MAP Composite Functions

MAP(X:list, FN:function):any eval, spread

Applies FN to successive CDR segments of X. NIL is returned.

EXPR PROCEDURE MAP(X, FN);

WHILE X DO << FN X; X := CDR X >>;

MAPC(X:list, FN:function):any eval, spread

FN is applied to successive CAR segments of list X. NIL is returned.

EXPR PROCEDURE MAPC(X, FN);

WHILE X DO << FN CAR X; X := CDR X >>;

MAPCAN(X:list, FN:function):any eval, spread

A concatenated list of FN applied to successive CAR elements of X is returned.

EXPR PROCEDURE MAPCAN(X, FN);

IF	NULL X THEN NIL

ELSE NCONC(FN CAR X, MAPCAN(CDR X, FN));

MAPCAR(X:list, FN:function):any eval, spread

Returned is a constructed list of FN applied to each CAR of list X.

EXPR PROCEDURE MAPCAR(X, FN);

IF	NULL X THEN NIL

ELSE FN CAR X . MAPCAR(CDR X, FN);

MAPCON(X:list, FN:function):any eval, spread

Returned is a concatenated list of FN applied to successive CDR segments of X.

EXPR PROCEDURE MAPCON(X, FN);

IF	NULL X THEN NIL

ELSE NCONC(FN X, MAPCON(CDR X, FN));

MAPLIST(X:list, FN:function):any eval, spread

Returns a constructed list of FN applied to successive CDR segments of X.

EXPR PROCEDURE MAPLIST(X, FN);

IF	NULL X THEN NIL

ELSE FN X . MAPLIST(CDR X, FN);