gforth/kernel/saccept.fs - diff

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version 1.10, 2006/03/25 11:43:51	version 1.13, 2006/05/27 21:19:25
Line 23 require ./io.fs	Line 23 require ./io.fs
\ : xon $11 emit ;	\ : xon $11 emit ;
\ : xoff $13 emit ;	\ : xoff $13 emit ;

	Variable eof
	Variable echo -1 echo !

: accept ( adr len -- len )	: accept ( adr len -- len )
( xon ) over + over ( start end pnt )	( xon ) over + over ( start end pnt ) eof off
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 - ( xoff ) EXIT THEN	IF
#bs = IF 3 pick over <>	dup #cr = over #lf = or IF
IF 1 chars - #bs emit bl emit #bs emit ELSE bell THEN THEN	echo @ IF space THEN drop nip swap - ( xoff ) EXIT THEN
ELSE >r 2dup <> IF r> dup emit over c! char+ ELSE r> drop bell THEN	dup #eof = IF eof on THEN
	#bs = IF 2 pick over <>
	IF 1 chars -
	echo @ IF #bs emit bl emit #bs emit THEN
	ELSE echo @ IF bell THEN THEN THEN
	ELSE >r 2dup <> IF r>
	echo @ IF dup emit THEN
	over c! char+ ELSE r> drop bell THEN
THEN	THEN
AGAIN ;	AGAIN ;