Node:SRFI-1 Association Lists, Next:SRFI-1 Set Operations, Previous:SRFI-1 Deleting, Up:SRFI-1
Association lists are described in detail in section Association Lists. The present section only documents the additional procedures for dealing with association lists defined by SRFI-1.
| assoc key alist [=] | Scheme Procedure |
Return the pair from alist which matches key. Equality is
determined by =, which defaults to equal? if not given.
alist must be an association lists--a list of pairs.
|
| alist-cons key datum alist | Scheme Procedure |
Equivalent to
(cons (cons key datum) alist) This procedure is used to coons a new pair onto an existing association list. |
| alist-copy alist | Scheme Procedure |
| Return a newly allocated copy of alist, that means that the spine of the list as well as the pairs are copied. |
| alist-delete key alist [=] | Scheme Procedure |
| alist-delete! key alist [=] | Scheme Procedure |
Return a list containing the pairs of alist, but without the
pairs whose CARS are equal to key. Equality is determined
by =, which defaults to equal? if not given.
|