Annotation of gforth/kernel/saccept.fs, revision 1.5
1.1 anton 1: \ a very simple accept approach
1.5 ! anton 3: \ Copyright (C) 1995,1996,1997,1998,1999 Free Software Foundation, Inc.
1.1 anton 4:
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.
1.4 jwilke 21: require ./io.fs
1.2 pazsan 23: : accept ( adr len -- len )
1.1 anton 24: over + over ( start end pnt )
1.2 pazsan 26: key dup #del = IF drop #bs THEN
1.1 anton 27: dup bl u<
1.2 pazsan 28: IF dup #cr = over #lf = or IF space drop nip swap - EXIT THEN
29: #bs = IF 3 pick over <>
30: IF 1 chars - #bs emit bl emit #bs emit ELSE bell THEN THEN
31: ELSE >r 2dup <> IF r> dup emit over c! char+ ELSE r> drop bell THEN
1.1 anton 32: THEN
33: AGAIN ;