version 1.16, 2005/01/13 21:26:46
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version 1.17, 2005/11/05 23:26:49
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Line 27 $80 Value max-single-byte
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Line 27 $80 Value max-single-byte
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: u8len ( u8 -- n ) |
: u8len ( u8 -- n ) |
dup max-single-byte u< IF drop 1 EXIT THEN \ special case ASCII |
dup max-single-byte u< IF drop 1 EXIT THEN \ special case ASCII |
$800 2 >r |
$800 2 >r |
BEGIN 2dup u>= WHILE 5 lshift r> 1+ >r REPEAT |
BEGIN 2dup u>= WHILE 5 lshift r> 1+ >r dup 0= UNTIL THEN |
2drop r> ; |
2drop r> ; |
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: u8@+ ( u8addr -- u8addr' u ) |
: u8@+ ( u8addr -- u8addr' u ) |
count dup max-single-byte u< ?EXIT \ special case ASCII |
count dup max-single-byte u< ?EXIT \ special case ASCII |
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dup $C2 u< IF UTF-8-err throw THEN \ malformed character |
$7F and $40 >r |
$7F and $40 >r |
BEGIN dup r@ and WHILE r@ xor |
BEGIN dup r@ and WHILE r@ xor |
6 lshift r> 5 lshift >r >r count |
6 lshift r> 5 lshift >r >r count |
Line 72 $80 Value max-single-byte
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Line 73 $80 Value max-single-byte
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: u8key ( -- u ) |
: u8key ( -- u ) |
defers key dup max-single-byte u< ?EXIT \ special case ASCII |
defers key dup max-single-byte u< ?EXIT \ special case ASCII |
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dup $C2 u< IF UTF-8-err throw THEN \ malformed character |
$7F and $40 >r |
$7F and $40 >r |
BEGIN dup r@ and WHILE r@ xor |
BEGIN dup r@ and WHILE r@ xor |
6 lshift r> 5 lshift >r >r defers key |
6 lshift r> 5 lshift >r >r defers key |