.fs for people with old terminals.
WORDS and SEE now now respect the terminal size.
a lot of reordering in the Makefile, approaching the GNU standards.
factored NAME>STRING out of many words.
use AC_DECL_SYS_SIGLIST test in configure.in.
removed emitcounter (it was not used anyway).
SYSTEM now unpreps and repreps the terminal.
fixed byg in prims2x.fs.
added NEEDS, ?CSP, !CSP.
rewrote ALIAS?.

    1: \ ANSI.STR      Define terminal attributes              20may93jaw
    2: 
    3: \ Copyright (C) 1995 Free Software Foundation, Inc.
    4: 
    5: \ This file is part of Gforth.
    6: 
    7: \ Gforth is free software; you can redistribute it and/or
    8: \ modify it under the terms of the GNU General Public License
    9: \ as published by the Free Software Foundation; either version 2
   10: \ of the License, or (at your option) any later version.
   11: 
   12: \ This program is distributed in the hope that it will be useful,
   13: \ but WITHOUT ANY WARRANTY; without even the implied warranty of
   14: \ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
   15: \ GNU General Public License for more details.
   16: 
   17: \ You should have received a copy of the GNU General Public License
   18: \ along with this program; if not, write to the Free Software
   19: \ Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
   20: 
   21: 
   22: \ If you want another terminal you can redefine
   23: \ the colours.
   24: 
   25: \ But a better way is it only to redefine SET-ATTR
   26: \ to have compatible colours.
   27: 
   28: \ Attributes description:
   29: \ <A ( -- -1 )       Entry attributes description
   30: \ >B ( colour -- x ) Colour is Background colour
   31: \ >F ( colour -- x ) Colour is Foreground colour
   32: \                    Attributes may be used freely
   33: \ A> ( -1 x .. x -- attr )
   34: \                    Return over all attribute
   35: \                    only 12 Bits are used up to now!
   36: 
   37: \ SET-ATTR ( attr -- ) Send attributes to terminal
   38: 
   39: \ To do:        Make <A A> State smart and compile
   40: \               only literals!
   41: 
   42: needs vt100.fs
   43: 
   44: decimal
   45: 
   46: 0 CONSTANT Black
   47: 1 CONSTANT Red
   48: 2 CONSTANT Green
   49: 3 CONSTANT Yellow
   50: 4 CONSTANT Blue
   51: 5 CONSTANT Brown
   52: 6 CONSTANT Cyan
   53: 7 CONSTANT White
   54: 
   55: 1 CONSTANT Bold
   56: 2 CONSTANT Underline
   57: 4 CONSTANT Blink
   58: 8 CONSTANT Invers
   59: 
   60: \ For portable programs don't use invers and underline
   61: 
   62: : >B    4 lshift ;
   63: : >F    >B >B ;
   64: 
   65: : B>    4 rshift 15 and ;
   66: : F>    8 rshift 15 and ;
   67: 
   68: : <A    -1 0 ;
   69: : A>    BEGIN over -1 <> WHILE or REPEAT nip ;
   70: 
   71: VARIABLE Attr   -1 Attr !
   72: 
   73: DEFER Attr!
   74: 
   75: : (Attr!)       ( attr -- ) dup Attr @ = IF drop EXIT THEN
   76:                 dup Attr !
   77:                 ESC[    0 pn
   78:                         dup F> ?dup IF 30 + ;pn THEN
   79:                         dup B> ?dup IF 40 + ;pn THEN
   80:                         dup Bold and IF 1 ;pn THEN
   81:                         dup Underline and IF 4 ;pn THEN
   82:                         dup Blink and IF 5 ;pn THEN
   83:                         Invers and IF 7 ;pn THEN
   84:                         [char] m emit ;
   85: 
   86: ' (Attr!) IS Attr!
   87: 
   88: : BlackSpace    Attr @ dup B> Black =
   89:                 IF drop space
   90:                 ELSE 0 attr! space attr! THEN ;
   91: 

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