do-all-words-while:chainlist — compiling primitive
EXTENSIONS
DO-ALL-WORDS-WHILE
( wordlist* "word" -- )( | ); |
| ; |
EXECUTE each entry in the wordlist in the reverse order defined but only as long as after EXECUTE of "word" a TRUE flag is left on the stack. The wordlist execution is cut when a FALSE flag is seen. (the current wordlist entry is _not_ on the stack!)
: DO-ALL-WORDS-WHILE '
STATE @ IF LITERAL, COMPILE DO-ALL-WORDS-WHILE-LOOP EXIT THEN
>R 0 FIRST-NAME
BEGIN ?DUP WHILE
R@ EXECUTE 0= IF R>DROP DROP EXIT THEN
DUP NAME> EXECUTE
NAME-NEXT
REPEAT R>DROP
;
to run the NEW-WORDLIST in original order, use REDO-ALL-WORDS