version 1.5, 2000/09/23 15:06:11
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version 1.10, 2006/03/25 11:43:51
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\ a very simple accept approach |
\ a very simple accept approach |
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\ Copyright (C) 1995,1996,1997,1998,1999 Free Software Foundation, Inc. |
\ Copyright (C) 1995,1996,1997,1998,1999,2000,2003 Free Software Foundation, Inc. |
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\ This file is part of Gforth. |
\ This file is part of Gforth. |
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\ You should have received a copy of the GNU General Public License |
\ You should have received a copy of the GNU General Public License |
\ along with this program; if not, write to the Free Software |
\ along with this program; if not, write to the Free Software |
\ Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. |
\ Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111, USA. |
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require ./io.fs |
require ./io.fs |
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\ : xon $11 emit ; |
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\ : xoff $13 emit ; |
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: accept ( adr len -- len ) |
: accept ( adr len -- len ) |
over + over ( start end pnt ) |
( xon ) over + over ( start end pnt ) |
BEGIN |
BEGIN |
key dup #del = IF drop #bs THEN |
key dup #del = IF drop #bs THEN |
dup bl u< |
dup bl u< |
IF dup #cr = over #lf = or IF space drop nip swap - EXIT THEN |
IF dup #cr = over #lf = or IF space drop nip swap - ( xoff ) EXIT THEN |
#bs = IF 3 pick over <> |
#bs = IF 3 pick over <> |
IF 1 chars - #bs emit bl emit #bs emit ELSE bell THEN THEN |
IF 1 chars - #bs emit bl emit #bs emit ELSE bell THEN THEN |
ELSE >r 2dup <> IF r> dup emit over c! char+ ELSE r> drop bell THEN |
ELSE >r 2dup <> IF r> dup emit over c! char+ ELSE r> drop bell THEN |