Annotation of gforth/kernel/saccept.fs, revision 1.2
1.1 anton 1: \ a very simple accept approach
3: \ Copyright (C) 1995-1997 Free Software Foundation, Inc.
5: \ This file is part of Gforth.
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.
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.
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.
1.2 ! pazsan 21: : accept ( adr len -- len )
1.1 anton 22: over + over ( start end pnt )
1.2 ! pazsan 24: key dup #del = IF drop #bs THEN
1.1 anton 25: dup bl u<
1.2 ! pazsan 26: IF dup #cr = over #lf = or IF space drop nip swap - EXIT THEN
! 27: #bs = IF 3 pick over <>
! 28: IF 1 chars - #bs emit bl emit #bs emit ELSE bell THEN THEN
! 29: ELSE >r 2dup <> IF r> dup emit over c! char+ ELSE r> drop bell THEN
1.1 anton 30: THEN
31: AGAIN ;