1\ ** ficl/softwords/ifbrack.fr 2\ ** ANS conditional compile directives [if] [else] [then] 3\ ** Requires ficl 2.0 or greater... 4\ 5\ $FreeBSD$ 6 7hide 8 9: ?[if] ( c-addr u -- c-addr u flag ) 10 2dup s" [if]" compare-insensitive 0= 11; 12 13: ?[else] ( c-addr u -- c-addr u flag ) 14 2dup s" [else]" compare-insensitive 0= 15; 16 17: ?[then] ( c-addr u -- c-addr u flag ) 18 2dup s" [then]" compare-insensitive 0= >r 19 2dup s" [endif]" compare-insensitive 0= r> 20 or 21; 22 23set-current 24 25: [else] ( -- ) 26 1 \ ( level ) 27 begin 28 begin 29 parse-word dup while \ ( level addr len ) 30 ?[if] if \ ( level addr len ) 31 2drop 1+ \ ( level ) 32 else \ ( level addr len ) 33 ?[else] if \ ( level addr len ) 34 2drop 1- dup if 1+ endif 35 else 36 ?[then] if 2drop 1- else 2drop endif 37 endif 38 endif ?dup 0= if exit endif \ level 39 repeat 2drop \ level 40 refill 0= until \ level 41 drop 42; immediate 43 44: [if] ( flag -- ) 450= if postpone [else] then ; immediate 46 47: [then] ( -- ) ; immediate 48: [endif] ( -- ) ; immediate 49 50previous 51