2 \ ** ficl/softwords/jhlocal.fr
3 \ ** stack comment style local syntax...
4 \ { a b c | cleared -- d e }
5 \ variables before the "|" are initialized in reverse order
6 \ from the stack. Those after the "|" are zero initialized.
7 \ Anything between "--" and "}" is treated as comment
9 \ locstate: 0 = looking for | or -- or }}
15 \ $FreeBSD: src/sys/boot/ficl/softwords/jhlocal.fr,v 1.1.6.1 2000/07/06 23:51:46 obrien Exp $
20 : ?-- ( c-addr u -- c-addr u flag )
21 2dup s" --" compare 0= ;
22 : ?} ( c-addr u -- c-addr u flag )
23 2dup s" }" compare 0= ;
24 : ?| ( c-addr u -- c-addr u flag )
25 2dup s" |" compare 0= ;
27 \ examine name and push true if it's a 2local
28 \ (starts with '2'), false otherwise.
29 : ?2loc ( c-addr u -- c-addr n flag )
30 over c@ [char] 2 = if true else false endif ;
32 : ?delim ( c-addr u -- state | c-addr u 0 )
33 ?| if 2drop 1 exit endif
34 ?-- if 2drop 2 exit endif
35 ?} if 2drop 3 exit endif
44 0 dup locals| locstate |
46 \ stack locals until we hit a delimiter
48 parse-word \ ( nLocals c-addr u )
49 ?delim dup to locstate
51 rot 1+ \ ( c-addr u ... c-addr u nLocals )
54 \ now unstack the locals
56 ?2loc if (2local) else (local) endif
59 \ zero locals until -- or }
63 ?delim dup to locstate
66 postpone zero postpone zero (2local)
79 ?delim dup to locstate
85 locstate 3 <> abort" syntax error in { } local line"
86 ; immediate compile-only