collapseos/blk/357
Virgil Dupras 2d17b4e8ec Make string length-prefixed instead of null-terminated
I'm not sure why I chose null-terminated initially. Probably because
the z80asm version had null-terminated strings.

Length-prefixes strings are the traditional form of strings in Forth
and it's a bit easier to work with them with traditional forth words
when they're under this form.
2020-05-25 20:34:52 -04:00

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: _ ( a+1 len -- n f )
OVER C@ ( a len c )
'-' = IF
1- SWAP 1+ SWAP ( a+1 len-1 ) _ 0 ROT ( f 0 n )
- SWAP EXIT ( 0-n f )
THEN ( a len )
0 SWAP ( len ) 0 DO ( a r )
OVER I + C@ ( a r c ) _pdacc ( a r f )
IF DROP 1- 0 UNLOOP EXIT THEN LOOP ( a r )
NIP 1 ;
: (parsed) ( a -- n f ) C@+ ( a+1 l ) _ ;