3.2.1 Overview of mapcar-like Functions

The following functions are analogous to mapc/mapcar/mapcan and mapl/maplist/mapcon (part of Common Lisp), but for alists, plists and vectors.

Also, with slightly different semantics, the ‘mapt*’ family of functions for mapping over integers.

In the following table, the Common Lisp (CL) functions upon which the new Loopless (LL) functions are based are included for completeness and comparison.

PKG	Result accumulation method	nil	list	nconc
	Values mapped over
cl	elements of a list	mapc	mapcar	mapcan
cl	conses of a list	mapl	maplist	mapcon
ll	(key . value)s of an alist	mapal	mapalist	mapacon
ll	(key value)s of an alist	mapal*	mapalist*	mapacon*
ll	(key value)s of a plist	mappl	mapplist	mappcon
ll	elements of a vector	mapv	mapvector	mapvcon
ll	integers from 0 below max	mapt	maptimes	maptcon
ll	As above, but no iter var	mapt*	maptimes*	maptcon*

Note that the names of the new functions are constructed in a consistent way, based on mapl/maplist/mapcon. The behavior is more similar to mapc/mapcar/mapcan, however.